Passive Anti-Theft System (PATS)

INSPECTION AND VERIFICATION

1. Verify the customer concern.

Visual Inspection Chart:

2. Visually inspect for obvious signs of mechanical and electrical damage.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident, connect the diagnostic tool to the data link connector and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
- Check that the program card is correctly installed.
- Check the connections to the vehicle.
- Check the ignition switch position.
5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual.
6. Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with:
- SCP+, SCP-, or UBP circuits fault; all ECUs no response/not equipped, refer to Information Bus (Module Communications Network).
- NO RESP/NOT EQUIP for PCM, refer to Fuel Delivery and Air Induction.
- SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the PCM.
7. If the DTCs retrieved are related to the concern, go to the (PCM) Diagnostic Trouble Code (DTC) Index to continue diagnostics. PCM Diagnostic Trouble Code (DTC) Index
8. If no DTCs related to the concern are retrieved, GO to Symptom Chart to continue diagnostics. Passive Anti-Theft System (PATS)