Pinpoint Test H : B1B36:14, B1B38:14, B1B40:14, B1B42:14

H1 RETRIEVE THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST

Ignition ON.

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

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

Yes

GO to H2

No	For DTC B1B36:14, B1B38:14, B1B40:14 or B1B42:14, GO to H3 For all other Diagnostic Trouble Codes (DTCs), REFER to PAM DTC Chart .

H2 CHECK THE FRONT BUMPER WIRING HARNESS
- Ignition OFF.
- Inspect the front bumper wiring harness for opens, shorts, grounds, or corrosion.
Is the front bumper wiring harness OK?

Yes GO to H3

No REPAIR or INSTALL a new front bumper wiring harness.

H3 CHECK THE FRONT PARKING AID SENSOR CIRCUITS FOR OPENS

Disconnect suspect parking aid sensor(s) C1428 , C1429 , C1430 and/or C1431 .

Disconnect PAM C9071B .

Measure:

DTC B1B36:14

Positive Lead	Measurement / Action	Negative Lead
C4014B-2	Courtesy of FORD MOTOR COMPANY	C1431-1
C4014B-8	Courtesy of FORD MOTOR COMPANY	C1431-2
C4014B-1	Courtesy of FORD MOTOR COMPANY	C1431-3

DTC B1B38:14

Positive Lead	Measurement / Action	Negative Lead
C4014B-2	Courtesy of FORD MOTOR COMPANY	C1430-1
C4014B-7	Courtesy of FORD MOTOR COMPANY	C1430-2
C4014B-1	Courtesy of FORD MOTOR COMPANY	C1430-3

DTC B1B40:14

Positive Lead	Measurement / Action	Negative Lead
C4014B-2	Courtesy of FORD MOTOR COMPANY	C1428-1
C4014B-5	Courtesy of FORD MOTOR COMPANY	C1428-2
C4014B-1	Courtesy of FORD MOTOR COMPANY	C1428-3

DTC B1B42:14

Positive Lead	Measurement / Action	Negative Lead
C4014B-2	Courtesy of FORD MOTOR COMPANY	C1429-1
C4014B-6	Courtesy of FORD MOTOR COMPANY	C1429-2
C4014B-1	Courtesy of FORD MOTOR COMPANY	C1429-3

Are the resistances less than 3 ohms for the suspect sensor circuit(s)?

Yes

GO to H4

No	REPAIR the circuit(s) in question.

H4 CHECK THE FRONT PARKING AID SENSOR CIRCUITS FOR SHORTS TO GROUND

Measure:

DTC B1B36:14

Positive Lead	Measurement / Action	Negative Lead
C1431-2	Courtesy of FORD MOTOR COMPANY	Ground

DTC B1B38:14

Positive Lead	Measurement / Action	Negative Lead
C1430-2	Courtesy of FORD MOTOR COMPANY	Ground

DTC B1B40:14

Positive Lead	Measurement / Action	Negative Lead
C1428-2	Courtesy of FORD MOTOR COMPANY	Ground

DTC B1B42:14

Positive Lead	Measurement / Action	Negative Lead
C1429-2	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances greater than 10, 000 ohms for the suspect sensor circuit(s) in question?

Yes

If all of the parking aid sensors recorded Diagnostic Trouble Codes (DTCs), GO to H5. 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: Front Parking Aid Sensor - Vehicles With: Rear Parking Aid .

No	REPAIR the circuit(s) in question.

H5 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the PAM 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 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 TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PAM. Refer to: Parking Assist Control Module (PAM) - Short Wheelbase . Refer to: Parking Assist Control Module (PAM) - Long Wheelbase .

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.