Opel Insignia: Diagnostic Information and Procedures
DTC B154A or B154B
Diagnostic Instructions
- Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
- Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
- Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptor
DTC B154A 39
Driver Mirror Internal Malfunction
DTC B154B 39
Passenger Mirror Internal Malfunction
Circuit/System Description
The outside mirror switch and passenger window switch are on a serial data
circuit with the memory
seat module as the master. The mirror select and directional control switches
are inputs to the memory
seat module through the serial data circuit. When the memory seat module
receives switch inputs from
the outside mirror switch, mirror output commands are sent to the appropriate
switch through the serial
data circuit. The outside mirror switch and passenger window switch control the
left and right outside
rear view mirrors through bi-directional motor control circuits. The motor
control circuits are floating
while in an inactive state and the switches will apply power and ground to the
control circuits as
necessary to move the mirror in the commanded direction.
Mirror position is determined by both horizontal and vertical position sensors
in each of the power
mirrors. The outside mirror switch and passenger window switch supply a 5 V
reference, low reference,
and horizontal and vertical position signal circuits to these sensors. The
signal circuits are referenced
from 5 V by the switches and the signal circuit voltage levels represent the
mirror positions. The mirror
positions are sent to the memory seat module through the serial data circuit
where they are stored for
memory mirror operation. When the memory seat module receives a memory recall
command, the
memory seat module will send the go to position commands to the outside mirror
switch and passenger
window switch. The switches will then drive the appropriate mirror motors to the
commanded position
sensor settings.
Conditions for Running the DTC
Battery voltage must be between 9 - 16 V.
Conditions for Setting the DTC
B154A 39
An internal malfunction has been detected by the outside rearview mirror
switch while commanding the
driver outside rearview mirror UP, DOWN, LEFT or RIGHT.
B154B 39
An internal malfunction has been detected by the outside rearview mirror
switch while commanding the
passenger outside rearview mirror UP, DOWN, LEFT or RIGHT.
Action Taken When the DTC Sets
The affected outside rearview mirror will be inoperative.
Conditions for Clearing the DTC
B154A 39
The driver outside rearview mirror must be replaced before the DTC can be
cleared.
B154B 39
The passenger outside rearview mirror must be replaced before the DTC can be
cleared.
Reference Information
Schematic Reference
Outside Rearview Mirror Wiring Schematics
Connector End View Reference
COMPONENT CONNECTOR END VIEWS - INDEX
Description and Operation
Outside Mirror Description and Operation (With A45)Outside Mirror
Description and Operation
(Without A45)
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information.
Circuit/System Verification
1. Ignition ON.
2. Verify the A9A Outside Rearview Mirror - Driver moves when commanding the
Driver Mirror
Horizontal Movement Right/Left and Driver Mirror Vertical Movement Up/Down with
a scan
tool.
- If the A9A Outside Rearview Mirror - Driver does not move RIGHT or
LEFT or UP
or DOWN
Replace the M77D Outside Rearview Mirror Motor - Driver.
- Go to next step: If the A9A Outside Rearview Mirror-Driver moves
RIGHT, LEFT,
UP and DOWN
3. Verify the A9B Outside Rearview Mirror-Passenger moves when commanding the
Passenger
Mirror Horizontal Movement Right/Left and Passenger Mirror Vertical Movement
Up/Down with
a scan tool.
- If the A9B Outside Rearview Mirror-Passenger does not move RIGHT or
LEFT or UP
or DOWN
Replace the M77P Outside Rearview Mirror Motor - Passenger.
- Go to next step: If the A9B Outside Rearview Mirror-Passenger moves
RIGHT, LEFT,
UP and DOWN
4. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
Outside Rearview Mirror Actuator Replacement.
Symptoms - Mirrors
NOTE: The following steps must be completed before using the symptom
tables.
1. Perform the Diagnostic System Check - Vehicle before using the Symptom
Tables in order to
verify that all of the following are true:
- There are no DTCs set.
- The control modules can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the
system functions. Refer to
the following system descriptions:
- Outside Mirror Description and Operation (With A45)Outside Mirror
Description
and Operation (Without A45)
- Automatic Day-Night Mirror Description and Operation
Visual/Physical Inspection
- Inspect for aftermarket devices which could affect the operation of the
system. Refer to Checking Aftermarket Accessories.
- Inspect the easily accessible or visible system components for obvious
damage or conditions
which could cause the symptom.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent
conditions. Refer to Testing for Intermittent Conditions and Poor Connections.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to
diagnose the symptom:
- Heated Mirrors Malfunction
- Automatic Day-Night Mirrors Malfunction
- Power Mirror Malfunction (With A45)Power Mirror Malfunction (Without
A45)
HEATED MIRRORS MALFUNCTION
Diagnostic Instructions
- Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
- Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
- Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
Diagnostic Fault Information
1. Heated Mirror Inoperative
2. Heated Mirror Always On
Circuit/System Description
The rear defogger relay supplies voltage to the outside rearview mirror
heater elements based on the
current state of the rear window defogger. The relay supplies B+ through the
driver/passenger mirror
heating element control circuit when a request is received.
