Pinpoint Test C : B1B58:11

C1 CHECK THE REAR BUMPER WIRING HARNESS
- Inspect the rear bumper wiring harness for opens, shorts, grounds, or corrosion.
Is the rear bumper wiring harness OK?

Yes GO to C2

No REPAIR or INSTALL a new rear bumper wiring harness.

C2 CHECK THE LHR (LEFT-HAND REAR) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: LHR Outer Parking Aid Sensor connector C4011 .
- Ignition ON.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B58:11 still present?

Yes GO to C3

No INSTALL a new LHR outer parking aid sensor. REFER to: Rear Parking Aid Sensor .

C3 CHECK THE LHR (LEFT-HAND REAR) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: LHR Inner Parking Aid Sensor connector C4012 .
- Ignition ON.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B58:11 still present?

Yes GO to C4

No INSTALL a new LHR inner parking aid sensor. REFER to: Rear Parking Aid Sensor .

C4 CHECK THE RHR (RIGHT-HAND REAR) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: RHR Outer Parking Aid Sensor connector C1431 .
- Ignition ON.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B58:11 still present?

Yes GO to C5

No INSTALL a new RHR outer parking aid sensor. REFER to: Rear Parking Aid Sensor .

C5 CHECK THE RHR (RIGHT-HAND REAR) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: RHR Inner Parking Aid Sensor connector C4228 .
- Ignition ON.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B58:11 still present?

Yes GO to C6

No INSTALL a new RHR inner parking aid sensor. REFER to: Rear Parking Aid Sensor .

C6 CHECK THE PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect: PAM connector C4014C.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C4014C-11	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to C7

No	REPAIR the circuit.

C7 CHECK THE PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT AND GROUND CIRCUIT FOR A SHORT TOGETHER

Measure:

Positive Lead	Measurement / Action	Negative Lead
C4014C-11	Courtesy of FORD MOTOR COMPANY	C4014C-8

Is the resistance greater than 10, 000 ohms?

Yes

GO to C8

No	REPAIR the circuit in question.

C8 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all PAM and related in-line connectors.

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 PAM and related in-line connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSB addresses this concern, INSTALL a new PAM. REFER to: Parking Assist Control Module (PAM) - 4-Door . REFER to: Parking Assist Control Module (PAM) - 5-Door .

No	The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.