Circuit/System Testing
WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
- PPS module
- SDM module
- PPS wiring harness connector
- SDM wiring harness connector
- Ignition OFF, disconnect the harness connector at the PPS and the SDM.
- Test for less than 1 V between the occupant sensor serial data circuit terminal 60 and ground.
- If greater than the specified range, test the serial data circuit for a short to voltage.
- Test for infinite resistance between the occupant sensor serial data circuit terminal 60 and ground.
- If less than the specified value, test the serial data circuit for a short to ground.
- Test for less than 1 Ω between the SDM occupant sensor serial data circuit terminal 60 and the PPS occupant sensor serial data circuit terminal 1.
- If greater than the specified range, test the serial data circuit for an open/high resistance.
- Reconnect the harness connectors.
- Ignition ON, clear DTCs, refer to Passenger Presence System Displaying Code Procedure (Base) .
- If DTC B1000 is set in the SDM, replace the SDM.
- Verify that DTC 4061-4065 is not set.
- If DTC is still set, replace the PPS module.