Pinpoint Test B : B129C:14, B129D:14

WARNING: This page is about a different car, the 2015 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

B1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PARKING AID MODULE (PAM) SELF-TEST

Using a scan tool, perform the Parking Aid Module (PAM) self-test.

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

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

Yes

GO to B2

No	For DTC B129C:14 or B129D:14, GO to B3 For all other Parking Aid Module (PAM) Diagnostic Trouble Codes (DTCs), REFER to: Parking Aid .

B2 CHECK THE FRONT BUMPER WIRING HARNESS
- Inspect the front bumper wiring harness for opens, shorts, grounds or corrosion.
Is the front bumper wiring harness OK?

Yes GO to B3

No REPAIR or INSTALL a new front bumper wiring harness.

B3 CHECK THE SENSOR CIRCUITS FOR OPENS

Ignition OFF.

For DTC B129C:14, Disconnect: LH Front Active Park Assist Sensor.

For DTC B129D:14, Disconnect: RH Front Active Park Assist Sensor.

Disconnect BCM C2280C .

For DTC B129C:14, measure:

Positive Lead	Measurement / Action	Negative Lead
C2280C-7	Courtesy of FORD MOTOR COMPANY	C1607-1
C2280C-11	Courtesy of FORD MOTOR COMPANY	C1607-2
C2280C-35	Courtesy of FORD MOTOR COMPANY	C1607-3

For DTC B129D:14, measure:

Positive Lead	Measurement / Action	Negative Lead
C2280C-7	Courtesy of FORD MOTOR COMPANY	C1608-1
C2280C-1	Courtesy of FORD MOTOR COMPANY	C1608-2
C2280C-35	Courtesy of FORD MOTOR COMPANY	C1608-3

Are the resistances less than 3 ohms?

Yes

GO to B4

No	REPAIR the affected circuit(s).

B4 CHECK THE SENSOR SIGNAL RETURN CIRCUIT FOR A SHORT TO GROUND

For DTC B129C:14, measure:

Positive Lead	Measurement / Action	Negative Lead
C1607-2	Courtesy of FORD MOTOR COMPANY	Ground

For DTC B129D:14, measure:

Positive Lead	Measurement / Action	Negative Lead
C1608-2	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to B5

No	REPAIR the circuit.

B5 CHECK THE ACTIVE PARK ASSIST SENSOR
- Connect BCM C2280C .
- Install a known good active park assist sensor for the suspect sensor. Refer to: Front Active Park Assist Sensor LH .
- Ignition ON.
- Using a diagnostic scan tool, clear the Parking Aid Module (PAM) Diagnostic Trouble Codes (DTCs).
- Perform the Parking Aid Module (PAM) self-test.
Is DTC B129C:14 or B129D:14 still present?

Yes GO to B6

No INSTALL a new active park assist sensor for the one in question. Refer to: Front Active Park Assist Sensor LH .

B6 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all BCM 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 BCM 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 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, Refer to BCM Hardware Testing (Hybrid/Energi) .

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.