Opel Insignia: Immobilizer
SCHEMATIC AND WIRING DIAGRAMS
IMMOBILIZER WIRING SCHEMATICS
Immobilizer
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DTC B2955 (with BTM)
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnos
Theft Deterrent Module Replacement
Preliminary Procedure
Front Floor Console Replacement.
Theft Deterrent Module
Procedure
Disconnect the electrical connector.
Control Module References for pr
IMMOBILIZER DESCRIPTION AND OPERATION
Without BTM
The immobilizer system functions are provided by the Immobilizer Control
Module, the Body Control
Module (BCM) and the Engine Control Module (ECM),
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NOTE: Examples used in this article are general in nature and do not
necessarily
relate to a specific engine or system. Illustrations and procedures have
been chosen to guide mechanic through engine overhaul process.
Descriptions of processes of cleaning, inspection, ass
Cooling Fan Description and Operation
System Overview
The engine cooling fan system consists of 2 electric cooling fans and 3 fan
relays. The cooling fan relays
are arranged in a series/parallel (S/P) configuration. This allows the engine
control module (ECM) to
operate both fans together at low o