Reference Information
Schematic Reference
Outside Rearview Mirror Wiring Schematics
Connector End View Reference
COMPONENT CONNECTOR END VIEWS - INDEX
Description and Operation
Outside Mirror Description and Operation (With A45)Outside Mirror
Description and Operation
(Without A45)
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information.
Circuit/System Verification
1. Engine running.
2. Verify the E18 Rear Defogger Grid turns ON and OFF when commanding the Rear
Defogger On
and Off with a scan tool.
- If the E18 Rear Defogger Grid does not turn ON and OFF
Refer to Rear Window Defogger Malfunction.
- Go to next step: If the E18 Rear Defogger Grid turns ON and OFF
3. Verify the E17D Outside Rearview Mirror Glass-Driver and the E17P Outside
Rearview Mirror
Glass-Passenger become warm when commanding the Rear Defogger On with a scan
tool.
- If the E17D Outside Rearview Mirror Glass-Driver and the E17P Outside
Rearview
Mirror Glass-Passenger do not become warm
Refer to Circuit/System Testing.
- Go to next step: If both E17D Outside Rearview Mirror Glass-Driver
and the E17P
Outside Rearview Mirror Glass-Passenger become warm
4. All OK.
Circuit/System Testing
1. Ignition OFF and all vehicle systems OFF, disconnect the X1 and X2 harness
connector at the
appropriate E17 Outside Rearview Mirror Glass. It may take up to 2 minutes for
all vehicle
systems to power down.
2. Test for less than 10 Ω between the ground circuit terminal A X2 and ground.
- Ignition OFF.
- Test for less than 2 Ω in the ground circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, repair the open/high resistance in the ground
connection.
- Go to next step: If less than 10 Ω
3. Connect a test lamp between the control circuit terminal A X1 and ground.
4. Engine running.
5. Verify the test lamp turns ON and OFF when commanding the Rear Defogger On
and Off with a
scan tool.
- Ignition OFF, disconnect the X2 harness connector at X50A Fuse Block -
Underhood,
ignition ON.
- Test for less than 1 V between the control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, refer to Rear Window Defogger Malfunction.
- If the lamp is always OFF
- Ignition OFF, disconnect the harness connector at X50A Fuse Block -
Underhood, ignition
ON.
- Test for infinite resistance between the control circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in the control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω refer to Rear Window Defogger Malfunction.
- Go to next step: If the lamp turns on and off
6. Replace the E17 Outside Rearview Mirror Glass.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
Outside Rearview Mirror Glass Replacement.
Automatic Day-Night Mirrors Malfunction
Diagnostic Instructions
- Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
- Review Strategy Based Diagnosis for an overview of the diagnostic
approach
- Diagnostic Procedure Instructions provides an overview of each
diagnostic category
Diagnostic Fault Information
1. Inside and Outside Rearview Mirror Automatic Dimming Malfunction
2. Outside Rearview Mirror Automatic Dimming Malfunction
Circuit/System Description
The inside rearview mirror uses 2 photocell sensors. One sensor is the rear
light sensor, located on the
face side of the mirror, facing the rear of the vehicle. The rear light sensor
is used to determine light
conditions present at the mirror face. The other sensor is the front light
sensor, located on the backside
of the mirror, facing the front of the vehicle. The front light sensor is used
to determine the exterior light
conditions at the front of the vehicle. With a low exterior light condition
detected by the front light
sensor and a high light condition from the rear light sensor, the inside
rearview mirror will automatically
darken the face of the inside rearview mirror and the driver outside rearview
mirror. The inside rearview
mirror provides a signal circuit and a low reference circuit to the driver
mirror face to darken the mirror
when needed.
With the gear selector lever in the REVERSE position and the engine running,
backup lamp control
voltage is supplied as an input to the inside rearview mirror. The mirror
monitors this input to disable the
automatic day-night feature. This allows the driver to see objects in the mirror
clearly when backing up,
regardless of the rear light sensor status.
Reference Information
Schematic Reference
- Inside Rearview Mirror Wiring Schematics
- Outside Rearview Mirror Wiring Schematics
Connector End View Reference
COMPONENT CONNECTOR END VIEWS - INDEX
Description and Operation
Automatic Day-Night Mirror Description and Operation
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information.
Circuit/System Verification
1. Ignition ON.
2. Cover the windshield with a blanket or other suitable item.
3. Verify the A10 Inside Rearview Mirror face dims when shining a bright light
into the rear light
sensor
- If the A10 Inside Rearview Mirror does not dim
Refer to Circuit/System Testing - Inside Review Mirror Dimming
Inoperative
- Go to next step: If the A10 Inside Rearview Mirror dims
4. Verify the A10 Inside Rearview Mirror face transitions from dim to bright
while commanding the
Backup Lamps Active and Inactive with a scan tool.
- If the A10 Inside Rearview Mirror does not transition between dim and
bright.
Refer to Circuit/System Testing - Day-Night Disable Malfunction
- Go to next step: If the A10 Inside Rearview Mirror transitions
between bright and dim
states
5. Verify the A9A Outside Rearview Mirror-Driver face dims when shining a
bright light into the
rear light sensor.
