Chevrolet Trax: Airbag indicator 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
Circuit/System Description
When the ignition is turned ON, during the bulb check, the driver air bag
indicator will flash, and then turn OFF
after the bulb check. The inflatable restraint sensing and diagnostic module (SDM)
performs diagnostic tests on
the SIR system during the bulb check. If any malfunction exists the SDM will
request the instrument cluster to
illuminate the air bag indicator steady, via serial data. If a preexisting
malfunction exists, the air bag indicator
will illuminate steady immediately after the ignition is turned ON. If the
ignition 1 voltage is outside of the
normal operating voltage range of 9-16 V, the inflatable restraint sensing and
diagnostic module will command
the instrument cluster to illuminate the air bag indicator ON, even with no DTCs
present, and then disable all
deployment loops.
Diagnostic Aids
- A DTC B1370 may set if the ignition 1 circuit is outside the 9-16 V
range.
- A flashing driver air bag indicator is displayed if the inflatable
restraint sensing and diagnostic module
was programmed but did not fully complete the programming. For a flashing
driver air bag indicator,
refer to Inflatable Restraint Sensing and Diagnostic Module Programming and
Setup .
Reference Information
Schematic Reference
SIR Schematics (Encore), SIR Schematics (Trax)
Connector End View Reference
WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS -
INDEX - ENCORE WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT
CONNECTOR END VIEWS - INDEX - TRAX
Description and Operation
Supplemental Inflatable Restraint System Description and Operation
Electrical Information Reference
- Circuit Testing
- Testing for Intermittent Conditions and Poor Connections
- Connector Repairs
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
If the driver air bag indicator is flashing, refer to Inflatable Restraint
Sensing and Diagnostic Module
Programming and Setup .
Circuit/System Testing
- Verify K36 Inflatable Restraint Sensing and Diagnostic Module DTCs are
not set.
- If Inflatable Restraint Sensing and Diagnostic Module DTCs are set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If Inflatable Restraint Sensing and Diagnostic Module DTCs are not
set
- Verify the air bag indicator turns ON and OFF when commanding the
Instrument Cluster All Indicators
ON and OFF with a scan tool.
- If air bag indicator does not turn on or off
If the air bag indicator does not turn ON and OFF as expected, replace the
P16 Instrument Cluster
- If air bag indicator does turn on or off
- Replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
- SIR/SRS Wiring Repairs
- Control Module References for instrument cluster or inflatable
restraint sensing and diagnostic module
replacement, programming and setup
READ NEXT:
SIR component location affects how a vehicle should be serviced. There are
parts of the SIR system installed in
various locations around a vehicle. To find the location of the SIR components
refer t
General Service Instructions
WARNING: When performing service on or near the SIR components or
the SIR
wiring, the SIR system must be disabled. Refer to SIR Disabling and
Enabling . Failure to observ
SEE MORE:
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 Descriptors
D
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 Descriptors
D