Pinpoint Test K : The Parking Aid Switch Status Led (Light Emitting Diode) Is Inoperative Or Always On

K1 CHECK THE PAM (PARKING ASSIST CONTROL MODULE) CONTINUOUS AND ON-DEMAND DIAGNOSTIC TROUBLE CODES (DTCS)
- Ignition ON.
- Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
- Perform the PAM self-test.
Is DTC B1B54:11 or B1B54:12 still present?

Yes GO to K2

No If the LED is inoperative GO to K6 If the LED is always on GO to K4

K2 CHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) WITH THE PARKING AID SWITCH DISCONNECTED
- Ignition OFF.
- Disconnect: Parking aid switch C3258.
- Ignition ON.
- Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
- Perform the PAM self-test.
Is DTC B1B54:11 or B1B54:12 still present?

Yes GO to K3

No INSTALL a new parking aid switch.

K3 CHECK THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect: PAM C2280G.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280G-17	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to K4

No	REPAIR the circuit.

K4 CHECK THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: PAM C2280G.
- Connect: Parking aid switch C3258.
- Ignition ON.
Does the parking aid switch status LED continue to illuminate?

Yes GO to K5

No GO to K9

K5 CHECK FOR VOLTAGE ON THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT

Disconnect: Parking aid switch C3258.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3258-5	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

No	INSTALL a new parking aid switch.

K6 CHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) WITH THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT JUMPERED TO GROUND

Ignition OFF.

Disconnect: Parking aid switch C3258.

Connect a fused jumper wire between:

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

Ignition ON.

Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).

Perform the PAM self-test.

Is DTC B1B54:11 or B1B54:12 still present?

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

No	REMOVE the jumper wire. GO to K7

K7 CHECK THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: PAM C2280G.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3258-8	Courtesy of FORD MOTOR COMPANY	C2280G-34

Is the resistance less than 3 ohms?

Yes

GO to K8

No	REPAIR the circuit.

K8 CHECK THE PARKING AID SWITCH GROUND CIRCUIT 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 K9

No	REPAIR the circuit.

K9 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, Refer to BCM Guided Routine . .

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.