- If the A9A Outside Rearview Mirror-Driver does not dim
Refer to Outside Rearview Mirror Dimming Malfunction.
- Go to next step: If the A9A Outside Rearview Mirror-Driver dims
6. Verify the A9A Outside Rearview Mirror-Driver face transitions from dim to
bright while
commanding the Backup Lamps Active and Inactive with a scan tool.
- If the A9A Outside Rearview Mirror-Driver does not transition between
bright and
dim states
Refer to Outside Rearview Mirror Dimming Malfunction.
- Go to next step: If the A9A Outside Rearview Mirror-Driver
transitions between
bright and dim states
7. All OK.
Circuit/System Testing
Inside Review Mirror Dimming Inoperative
1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector
at the A10 Inside
Rearview Mirror. It may take up to 2 minutes for all vehicle systems to power
down.
2. Test for less than 10 Ω between the ground circuit terminal 5 and ground.
- Ignition OFF, remove the test lamp.
- Test for less than 2 Ω in the ground circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, repair the open/high resistance in the ground
connection.
- Go to next step: If less than 10 Ω
3. Ignition ON.
4. Verify a test lamp illuminates between the ignition circuit terminal 2 and
ground.
If the test lamp does not illuminate and the circuit fuse is good
- Ignition OFF, remove the test lamp.
- Test for less than 2 Ω in the ignition circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, verify the fuse is not open and there is voltage
at the fuse.
- If the test lamp does not illuminate and the circuit fuse is open
- Ignition OFF, remove the test lamp.
- Test for infinite resistance between the ignition circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for infinite resistance between the signal circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- If infinite resistance, replace the A10 Inside Rearview Mirror
- Go to next step: If the test lamp illuminates
5. Replace the A10 Inside Rearview Mirror.
Day-Night Disable Malfunction
1. Ignition OFF, disconnect the harness connector at the A10 Inside Rearview
Mirror. Ignition ON
2. Connect a test lamp between the control circuit terminal 1 and ground
3. Verify the test lamp turns ON and OFF while commanding the Backup Lamps
Active and Inactive
with a scan tool.
- If the test lamp is always OFF
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the K9 Body
Control Module.
- Test for infinite resistance between the control circuit terminal 1 and
ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in the control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, refer to Backup Lamps Malfunction.
- If the test lamp is always ON
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the K9 Body
Control Module, ignition ON.
- Test for less than 1 V between the control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, refer to Backup Lamps Malfunction
- Go to next step: If the test lamp turns ON and OFF
4. Replace the A10 Inside Rearview Mirror.
Outside Rearview Mirror Dimming Malfunction
1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector
at the A9A Outside
Rearview Mirror-Driver. It may take up to 2 minutes for all vehicle systems to
power down.
2. Test for less than 10 Ω between the low reference circuit terminal 16 and
ground.
- Ignition OFF, disconnect the harness connector at the A10 Inside
Rearview Mirror.
- Test for less than 2 Ω in the low reference circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the A10 Inside Rearview Mirror.
- Go to next step: If less than 10 Ω
3. Ignition ON.
4. Test for less than 1 V between the control circuit terminal 2 and ground.
- Ignition OFF, disconnect the harness connector at the A10 Inside
Rearview Mirror, ignition
ON.
- Test for less than 1 V between the control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V replace the A10 Inside Rearview Mirror.
- Go to next step: If less than 1 V
5. Ignition ON, headlamps ON, vehicle in PARK, cover the front light sensor
with a towel or other
suitable item. Shine a flashlight at the rear light sensor.
6. Test for greater than 1 V between the control circuit terminal 2 and ground.
- Ignition OFF, disconnect the harness connector at the A10 Inside
Rearview Mirror, ignition
ON.
- Test for infinite resistance between the control circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in the control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, test or replace the A10 Inside Rearview Mirror.
- Go to next step: If greater than 1 V
7. Test or replace A9A Outside Rearview Mirror-Driver.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
- Inside Rearview Mirror Replacement
- Outside Rearview Mirror Glass Replacement
Power Mirror Malfunction (with A45)
Diagnostic Instructions
- Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
- Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
- Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
Diagnostic Fault Information
1. Outside Rearview Mirror Switch Malfunction
2. Driver or Passenger Outside Power Mirror Malfunction
3. Power Mirror Memory Feature Malfunction
Circuit/System Description
The outside mirror switch and passenger window switch are on a serial data
circuit with the memory
seat module as the master. The mirror select and directional control switches
are inputs to the memory
seat module through the serial data circuit. When the memory seat module
receives switch inputs from
the outside mirror switch, mirror output commands are sent to the appropriate
switch through the serial
data circuit. The outside mirror switch and passenger window switch control the
left and right outside
rear view mirrors through bi-directional motor control circuits. The motor
control circuits are floating
while in an inactive state and the switches will apply power and ground to the
control circuits as
necessary to move the mirror in the commanded direction.
