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

J1 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 J2

No If the LED is inoperative GO to J6If the LED is always on GO to J4

J2 CHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) WITH THE ACTIVE PARK ASSIST SWITCH DISCONNECTED
- Ignition OFF.
- Disconnect: Active Park Assist 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 J3

No INSTALL a new active park assist switch. Refer to: Active Park Assist Switch .

J3 CHECK THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect: PAM connector C4014A .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C4014A-13	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to J4

No	Repair the shorted circuit.

J4 CHECK THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: PAM connector C4014A .
- Ignition ON.
Does the parking aid switch status LED continue to illuminate?

Yes GO to J5

No GO to J9

J5 CHECK FOR VOLTAGE ON THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT

Disconnect Active Park Assist Switch. connector C3258 .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3258-6	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	Repair the shorted circuit.

No	INSTALL a new active park assist switch. Refer to: Active Park Assist Switch .

J6 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 Active Park Assist Switch. connector C3258 .

Connect a fused jumper wire between:

Positive Lead	Measurement / Action	Negative Lead
C3258-6	Courtesy of FORD MOTOR COMPANY	C3258-12

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 active park assist switch. Refer to: Active Park Assist Switch .

No	REMOVE the jumper wire. GO to J7

J7 CHECK THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: PAM connector C4014A .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3258-6	Courtesy of FORD MOTOR COMPANY	C4014A-13

Is the resistance less than 3 ohms?

Yes

GO to J8

No	REPAIR the open circuit.

J8 CHECK THE PARKING AID SWITCH GROUND CIRCUIT FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3258-12	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms?

Yes

GO to J9

No	REPAIR the open circuit.

J9 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, INSTALL a new PAM. Refer to: Parking Assist Control Module (PAM) - 4-Door . Refer to: Parking Assist Control Module (PAM) - 5-Door .

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.