Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK2006RAINIER AWD V8-5.3L VIN MREPAIR AND DIAGNOSISRESTRAINTS AND SAFETY SYSTEMSAIR BAG SYSTEMSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESPASSENGER PRESENCE SYSTEM INDICATOR CIRCUIT MALFUNCTION
2006 Buick Rainier AWD V8-5.3L VIN M
Passenger Presence System Indicator Circuit Malfunction
2006 Buick Rainier AWD V8-5.3L VIN MSECTION Passenger Presence System Indicator Circuit Malfunction
PASSENGER PRESENCE SYSTEM INDICATOR CIRCUIT MALFUNCTION
CIRCUIT DESCRIPTION
The PASSENGER AIR BAG ON/OFF indicators located on the rearview mirror are used to notify the driver when the passenger presence system (PPS) has enabled or disabled the instrument panel (I/P) inflator module. The PPS air bag indicators will also inform the driver of any PPS malfunctions. When the ignition is turned on, the PPS module is supplied with ignition 1 voltage and commands both PASSENGER AIR BAG ON/OFF indicators ON for 5 seconds. The PPS module conducts tests on the PPS components and circuits while both PASSENGER AIR BAG ON/OFF indicators are ON. If no malfunctions are detected the PPS module will turn the PASSENGER AIR BAG indicator ON or OFF depending on the status of the PPS. If a malfunction is detected, the PPS module will store a DTC, default the PPS to the OFF state and communicate with the SDM that a DTC has been set. The SDM will request the instrument panel cluster (IPC) to turn the AIR BAG indicator ON to notify the driver of a PPS malfunction.
DIAGNOSTIC AIDS
The following can cause an intermittent condition:
- A short in the passenger air bag OFF indicator control circuit
- A short in the passenger air bag ON indicator control circuit
- An open or high resistance in the passenger air bag OFF indicator control circuit
- An open or high resistance in the passenger air bag ON indicator control circuit
TEST DESCRIPTION
Step 1 - Step 10:
The numbers below refer to the step numbers on the diagnostic table.
4. This step tests the ignition 1 voltage circuit between the inside rearview mirror and the underhood fuse block for a short to ground, a high resistance, or an open.
5. This step tests the passenger air bag OFF indicator control circuit for a short to ground, a high resistance, or an open.
6. This step test the passenger air bag ON indicator control circuit for a short to ground, a high resistance, or an open.
7. This step tests the PPS module for proper operation.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.