Mirror position is determined by both horizontal and vertical position sensors
in each of the power
mirrors. The outside mirror switch and passenger window switch supply a 5 V
reference, low reference,
and horizontal and vertical position signal circuits to these sensors. The
signal circuits are referenced
from 5 V by the switches and the signal circuit voltage levels represent the
mirror positions. The mirror
positions are sent to the memory seat module through the serial data circuit
where they are stored for
memory mirror operation. When the memory seat module receives a memory recall
command, the
memory seat module will send the go to position commands to the outside mirror
switch and passenger
window switch. The switches will then drive the appropriate mirror motors to the
commanded position
sensor settings.
Reference Information
Schematic Reference
Outside Rearview Mirror Wiring Schematics
Connector End View Reference
COMPONENT CONNECTOR END VIEWS - INDEX
Description and Operation
Outside Mirror Description and Operation (With A45)
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information.
Circuit/System Verification
1. Ignition ON.
2. Verify the scan tool Mirror Select Switch parameter changes from None to Left
and Right when
cycling the S146 Outside Rearview Mirror Switch.
- If the parameter does not change
Refer to Circuit/System Testing - Outside Rearview Mirror Switch
Malfunction.
- Go to next step: If the parameter changes
3. Verify the scan tool Mirror Direction Switch parameter changes from
Inactive to Up, Down, Right
and Left when cycling the S146 Outside Rearview Mirror Switch.
- If the parameter does not change
Refer to Circuit/System Testing - Outside Rearview Mirror Switch
Malfunction.
- Go to next step: If the parameter changes
4. Verify the A9A Outside Rearview Mirror - Driver moves when commanding the
Driver Mirror
Horizontal Movement Right/Left and Driver Mirror Vertical Movement Up/Down with
a scan
tool.
- If the A9A Outside Rearview Mirror - Driver does not move RIGHT or
LEFT or UP
or DOWN
Refer to Circuit/System Testing - Driver Outside Mirror Movement
Malfunction.
- Go to next step: If the A9A Outside Rearview Mirror - Driver moves
RIGHT, LEFT,
UP and DOWN
5. Verify the scan tool Driver Mirror Vertical Position parameters are
between 0.2 - 4.8 V and change
when commanding the Driver Mirror Vertical Movement Up/Down with a scan tool.
- If not between 0.2 - 4.8 V or does not change
Refer to Circuit/System Testing - Driver Mirror Position Sensor Circuit
Test.
- Go to next step: If between 0.2 - 4.8 V and changes
6. Verify the scan tool Driver Mirror Horizontal Position parameters are
between 0.2 - 4.8 V and
change when commanding the Driver Mirror Horizontal Movement Right/Left with a
scan tool.
- If not between 0.2 - 4.8 V or does not change
Refer to Circuit/System Testing - Driver Mirror Position Sensor Circuit
Test.
- Go to next step: If between 0.2 - 4.8 V and changes
7. Verify the A9B Outside Rearview Mirror-Passenger moves when commanding the
Passenger
Mirror Horizontal Movement Right/Left and Passenger Mirror Vertical Movement
Up/Down with
a scan tool.
- If the A9B Outside Rearview Mirror-Passenger does not move RIGHT or
LEFT or UP
or DOWN
Refer to Circuit/System Testing - Passenger Outside Mirror Movement
Malfunction.
- Go to next step: If the A9B Outside Rearview Mirror-Passenger moves
RIGHT, LEFT,
UP and DOWN
8. Verify the scan tool Passenger Mirror Vertical Position parameters are
between 0.2 - 4.8 V and
change while commanding the Passenger Mirror Horizontal Movement Right/Left with
a scan
tool.
- If not between 0.2 - 4.8 V or does not change
Refer to Circuit/System Testing - Passenger Mirror Position Sensor
Circuit Test.
- Go to next step: If between 0.2 - 4.8 V and changes
9. Verify the scan tool Passenger Mirror Horizontal Position parameters are
between 0.2 - 4.8 V and
change while commanding the Passenger Mirror Vertical Movement Up/Down with a
scan tool.
- If not between 0.2 - 4.8 V or does not change
Refer to Circuit/System Testing - Passenger Mirror Position Sensor
Circuit Test.
- Go to next step: If between 0.2 - 4.8 V and changes
10. All OK.
Circuit/System Testing
Outside Rearview Mirror Switch Malfunction
1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector
at the S146 Outside
Rearview Mirror Switch. It may take up to 2 minutes for all vehicle systems to
power down.
2. Test for less than 10 Ω between the ground circuit terminal 24 and ground.
- Ignition OFF.
- Test for less than 2 Ω in the ground circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, repair the open/high resistance in the ground
connection.
- Go to next step: If less than 10 Ω
3. Verify a test lamp illuminates between the B+ circuit terminal 23 and
ground.
- If the test lamp does not illuminate and the circuit fuse is good
- Ignition OFF, remove the test lamp.
- Test for less than 2 Ω in the ignition circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, verify the fuse is not open and there is voltage
at the fuse.
- If the test lamp does not illuminate and the circuit fuse is open
- Ignition OFF, remove the test lamp.
- Test for infinite resistance between the B+ circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for infinite resistance between the signal circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- If infinite resistance, replace the S146 Outside Rearview Mirror
Switch
- Go to next step: If the test lamp illuminates
4. Test or replace the S146 Outside Rearview Mirror Switch.
Driver Outside Mirror Movement Malfunction
1. Ignition OFF, disconnect the harness connector at the A9A Outside Rearview
Mirror-Driver.
