Passenger Presence System Indicator Circuit Malfunction
Passenger Presence System Indicator Circuit 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.
Diagnostic Fault Information
Circuit/System Description
The passenger air bag ON/OFF indicators are used to notify the driver when the passenger presence system has enabled or disabled the I/P inflator module. When the ignition is turned ON, the ignition voltage is supplied to the passenger presence system module. When the sensing and diagnostic module (SDM) receives the appropriate serial data message from the passenger presence system the SDM will then provide voltage to the appropriate indicator.
Reference Information
Schematic Reference
SIR Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
SIR System Description and Operation
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
NOTE: The ON and OFF indicators for the passenger airbag cannot work as intended if there are also supplemental airbag DTCs. Repair all supplemental airbag DTCs before continuing with this fault diagnosis.
1. Ignition ON, with the passenger seat unoccupied, verify the scan tool Passenger Seat Occupancy Status parameter is Empty Seat.
2. With the passenger seat unoccupied, verify the passenger air bag OFF indicator is illuminated.
3. With the passenger seat occupied, verify the scan tool Passenger Seat Occupancy Status parameter is Occupied.
4. With the passenger seat occupied, verify the passenger air bag ON indicator is illuminated.
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.
- Inflatable restraint passenger air bag on/off indicator.
- Inflatable restraint passenger air bag on/off indicator wiring harness.
1. Ignition OFF, disconnect the X1 harness connector at the center console multifunction switch.
2. Test for less than 1 Ohm between the ground circuit terminal 2 and ground.
3. If greater than the specified range, test the ground circuit for an open/high resistance.
4. Ignition ON, with the passenger seat occupied, verify that a test lamp does not illuminate between the control circuit terminal 3 and ground.
5. If the test lamp is illuminated, test the control circuit for a short to voltage. If the circuit tests normal, replace the SDM
6. With the passenger seat unoccupied, verify that a test lamp illuminates between the control circuit terminal 3 and ground.
7. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal replace the SDM.
8. With the passenger seat unoccupied verify that a test lamp does not illuminate between the control circuit terminal 1 and ground.
9. If the test lamp is illuminated, test the control circuit for a short to voltage. If the circuit tests normal replace the SDM.
10. With the passenger seat occupied verify that a test lamp illuminates between the control circuit terminal 1 and ground.
11. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal replace the SDM.
12. If all circuits test normal, replace the center console multifunction switch.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for SDM replacement, setup, and programming