Pinpoint Test E: DTC B1299
WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
- E1 CHECK THE BUMPER WIRING HARNESS
- Inspect the bumper wiring harness for opens, shorts, grounds, or corrosion.
- Is the bumper wiring harness OK?
- Yes: GO to E2.
- No: REPAIR or INSTALL a new bumper wiring harness. CLEAR the DTCs. TEST the system for normal operation.
- E2 CHECK THE LH OUTER SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: Parking Aid Sensor C4009.
- Ignition ON.
- Clear the DTCs. Repeat the on-demand self-test.
- Is DTC B1299 still present?
- Yes: GO to E3.
- No: INSTALL a new LH outer parking aid sensor. Refer to Removal and Installation . CLEAR the DTCs. TEST the system for normal operation.
- E3 CHECK THE RH OUTER SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: Parking Aid Sensor C4011.
- Ignition ON.
- Clear the DTCs. Repeat the on-demand self-test.
- Is DTC B1299 still present?
- Yes: GO to E4.
- No: INSTALL a new RH outer parking aid sensor. Refer to Removal and Installation . CLEAR the DTCs. TEST the system for normal operation.
- E4 CHECK THE CENTER SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: Parking Aid Sensor C4228.
- Ignition ON.
- Clear the DTCs. Repeat the on-demand self-test.
- Is DTC B1299 still present?
- Yes: GO to E5.
- No: INSTALL a new center parking aid sensor. Refer to Removal and Installation . CLEAR the DTCs. TEST the system for normal operation.
- E5 CHECK PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Disconnect: PAM
C4014.NOTE: The parking aid sensors should remain disconnected in this step.
- Measure the resistance between the PAM C4014-9, circuit LMP07 (BU/WH), harness side and ground.
- Is the resistance greater than 10,000 ohms?
- Yes: GO to E6.
- No: REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.
- E6 CHECK THE PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO THE PARKING AID SENSOR GROUND CIRCUIT
- Ignition OFF.
- Measure the resistance between the PAM C4014-9, circuit LMP07 (BU/WH), harness side and the PAM C4014-12, circuit RMP07 (GN/WH).
- Is the resistance greater than 10,000 ohms?
- Yes: GO to E7.
- No: REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.
- E7 CHECK FOR CORRECT PAM OPERATION
- Disconnect the PAM connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the PAM connector and make sure it seats correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
- Yes: INSTALL a new PAM . Refer to Removal and Installation . TEST the system for normal operation.
- No: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.