Ignition ON.
2. Connect a test lamp between the control circuit terminal 9 and control
circuit terminal 12.
3. Verify the test lamp turns ON when commanding the Up and Down states with a
scan tool.
- If the test lamp remains OFF during either of the commands
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch.
- Test for infinite resistance between each control circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in each control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S146 Outside Rearview Mirror Switch.
- If the test lamp is always ON
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch, ignition ON.
- Test for less than 1 V between each control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the S146 Outside Rearview Mirror Switch
- Go to next step: If the test lamp turns ON during each of the
commands
4. Connect a test lamp between the control circuit terminal 10 and control
circuit terminal 12.
5. Verify the test lamp turns ON when commanding the Left and Right states
with a scan tool.
- If the test lamp remains OFF during either of the commands
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch.
- Test for infinite resistance between each control circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in each control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S146 Outside Rearview Mirror Switch.
- If the test lamp is always ON
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch, ignition ON.
- Test for less than 1 V between each control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the S146 Outside Rearview Mirror Switch
- Go to next step: If the test lamp turns ON during each of the
commands
6. Test or replace the M77D Outside Rearview Mirror Motor-Driver.
Driver Mirror Position Sensor Circuit Test
1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector
at the A9A Outside
Rearview Mirror-Driver. It may take up to 2 minutes for all vehicle systems to
power down.
2. Test for less than 10 Ω between the low reference circuit terminal 3 and
ground.
- Ignition OFF, disconnect the harness connector at the S146 Outside
Rearview Mirror
Switch.
- Test for less than 2 Ω in the low reference circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S146 Outside Rearview Mirror Switch.
- Go to next step: If less than 10 Ω
3. Ignition ON.
4. Test for 4.8 - 5.2 V between the 5 V reference circuit terminal 17 and
ground.
- Ignition OFF, disconnect the harness connector at the S146 Outside
Rearview Mirror
Switch.
- Test for infinite resistance between the 5 V reference circuit and
ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in the 5 V reference circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S146 Outside Rearview Mirror Switch.
- Ignition OFF, disconnect the harness connector at the S146 Outside
Rearview Mirror
Switch, ignition ON.
- Test for less than 1 V between the 5 V reference circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the S146 Outside Rearview Mirror Switch.
- Go to next step: If between 4.8 - 5.2 V
5. Verify the scan tool Driver Mirror Vertical Position parameter is less
than 4.6 V.
- Ignition OFF, disconnect the harness connector at the S146 Outside
Rearview Mirror
Switch, ignition ON.
- Test for less than 1 V between the signal circuit terminal 14 and
ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the S146 Outside Rearview Mirror Switch.
- Go to next step: If less than 4.6 V
6. Install a 3 A fused jumper wire between the signal circuit terminal 14 and
the 5 V reference circuit
terminal 17.
7. Verify the scan tool Driver Mirror Vertical Position or the parameter is
greater than 0.6 V.
- Ignition OFF, remove the jumper wire, disconnect the harness connector
at the S146
Outside Rearview Mirror Switch.
- Test for infinite resistance between the signal circuit terminal 1 and
ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in the signal circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S146 Outside Rearview Mirror Switch.
- Go to next step: If greater than 0.6 V
8. Verify the scan tool Driver Mirror Horizontal Position parameter is less
than 4.6 V.
- Ignition OFF, disconnect the harness connector at the S146 Outside
Rearview Mirror
Switch, ignition ON.
- Test for less than 1 V between the signal circuit terminal 7 and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the S146 Outside Rearview Mirror Switch.
- Go to next step: If less than 4.6 V
9. Install a 3 A fused jumper wire between the signal circuit terminal 7 and
the 5 V reference circuit
terminal 17.
10. Verify the scan tool Driver Mirror Horizontal Position or the parameter is
greater than 0.6 V.
- Ignition OFF, remove the jumper wire, disconnect the harness connector
at the S146
Outside Rearview Mirror Switch.
- Test for infinite resistance between the signal circuit terminal 1 and
ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in the signal circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S146 Outside Rearview Mirror Switch.
- Go to next step: If greater than 0.6 V
11. Test or replace the M77D Outside Rearview Mirror Motor-Driver.
Passenger Outside Mirror Movement Malfunction
1. Ignition OFF, disconnect the harness connector at the A9B Outside Rearview
Mirror-Passenger.
Ignition ON.
2. Connect a test lamp between the control circuit terminal 9 and control
circuit terminal 12.
3. Verify the test lamp turns ON when commanding the Up and Down states with a
scan tool.
- If the test lamp remains OFF during either of the commands
- Ignition OFF, remove the test lamp, disconnect the X2 harness connector
at the S79P
Window Switch-Passenger.
- Test for infinite resistance between each control circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in each control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S79P Window Switch-Passenger.
- If the test lamp is always ON
- Ignition OFF, remove the test lamp, disconnect the X2 harness connector
at the S79P
Window Switch-Passenger, ignition ON.
