For 1990-2009 cars only
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. |
Circuit/System Description
The main immobilizer function is performed as an interaction between several modules. The process that determines whether the engine may be engaged or not consists of several steps. If the engine start will be disabled a DTC is set and the indicator in the instrument cluster will be turned ON.
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Immobilizer Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
- Perform the instrument panel special functions All Indicators test using a scan tool. Command the instrument panel lamps ON and OFF. Verify the immobilizer indicator icon turns ON and OFF.
| ⇒ | Perform the instrument panel special functions All Indicators test using a scan tool. Command the instrument panel lamps ON and OFF. Verify the security indicator icon turns ON and OFF. If the security icon does not turn ON and OFF, replace the P16 Instrument Panel Cluster (IPC). |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for instrument cluster replacement, setup, and programming
