Pinpoint Test D: The Parking Aid Disable Switch Is Inoperative

D1 CHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
- Ignition ON.
- Using a diagnostic scan tool, retrieve the PAM Diagnostic Trouble Codes (DTCs).
Is DTC B1303:11 present?

Yes GO to D2

No GO to D4

D2 CHECK THE PARKING AID DISABLE SWITCH FOR AN INTERNAL SHORT
- Disconnect: parking aid disable switch C3258
- Ignition ON.
- Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
- Perform the PAM self-test.
Is DTC B1303:11 present?

Yes GO to D3

No INSTALL a new parking aid disable switch.

D3 CHECK THE PARKING AID DISABLE SWITCH SIGNAL CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect BCM C2280G.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3258-8	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to D7

No	REPAIR the circuit.

D4 CHECK THE PARKING AID DISABLE CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect the parking aid disable switch C3258.

Connect a fused jumper wire between:

Positive Lead	Measurement / Action	Negative Lead
C3258-8	Courtesy of FORD MOTOR COMPANY	C3258-1

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

Is DTC B1303:11 present?

Yes	REMOVE the fused jumper wire. INSTALL a new parking aid disable switch.

No	REMOVE the fused jumper wire. GO to D5

D5 CHECK THE PARKING AID DISABLE SWITCH SIGNAL CIRCUIT FOR AN OPEN BETWEEN THE SWITCH AND THE BCM (BODY CONTROL MODULE)

Ignition OFF.

Disconnect BCM C2280G.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3258-8	Courtesy of FORD MOTOR COMPANY	C2280G-31

Is the resistance less than 3 ohms?

Yes

GO to D6

No	REPAIR the circuit.

D6 CHECK THE GROUND CIRCUIT TO THE PARKING AID SWITCH FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3258-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms?

Yes

GO to D7

No	Repair the circuit.

D7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all BCM 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 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, A guided routine is not applicable for this vehicle and market. Replace the component that was faulted through diagnosis.

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.