Pinpoint Tests AF: The Anti-Theft Indicator Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

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

Normal Operation

The Instrument Cluster (IC) receives the anti-theft status from the PCM over the High Speed Controller Area Network (HS-CAN)communication bus lines. The anti-theft indicator proves out for 3 seconds when the ignition switch is turned to the RUN or the START position. If there is a Passive Anti-Theft System (PATS) concern, the indicator either flashes rapidly or glows steadily (for more than 3 seconds) when the ignition switch is turned to the RUN or START position. The PATSPATS also flashes the anti-theft indicator every 2 seconds at ignition OFF to act as a visual theft deterrent.

This pinpoint test is intended to diagnose the following:

- PCM
- IC



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

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AF1 RETRIEVE THE RECORDED DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PCM SELF-TESTS


- Retrieve the recorded DTCs from the PCM continuous and on-demand self-tests.
- Are any DTCs retrieved?

Yes
If there are any PATS DTCs present, REFER to Antitheft and Alarm Systems.

For all other PCM DTCs, REFER to Computers and Control Systems Information.

No
GO to AF2.

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AF2 CARRY OUT THE IC INDICATOR LAMP CONTROL ACTIVE COMMAND


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IC DataLogger.
- Select the IC anti-theft indicator (THFTLMP) active command on then off again while monitoring the anti-theft indicator.
- Does the anti-theft indicator turn on when commanded on and turn off when commanded off?

Yes
INSTALL a new PCM. TEST the system for normal operation.

No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.

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