- Test for less than 1 V between each control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the S79P Window Switch-Passenger
- Go to next step: If the test lamp turns ON during each of the
commands
4. Connect a test lamp between the control circuit terminal 10 and control
circuit terminal 12.
5. Verify the test lamp turns ON when commanding the Left and Right states with
a scan tool.
- If the test lamp remains OFF during either of the commands
- Ignition OFF, remove the test lamp, disconnect the X2 harness connector
at the S79P
Window Switch-Passenger.
- Test for infinite resistance between each control circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in each control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S79P Window Switch-Passenger.
- If the test lamp is always ON
- Ignition OFF, remove the test lamp, disconnect the X2 harness connector
at the S79P
Window Switch-Passenger, ignition ON.
- Test for less than 1 V between each control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the S79P Window Switch-Passenger
- Go to next step: If the test lamp turns ON during each of the
commands
6. Test or replace the M77P Outside Rearview Mirror Motor-Passenger.
Passenger Mirror Position Sensor Circuit Test
1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector
at the A9B Outside
Rearview Mirror-Passenger. It may take up to 2 minutes for all vehicle systems
to power down.
2. Test for less than 10 Ω between the low reference circuit terminal 3 and
ground.
- Ignition OFF, disconnect the X2 harness connector at the S79P Window
Switch-Passenger.
- Test for less than 2 Ω in the low reference circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S79P Window Switch-Passenger.
- Go to next step: If less than 10 Ω
3. Ignition ON.
4. Test for 4.8 - 5.2 V between the 5 V reference circuit terminal 17 and
ground.
- Ignition OFF, disconnect the X2 harness connector at the S79P Window
Switch-Passenger.
- Test for infinite resistance between the 5 V reference circuit and
ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in the 5 V reference circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S79P Window Switch-Passenger.
- Ignition OFF, disconnect the X2 harness connector at the S79P Window
Switch-Passenger,
ignition ON.
- Test for less than 1 V between the 5 V reference circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the S79P Window Switch-Passenger.
- Go to next step: If between 4.8 - 5.2 V
5. Verify the scan tool Passenger Mirror Vertical Position parameter is less
than 4.6 V.
- Ignition OFF, disconnect the X2 harness connector at the S79P Window
Switch-Passenger,
ignition ON.
- Test for less than 1 V between the signal circuit terminal 9 and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the S79P Window Switch-Passenger.
- Go to next step: If less than 4.6 V
6. Install a 3 A fused jumper wire between the signal circuit terminal 9 and
the 5 V reference circuit
terminal 17.
7. Verify the scan tool Passenger Mirror Vertical Position or the parameter is
greater than 0.6 V.
- Ignition OFF, remove the jumper wire, disconnect the X2 harness
connector at the S79P
Window Switch-Passenger.
- Test for infinite resistance between the signal circuit terminal 9 and
ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in the signal circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S79P Window Switch-Passenger.
- Go to next step: If greater than 0.6 V
8. Verify the scan tool Passenger Mirror Horizontal Position parameter is
less than 4.6 V.
- Ignition OFF, disconnect the X2 harness connector at the S79P Window
Switch-Passenger,
ignition ON.
- Test for less than 1 V between the signal circuit terminal 7 and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the S79P Window Switch-Passenger.
- Go to next step: If less than 4.6 V
9. Install a 3 A fused jumper wire between the signal circuit terminal 7 and
the 5 V reference circuit
terminal 17.
10. Verify the scan tool Passenger Mirror Horizontal Position or the parameter
is greater than 0.6 V.
- Ignition OFF, remove the jumper wire, disconnect the X2 harness
connector at the S79P
Window Switch-Passenger.
- Test for infinite resistance between the signal circuit terminal 7 and
ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in the signal circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S79P Window Switch-Passenger.
- Go to next step: If greater than 0.6 V
11. Test or replace the M77P Outside Rearview Mirror Motor-Passenger.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
- Outside Rearview Mirror Actuator Replacement
- Front Side Door Window Switch Replacement
- Front Side Door Window Switch Replacement
Power Mirror Malfunction (without A45)
Diagnostic Instructions
- Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
- Review Strategy Based Diagnosis for an overview of the diagnostic
approach
- Diagnostic Procedure Instructions provides an overview of each
diagnostic category
Diagnostic Fault Information
1. Both Outside Power Mirrors Inoperative
2. Driver Outside Power Mirror Malfunction
3. Passenger Outside Power Mirror Malfunction
Circuit/System Description
The outside rearview mirror switch controls the outside rearview mirrors
based on the position of the
mirror selector switch and which movement position is selected. The outside
rearview mirror switch has
four positions: up, down, left, and right. B+ is applied to the switch from the
power mirror fuse and
when a movement position switch is selected, voltage is sent to the commanded
mirror via a mirror
control circuit. The opposite mirror control circuit acts as a ground circuit
for the bi-directional mirror
motor. Ground is the applied through the switch.
Reference Information
Schematic Reference
Outside Rearview Mirror Wiring Schematics
Connector End View Reference
COMPONENT CONNECTOR END VIEWS - INDEX
Description and Operation
Outside Mirror Description and Operation (Without A45)
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Circuit/System Verification
1. Verify the mirror glass of the A9A Outside Rearview Mirror-Driver and the
A9B Outside
Rearview Mirror-Passenger move UP, DOWN, LEFT and RIGHT with the S146 Outside
Rearview Mirror Switch.
