Pinpoint Test D : DTC (Diagnostic Trouble Code) B13F3:12, DTC (Diagnostic Trouble Code) B13F4:12

WARNING: This page is about a different car, the 2017 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

D1 CHECK 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 rear parking aid sensor Diagnostic Trouble Codes (DTCs) recorded?

Yes

GO to D2

No	* For DTC B13F3:12 or DTC B13F4:12, GO to D3 * For all other PAM Diagnostic Trouble Codes (DTCs), REFER to PAM DTC Chart .

D2 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 D3

No REPAIR or INSTALL a new rear bumper wiring harness.

D3 CHECK THE SENSOR SIGNAL RETURN CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect suspect rear active park assist sensor(s) C4420 (DTC B13F3:12) or C4421 (DTC B13F4:12).

Disconnect BCM C2280E .

Ignition ON.

Measure:

DTC B13F3:12

Positive Lead	Measurement / Action	Negative Lead
C4420-2	Courtesy of FORD MOTOR COMPANY	Ground

DTC B13F4:12

Positive Lead	Measurement / Action	Negative Lead
C4421-2	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

GO to D4

D4 CHECK THE SENSOR VOLTAGE SUPPLY AND SIGNAL RETURN CIRCUITS FOR A SHORT TOGETHER

Ignition OFF.

Measure:

DTC B13F3:12

Positive Lead	Measurement / Action	Negative Lead
C4420-2	Courtesy of FORD MOTOR COMPANY	C4420-1

DTC B13F4:12

Positive Lead	Measurement / Action	Negative Lead
C4421-2	Courtesy of FORD MOTOR COMPANY	C4421-1

Is the resistance greater than 10, 000 ohms?

Yes

GO to D5

No	REPAIR the affected circuits.

D5 CHECK THE REAR ACTIVE PARK ASSIST SENSOR
- Connect BCM C2280E .
- Ignition ON.
- Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B13F3:12 or DTC B13F4:12 still present?

Yes GO to D6

No INSTALL a new rear active park assist sensor for the one in question. REFER to: Rear Active Park Assist Sensors .

D6 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all BCM connectors 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 BCM connectors 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 Technical Service Bulletins (TSBs) address this concern, Refer to BCM Hardware Testing -- Fusion Hybrid/Energi

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