Passive Anti-Theft System (PATS) - Inspection And Verification
WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Large metallic objects, a second passive anti-theft system (PATS) key on the same key ring as the PATS key or electronic devices on the key chain that can be used to purchase gasoline or similar items
- Key lock cylinder
- PATS key
- Use of a non-PATS key
- Smart junction box (SJB) fuse 19 (10A)
- Bussed electrical center (BEC) fuse 64 (20A)
- PATS transceiver module
- Key switch
- Loose or corroded connection(s)
- Powertrain control module (PCM)
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- 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.
- If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
- Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
- SCP circuits fault; all electronic control units no response/not equipped, refer to MODULE COMMUNICATIONS NETWORK .
- No response/not equipped for PCM, refer to MODULE COMMUNICATIONS NETWORK .
- System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the self-test diagnostics for the PCM.
- If the DTCs retrieved are related to the concern, go to the POWERTRAIN CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX to continue diagnostics.
- If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .