Pinpoint Test AH: The Anti-Theft Indicator Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

Pinpoint Test AH: The Anti-Theft Indicator Is Never/Always On

Normal Operation

The Instrument Panel Cluster (IPC) interacts with the PCM and controls the Passive Anti-Theft System (PATS) function. The IPC controls the anti-theft indicator based upon the status of the PATS.

The anti-theft indicator proves out for 3 seconds when the key is turned to the ON or START position. If there is a PATS concern, the anti-theft indicator either flashes rapidly or glows steadily (for more than 3 seconds) when the ignition is switched to the ON or the START mode. The PATS also flashes the anti-theft indicator every 2 seconds at ignition off to act as a visual theft deterrent for all vehicles.

This pinpoint test is intended to diagnose the following:

- PATS
- IPC

PINPOINT TEST AH: THE ANTI-THEFT INDICATOR IS NEVER/ALWAYS ON

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AH1 CARRY OUT THE IPC ANTI-THEFT INDICATOR ACTIVE COMMAND USING THE SCAN TOOL


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IPC DataLogger.
- Select the IPC anti-theft indicator (THEFT_LMP) active command. Command the anti-theft indicator on and off while observing the anti-theft indicator.
- Does the anti-theft indicator illuminate when commanded on, and turn off when commanded off?

Yes
GO to AH2.

No
INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) Service and Repair. TEST the system for normal operation.

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AH2 RETRIEVE THE RECORDED DTCs FROM THE CONTINUOUS IPC SELF-TEST


- Check for recorded IPC DTCs from the continuous self-test.
- Are any PATS-related DTCs recorded?

Yes
REFER to Anti-Theft - Passive Anti-Theft System (PATS) Testing and Inspection.

No
INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) Service and Repair. TEST the system for normal operation.

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