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 | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Rear Compartment Lid Ajar Switch Signal Circuit | 1 | 1 | 1 | -- |
Rear Compartment Lid Ajar Ground Circuit | -- | 1 | 1 | -- |
1. Door Ajar Malfunction | ||||
Circuit/System Description
The rear compartment lid ajar switch is normally open when the trunk is fully closed. When the trunk is open the rear compartment lid ajar switch contact is closed providing a path to ground. When the rear compartment lid ajar switch is closed, the rear compartment lid ajar switch signal to the rear integration module (RIM) is grounded. The RIM reports the switch status by sending a serial data message to the instrument panel cluster (IPC) indicating the trunk ajar status. The IPC displays TRUNK AJAR in the driver information center (DIC).
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Electrical Information Reference
Scan Tool Reference
Circuit/System Testing
- Ignition ON, scan tool installed and the rear compartment fully closed, verify the rear compartment lid ajar parameter in the rear integration module (RIM) Data List is Trunk Open.
- Ignition OFF, disconnect the harness connector at the rear compartment lid release actuator, verify the rear compartment lid ajar parameter in the rear integration module (RIM) Data List is Trunk Closed.
- If all circuits tests normal, replace the rear compartment lid release actuator.
| ⇒ | If not, replace the instrument panel cluster (IPC). |
| ⇒ | If no, test the rear compartment lid ajar switch signal circuit for a short to ground. If the circuit tests normal, replace the RIM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for the RIM or IPC replacement, setup and programming |
