Pinpoint Test

CHECK THE CONNECTORS FOR CORRECT LATCHING AND THE BUMPER WIRING HARNESS FOR DAMAGE
1. Inspect the Parking Aid Module (PAM) and sensor connectors for correct latching by pulling on the latched connector.
2. Inspect the bumper wiring harness for opens, shorts or corrosion.
- Are the connectors correctly latched and the bumper wiring harness OK?
- Yes: GO to 2 on page 2.
- No: Correctly LATCH the connectors or REPAIR or INSTALL a new bumper wiring harness.
CHECK THE LEFT OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
1. Ignition OFF.
2. Disconnect: Left Outer Parking Aid Sensor.
3. Ignition ON.
4. NOTE: It is normal for Diagnostic Trouble Code (DTC) B1B48:14 to set when carrying out this step. It should be ignored.
Using a scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the on-demand self-test.
- Is Diagnostic Trouble Code (DTC) B1B58:11 still present?
- Yes: GO to 3 on page 2.
- No: INSTALL a new left outer parking aid sensor. REFER to Parking Aid Sensor .
CHECK THE RIGHT OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
1. Ignition OFF.
2. Disconnect: Right Outer Parking Aid Sensor.
3. Ignition ON.
4. NOTE: It is normal for Diagnostic Trouble Code (DTC) B1B44:14 to set when carrying out this step. It should be ignored.
Using a scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the on-demand self-test.
- Is Diagnostic Trouble Code (DTC) B1B58:11 still present?
- Yes: GO to 4 on page 2.
- No: INSTALL a new right outer parking aid sensor. REFER to Parking Aid Sensor .
CHECK THE LEFT INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
1. Ignition OFF.
2. Disconnect: Left Inner Parking Aid Sensor.
3. Ignition ON.
4. NOTE: It is normal for Diagnostic Trouble Code (DTC) B1B50:14 to set when carrying out this step. It should be ignored.
Using a scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the on-demand self-test.
- Is Diagnostic Trouble Code (DTC) B1B58:11 still present?
- Yes: GO to 5 on page 3.
- No: INSTALL a new left inner parking aid sensor. REFER to Parking Aid Sensor .
CHECK THE RIGHT INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
1. Ignition OFF.
2. Disconnect: Right Inner Parking Aid Sensor.
3. Ignition ON.
4. NOTE: It is normal for Diagnostic Trouble Code (DTC) B1B46:14 to set when carrying out this step. It should be ignored.
Using a scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the on-demand self-test.
- Is Diagnostic Trouble Code (DTC) B1B58:11 still present?
- Yes: GO to 6 on page 3.
- No: INSTALL a new right inner parking aid sensor. REFER to Parking Aid Sensor .
CHECK THE PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND
1. Ignition OFF.
2. Disconnect: Parking Aid Module (PAM).
3. Measure:
Fig 1: Checking Parking Aid Sensor Voltage Supply Circuit For Short To Ground
Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes: GO to 7 on page 4.
- No: REPAIR the circuit.
CHECK THE PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT AND GROUND CIRCUIT FOR A SHORT TOGETHER
1. Measure:
Fig 2: Checking Parking Aid Sensor Voltage Supply Circuit And Ground Circuit For Short Together
Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes: GO to 8 on page 4.
- No: REPAIR the circuits.
CHECK FOR CORRECT Parking Aid Module (PAM) OPERATION

Disconnect and inspect the Parking Aid Module (PAM) connector.
Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
Reconnect the Parking Aid Module (PAM) connector. Make sure it seats and latches correctly.
Operate the system and determine if the concern is still present.

Is the concern still present?

Yes: CHECK On-Line Automotive Service Information System (OASIS) for any applicable Technical Service Bulletins (TSBs). If a Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new Parking Aid Module (PAM). REFER to PARKING AID MODULE (PAM) .
No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.