Passive Anti-Theft System (PATS) - Diagnostic Trouble Codes (DTC) Descriptions
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
PASSIVE ANTI-THEFT SYSTEM (PATS) - DIAGNOSTIC TROUBLE CODES (DTC) DESCRIPTIONS
| DTC | Expanded Description |
|---|---|
| B1213 | Less than 2 keys programmed to the PATS control. Erase the continuous codes, cycle the ignition, then carry out the self-test again. If DTCs B1232, B1600, B1601, B1602, or B1681 are present, they must be serviced first. If DTC B1213 is the only self-test DTC, program the PATS keys. |
| B1600 | No PATS key read by the PCM. This can be caused by the PATS key, the PATS transceiver, the circuits between the PATS transceiver and the PCM, and/or the PCM. |
| B1601 | Unprogrammed PATS key. There is no issue with the PATS key itself, but the key must be programmed into the PATS memory (unless the maximum number of keys are already programmed). Refer to KEY PROGRAMMING USING TWO PROGRAMMED KEYS . No parts need to be replaced for this DTC. |
| B1602 | Partial PATS key was read. Make sure that an approved PATS key (Ford, Rotunda, ILCO, Strattec, HUF, or Valeo) is being used. Large metal objects, additional PATS keys, or devices used to purchase gasoline located on the customer's key ring can cause interference. Instruct the customer to keep such items from touching the ignition key during engine start. It is not necessary to remove the objects from the customer's key ring. Remote starter equipment can also cause this DTC. Remove any remote starter equipment close to the transceiver before conducting further diagnosis. This DTC can be caused by the PATS key or the PATS transceiver. |
| B1681 | PATS transceiver module signal is not received by the PCM. This DTC can be caused by the circuits between the PATS transceiver and the PCM, the PATS transceiver, or the PCM. Follow the pinpoint test for diagnosis. This can also be caused by using the incorrect transceiver part number. Make sure that the correct transceiver part number is being used. |
| B2103 | Transceiver module antenna failure. Replace the transceiver module. |
| B2431 | The ignition key was not programmed. Make sure that the correct key is being used. |