Passenger Presence System Indicator Circuit Malfunction

Passenger Presence System Indicator Circuit Malfunction

Diagnostic Instructions
^ Perform the [Diagnostic System Check - Vehicle Diagnostic Information] prior to using this diagnostic procedure. Diagnostic System Check - Vehicle Diagnostic Information
^ Review [Strategy Based Diagnosis] for an overview of the diagnostic approach. Strategy Based Diagnosis
^ [Diagnostic Procedure Instructions - Vehicle Diagnostic Information] provides an overview of each diagnostic category. Diagnostic Procedure Instructions - Vehicle Diagnostic Information

Circuit/System Description
The PASSENGER AIR BAG ON/OFF indicators 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 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.

Circuit/System Verification
With the passenger seat occupied and unoccupied the inflatable restraint passenger air bag ON/OFF indicator should switch states within 5 seconds.

Circuit/System Testing

NOTE:
When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
^ Passenger air bag ON/OFF indicator.
^ Passenger air bag ON/OFF indicator wiring harness.

1. Ignition OFF, disconnect the harness connector at the passenger air bag ON/OFF indicator.
2. Test for less than 1 ohm between the ground circuit terminal 2 and ground.
^ If greater than 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.

4. Connect a test lamp between the control circuit terminal 1 and the ignition circuit terminal 4.
5. With the passenger seat occupied and unoccupied the test lamp should switch states within 5 seconds.
^ If the test lamp does not change state, test the control circuit for an open, short to ground, or short to voltage. If all circuits test normal replace the IPC.

6. Connect a test lamp between the control circuit terminal 3 and the ignition circuit terminal 4.
7. With the passenger seat occupied and unoccupied the test lamp should switch states within 5 seconds.
^ If the test lamp does not change state, test the control circuit for an open, short to ground, or short to voltage. If all circuits test normal replace the IPC.

8. If all circuits test normal, replace the passenger air bag ON/OFF indicator.

Repair Instructions
Perform the [Diagnostic Repair Verification - Vehicle Diagnostic Information] after completing the diagnostic procedure. Diagnostic Repair Verification - Vehicle Diagnostic Information