Pinpoint Test B: DTC B10D7:87 Or B10D7:8F

WARNING: This page is about a different car, the 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Large metallic objects or electronic devices on the key ring that can be used to purchase gasoline or similar items, or a second key on the same key ring as the PATS key can cause vehicle starting concerns and record DTCs under certain conditions. If a fault cannot be identified, examine the customer key ring for such objects or devices. If present, inform the customer that they need to keep these objects from touching the PATS key while starting the engine. These objects and devices cannot damage the PATS key, but can cause a momentary concern if they are too close to the key during engine start. If a concern occurs, turn the ignition switch off and restart the engine with all other objects on the key ring held away from the ignition key.

NOTE: Aftermarket or dealer-installed remote start systems may adversely affect the PATS operation. Disconnect these systems before diagnosing any PATS concerns.

B1 CHECK THE PATS KEYS
- Check that the correct PATS keys are used with the vehicle. Compare the Integrated Keyhead Transmitters (IKTs) with the one shown in Anti-Theft in the Description and Operation portion of this service information.
  NOTE: The keys must have "HA" or "SA" stamped on the key blade.
- Are the correct keys being used?
- Yes: GO to B2.
- No: OBTAIN the correct key(s) for the vehicle. PROGRAM the new key(s). REFER to KEY PROGRAMMING - PROGRAM A KEY USING TWO PROGRAMMED KEYS or Key Programming Using Diagnostic Equipment .. CLEAR the DTCs. REPEAT the self-test.
B2 ISOLATE THE PATS KEYS
- Place a PATS key in the ignition and turn to the RUN position.
  NOTE: Follow this procedure using both PATS keys (using one at a time).
- Enter the following diagnostic mode on the scan tool: Clear BCM Continuous DTCs.
- Cycle the ignition from RUN to OFF and then back to the RUN position.
- Enter the following diagnostic mode on the scan tool: BCM Self-Test.
- Is DTC B10D7:87 or B10D7:8F retrieved for both keys?
- Yes: INSTALL a new PATS transceiver. REFER to PASSIVE ANTI-THEFT SYSTEM (PATS) TRANSCEIVER .. CLEAR the DTCs. REPEAT the self-test.
- No: DISCARD the key in question and PROGRAM a new key. REFER to KEY PROGRAMMING - PROGRAM A KEY USING TWO PROGRAMMED KEYS or Key Programming Using Diagnostic Equipment .. CLEAR the DTCs. REPEAT the self-test.