- If both outside mirror glasses do not move
Refer to Circuit/System Testing - Both Outside Rearview Mirrors
Inoperative.
- If the driver outside mirror glass does not move UP, DOWN, LEFT or
RIGHT
Refer to Circuit/System Testing - Driver Outside Mirror Movement
Malfunction.
- If the passenger outside mirror glass does not move UP, DOWN, LEFT or
RIGHT
Refer to Circuit/System Testing - Passenger Outside Mirror Movement
Malfunction.
- Go to next step: If the mirror glass of the A9A Outside Rearview
Mirror-Driver and
the A9B Outside Rearview Mirror-Passenger move UP, DOWN, LEFT and RIGHT
2. All OK.
Circuit/System Testing
Both Outside Rearview Mirrors Inoperative
1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector
at the S146 Outside
Rearview Mirror Switch. It may take up to 2 minutes for all vehicle systems to
power down.
2. Test for less than 10 Ω between the ground circuit terminal 24 and ground.
- Ignition OFF.
- Test for less than 2 Ω in the ground circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, repair the open/high resistance in the ground
connection.
- Go to next step: If less than 10 Ω
3. Verify a test lamp illuminates between the B+ circuit terminal 23 and
ground.
- If the test lamp does not illuminate and the circuit fuse is good
- Ignition OFF.
- Test for less than 2 Ω in the B+ circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, verify the fuse is not open and there is voltage
at the fuse.
- If the test lamp does not illuminate and the circuit fuse is open
- Ignition OFF.
- Test for infinite resistance between the B+ circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for infinite resistance between each of the control circuit
terminals listed below and
ground:
- Control circuit terminal 2
- Control circuit terminal 3
- Control circuit terminal 4
- Control circuit terminal 6
- Control circuit terminal 7
- Control circuit terminal 8
- If less than infinite resistance, repair the short to ground on the
circuit.
- If infinite resistance, replace the appropriate M77 Outside Rearview
Mirror Motor.
- Go to next step: If the test lamp illuminates
4. Test or replace the S146 Outside Rearview Mirror Switch.
Driver Outside Mirror Movement Malfunction
1. Ignition OFF, disconnect the X510 inline harness connector at the A9A
Outside Rearview Mirror-
Driver. Ignition ON
2. Connect a test lamp between the control circuit terminal 9 and control
circuit terminal 12.
3. Verify the test lamp turns ON when commanding the UP and DOWN states with the
S146 Outside
Rearview Mirror Switch.
- If the test lamp remains OFF during either of the commands
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch.
- Test for infinite resistance between each control circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in each control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, test or replace the S146 Outside Rearview Mirror
Switch.
- If the test lamp is always ON
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch, ignition ON.
- Test for less than 1 V between each control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, test or replace the S146 Outside Rearview Mirror
Switch
- Go to next step: If the test lamp turns ON during each of the
commands
4. Connect a test lamp between the control circuit terminal 10 and control
circuit terminal 12.
5. Verify the test lamp turns ON when commanding the LEFT and RIGHT states with
the S146
Outside Rearview Mirror Switch.
- If the test lamp remains OFF during either of the commands
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch.
- Test for infinite resistance between each control circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in each control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, test or replace the S146 Outside Rearview Mirror
Switch.
- If the test lamp is always ON
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch, ignition ON.
- Test for less than 1 V between each control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, test or replace the S146 Outside Rearview Mirror
Switch
- Go to next step: If the test lamp turns ON during each of the
commands
6. Test or replace the M77D Outside Rearview Mirror Motor-Driver.
Passenger Outside Mirror Movement Malfunction
1. Ignition OFF, disconnect the X610 inline harness connector at the A9B
Outside Rearview Mirror-
Passenger. Ignition ON
2. Connect a test lamp between the control circuit terminal 9 and control
circuit terminal 12.
3. Verify the test lamp turns ON when commanding the UP and DOWN states with the
S146 Outside
Rearview Mirror Switch.
- If the test lamp remains OFF during either of the commands
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch.
- Test for infinite resistance between each control circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in each control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, test or replace the S146 Outside Rearview Mirror
Switch.
- If the test lamp is always ON
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch, ignition ON.
- Test for less than 1 V between each control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, test or replace the S146 Outside Rearview Mirror
Switch
- Go to next step: If the test lamp turns ON during each of the
commands
4. Connect a test lamp between the control circuit terminal 10 and control
circuit terminal 12.
5. Verify the test lamp turns ON when commanding the LEFT and RIGHT states with
the S146
Outside Rearview Mirror Switch.
- If the test lamp remains OFF during either of the commands
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch.
- Test for infinite resistance between each control circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in each control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, test or replace the S146 Outside Rearview Mirror
Switch.
- If the test lamp is always ON
- Ignition OFF, remove the test lamp, disconnect the harness connector at
the S146 Outside
Rearview Mirror Switch, ignition ON.
