Pinpoint Test C : B1B44:14, B1B46:14, B1B48:14, B1B50:14

C1 RETRIEVE THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PAM self-test.

Check the PAM Diagnostic Trouble Codes (DTCs) from the self-test.

Are multiple parking aid sensor Diagnostic Trouble Codes (DTCs) recorded?

Yes

GO to C2

No	For DTC B1B44:14, B1B46:14, B1B48:14, or B1B50:14 GO to C3 For all other Diagnostic Trouble Codes (DTCs), REFER to DTC Charts .

C2 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 C3

No REPAIR or INSTALL a new bumper wiring harness.

C3 CHECK THE SENSOR CIRCUITRY FOR OPENS

Ignition OFF.

Disconnect: Suspect Parking Aid Sensor(s).

Disconnect: PAM C4014C.

Measure:

DTC B1B44:14

Positive Lead	Measurement / Action	Negative Lead
C4014C-11	Courtesy of FORD MOTOR COMPANY	C4011-1
C4014C-4	Courtesy of FORD MOTOR COMPANY	C4011-2
C4014C-8	Courtesy of FORD MOTOR COMPANY	C4011-3

Measure:

DTC B1B46:14

Positive Lead	Measurement / Action	Negative Lead
C4014C-11	Courtesy of FORD MOTOR COMPANY	C4012-1
C4014C-2	Courtesy of FORD MOTOR COMPANY	C4012-2
C4014C-8	Courtesy of FORD MOTOR COMPANY	C4012-3

Measure:

DTC B1B48:14

Positive Lead	Measurement / Action	Negative Lead
C4014C-11	Courtesy of FORD MOTOR COMPANY	C4009-1
C4014C-5	Courtesy of FORD MOTOR COMPANY	C4009-2
C4014C-8	Courtesy of FORD MOTOR COMPANY	C4009-3

Measure:

DTC B1B50:14

Positive Lead	Measurement / Action	Negative Lead
C4014C-11	Courtesy of FORD MOTOR COMPANY	C4228-1
C4014C-3	Courtesy of FORD MOTOR COMPANY	C4228-2
C4014C-8	Courtesy of FORD MOTOR COMPANY	C4228-3

Is the resistance for the suspect sensor circuit less than 3 ohms?

Yes

GO to C4

No	REPAIR the open circuit.

C4 CHECK THE SENSOR CIRCUITRY FOR SHORTS TO GROUND

Measure:

DTC B1B44:14

Positive Lead	Measurement / Action	Negative Lead
C4011-2	Courtesy of FORD MOTOR COMPANY	Ground

Measure:

DTC B1B46:14

Positive Lead	Measurement / Action	Negative Lead
C4012-2	Courtesy of FORD MOTOR COMPANY	Ground

Measure:

DTC B1B48:14

Positive Lead	Measurement / Action	Negative Lead
C4009-2	Courtesy of FORD MOTOR COMPANY	Ground

Measure:

DTC B1B50:14

Positive Lead	Measurement / Action	Negative Lead
C4228-2	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms for the sensor circuit in question?

Yes	If all of the parking aid sensors recorded Diagnostic Trouble Codes (DTCs), GO to C5 If one or more (but not all) parking aid sensor(s) recorded Diagnostic Trouble Codes (DTCs), INSTALL a new sensor(s) for the one(s) in question. REFER to: Rear Parking Aid Sensor .

No	REPAIR the shorted circuit.

C5 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) - 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.