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• | 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. |
The security indicator is controlled by the IP fuse block based on commands from the immobiliser system or the content theft deterrent system. With the ignition OFF, the security indicator is commanded by the CTD system. With the ignition ON, the security indicator is commanded by the immobilizer system. The security indicator is located in the instrument panel cluster and is supplied B+ at all times. When the immobiliser or content theft deterrent system requests the indicator be commanded ON, the IP fuse block grounds the security indicator control circuit, illuminating the indicator.
Theft Deterrent System Schematics
Content Theft Deterrent (CTD) Description and Operation
Inflatable Restraint Sensing and Diagnostic Module Scan Tool Information for scan tool information
⇒ | If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. |
⇒ | If the indicator is not illuminated, test the control circuit for an open/high resistance. If the circuit tests normal, replace the IPC. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for instrument panel cluster replacement, setup, and programming
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