The PASSENGER AIR BAG ON/OFF indicators, located in the center of instrument panel cluster (IPC), are used to notify the driver when the passenger presence system (PPS) has enabled or disabled the I/P inflator module. When the ignition is turned ON, the PPS module is supplied with voltage and commands the PASSENGER AIR BAG ON/OFF indicators ON for 5 seconds. The PPS module conducts tests on the PPS components and circuits while the 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 diagnostic trouble code (DTC), default the PPS to the OFF state, and communicate with the SDM that a DTC has been set. The SDM will request the IPC to turn the AIR BAG indicator ON to notify the driver of a PPS malfunction.

Schematic Reference

SIR Schematics

Connector End View Reference

SIR Connector End Views

Description and Operation

SIR System Description and Operation

Electrical Information Reference

Scan Tool Reference

With the passenger seat occupied and unoccupied the inflatable restraint passenger air bag on/off indicator should switch states within 5 seconds.

Important: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected.

1. Ignition OFF, disconnect the harness connector at the inflatable restraint passenger air bag on/off indicator.
2. Ignition OFF, test for less then 1 ohm of resistance between the ground circuit terminal 2 and ground.

⇒	If greater then the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, verify a test lamp illuminates between the ignition circuit terminal 4 and ground.

⇒	If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, test or replace the inflatable restraint passenger air bag on/off indicator.

4. Connect a test lamp between the control circuit terminal 3 and the ignition circuit terminal 4.
5. With the passenger seat occupied and unoccupied test lamp should switch states within 5 seconds.

⇒	If the test lamp is always on, test the control circuit for a short to ground. If all circuits test normal replace the PPS module.

⇒	If the test lamp is always off, test the control circuit for a short to voltage or an open/high resistance. If all circuits test normal replace the PPS module.

6. Connect a test lamp between the control circuit terminal 1 and the ignition circuit terminal 4.
7. With the passenger seat occupied and unoccupied test lamp should switch states within 5 seconds.

⇒	If the test lamp is always on, test the control circuit for a short to ground. If all circuits test normal replace the PPS module.

⇒	If the test lamp is always off, test the control circuit for a short to voltage or an open/high resistance. If all circuits test normal replace the PPS module.

8. If all circuits test normal, replace the inflatable restraint passenger air bag on/off indicator.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.