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Diagnostic Trouble Code: B0012
Diagnostic Trouble Code Name: Driver Frontal Deployment Loop Stage 1
Vehicle Make: Chevrolet
Vehicle Model: Caprice (VE)
Diagnostic Code Entered By: ZerOne
Diagnostic Code Entered On: Wed Oct 06, 2010 11:00 pm
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Please Note: The DTC Information provided has been randomly generated.
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Diagnostic Trouble Code Description:
Device 1 Environment Identifier Not Programmable
Possible Sensor Faults
Body Control Module
Possible Related Diagnostic Trouble Codes
DTC B3984
Circuit / System Description
When certain modules are programmed and configured during installation, the module learns a specific immobilizer identifier which is unique to the vehicle. The immobilizer identifier is used to prevent swapping modules between vehicles. The body control module (BCM) is the keeper of the immobilizer identifier. The instrument cluster, electronic brake control module (EBCM), and HVAC control module each learn the immobilizer identifier during their configuration process. During vehicle operation, each of these modules compare their immobilizer identifier to the BCM. If the identifiers match, vehicle starting is allowed. If an immobilizer identifier does not match, vehicle starting is disabled.
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