- Test for less than 1 V between each control circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, test or replace the S146 Outside Rearview Mirror
Switch
- Go to next step: If the test lamp turns ON during each of the
commands
6. Test or replace the M77P Outside Rearview Mirror Motor-Passenger.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
- Outside Rearview Mirror Actuator Replacement
- Front Side Door Window Switch Replacement
Power Mirror Tilt Inoperative in Reverse
Diagnostic Instructions
- Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
- Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
- Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
Circuit/System Description
The outside mirror switch and passenger window switch are on a serial data
circuit with the memory
seat module as the master. The mirror select and directional control switches
are inputs to the memory
seat module through the serial data circuit. When the memory seat module
receives switch inputs from
the outside mirror switch, mirror output commands are sent to the appropriate
switch through the serial
data circuit. The outside mirror switch and passenger window switch control the
left and right outside
rear view mirrors through bi-directional motor control circuits. The motor
control circuits are floating
while in an inactive state and the switches will apply power and ground to the
control circuits as
necessary to move the mirror in the commanded direction.
Mirror position is determined by both horizontal and vertical position sensors
in each of the power
mirrors. The outside mirror switch and passenger window switch supply a 5 V
reference, low reference,
and horizontal and vertical position signal circuits to these sensors. The
signal circuits are referenced
from 5 V by the switches and the signal circuit voltage levels represent the
mirror positions. The mirror
positions are sent to the memory seat module through the serial data circuit
where they are stored for
memory mirror operation. When the memory seat module receives a memory recall
command, the
memory seat module will send the go to position commands to the outside mirror
switch and passenger
window switch. The switches will then drive the appropriate mirror motors to the
commanded position
sensor settings.
Diagnostic Aids
The Park Tilt Mirror in Reverse is a feature in the Personalization Menu of
the audio system controls
that allows the operator to program the driver and/or passenger outside rearview
mirrors to tilt
downward when the vehicle is shifted into R (reverse). Verify that this feature
has been correctly
programmed into the system before performing extensive diagnostics
Reference Information
Schematic Reference
Outside Rearview Mirror Wiring Schematics
Connector End View Reference
COMPONENT CONNECTOR END VIEWS - INDEX
Description and Operation
Outside Mirror Description and Operation (With A45)Outside Mirror
Description and Operation
(Without A45)
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information.
Circuit/System Verification
1. Ignition ON.
2. Verify the A9A Outside Rearview Mirror - Driver moves when commanding the
Driver Mirror
Horizontal Movement Right/Left and Driver Mirror Vertical Movement Up/Down with
a scan
tool.
- If the A9A Outside Rearview Mirror - Driver does not move RIGHT or
LEFT or UP
or DOWN
Refer to Power Mirror Malfunction (With A45)Power Mirror Malfunction
(Without
A45).
- Go to next step: If the A9A Outside Rearview Mirror - Driver moves
RIGHT, LEFT,
UP and DOWN
3. Verify the A9B Outside Rearview Mirror-Passenger moves when commanding the
Passenger
Mirror Horizontal Movement Right/Left and Passenger Mirror Vertical Movement
Up/Down with
a scan tool.
- If the A9B Outside Rearview Mirror-Passenger does not move RIGHT or
LEFT or UP
or DOWN
Refer to Power Mirror Malfunction (With A45)Power Mirror Malfunction
(Without
A45).
- Go to next step: If the A9B Outside Rearview Mirror-Passenger moves
RIGHT, LEFT,
UP and DOWN
4. All OK.
Circuit/System Testing
1. Engine running, shift the vehicle in REVERSE.
2. Verify that the appropriate A9 Outside Rearview Mirror moves DOWN.
- If the A9 Outside Rearview Mirror does not move DOWN
Replace the K40 Seat Memory Control Module
- Go to next step: If the A9 Outside Rearview Mirror does move DOWN
3. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
Control Module References for the seat memory control module replacement,
programming and setup.
READ NEXT:
Outside Rearview Mirror Replacement
Preliminary Procedures
Front Side Door Window Garnish Molding Replacement.
Outside Rearview Mirror Bolt [3x]
CAUTION:
Fastener Caution.
Tighten
9 N.m (80 lb
AUTOMATIC DAY-NIGHT MIRROR DESCRIPTION AND OPERATION
Inside Rearview Mirror with the Automatic Day-Night Feature System
Operation
The inside rearview mirror uses 2 photocell sensors. One sensor is th
SPECIFICATIONS
FASTENER TIGHTENING TORQUE SPECIFICATIONS
Reusable Threaded Fastener Tightening Specifications
NOTE:
All fasteners listed in this table can be reused after removal.
SCHEMATIC WIRING DI
SEE MORE:
The diagnosis and repair procedures in a GM Service Manual contain both
general and specific Dangers,
Warnings, Cautions, Notes or Importants. GM is dedicated to the presentation of
service information that
helps the technician to diagnose and repair the systems necessary for the proper
operation
Use the slider knob on the air vent
louvers to change the amount and
direction of the airflow.
To close the outboard air vents,
move the slider knob to the full
outboard position.
To close the center air vents, move
the slide knob to the full inboard
position.
To close the rear passenger air
vent