PINPOINT TEST K : B2418, B2419 or B2420

K1 CHECK FOR VOLTAGE TO THE POSITION SENSOR

Ignition OFF.

Disconnect: Power Liftgate Motor.

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C4223-2	Courtesy of FORD MOTOR COMPANY	C4223-3

Is the voltage greater than 11 volts?

Yes	GO to K5.
No	GO to K2.

K2 CHECK THE POSITION SENSOR VOLTAGE CIRCUIT

Measure:

Positive Lead	Measurement / Action	Negative Lead
C4223-2	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes	GO to K4.
No	GO to K3.

K3 CHECK THE POSITION SENSOR VOLTAGE CIRCUIT FOR AN OPEN OR SHORT TO GROUND

Ignition OFF.

Disconnect: LTM C4174B.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C4174B-19	Courtesy of FORD MOTOR COMPANY	C4223-2

Positive Lead	Measurement / Action	Negative Lead
C4174B-19	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms between LTM and power liftgate motor; and greater than 10, 000 ohms between LTM and ground?

Yes	GO to K9.
No	REPAIR the circuit.

K4 CHECK THE POSITION SENSOR RETURN CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: LTM C4174B.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C4174B-20	Courtesy of FORD MOTOR COMPANY	C4223-3

Is the resistance less than 3 ohms?

Yes	GO to K9.
No	REPAIR the circuit.

K5 CHECK THE POSITION SENSOR CIRCUITS FOR REFERENCE VOLTAGE

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C4223-5	Courtesy of FORD MOTOR COMPANY	Ground
C4223-6	Courtesy of FORD MOTOR COMPANY	Ground

Are the voltages approximately 5 volts?

Yes	INSTALL a new power liftgate motor. Refer to Power Liftgate Motor .
No	GO to K6.

K6 CHECK THE POSITION SENSOR CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: LTM C4174B.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C4174B-7	Courtesy of FORD MOTOR COMPANY	C4223-5
C4174B-8	Courtesy of FORD MOTOR COMPANY	C4223-6

Are the resistances less than 3 ohms?

Yes	GO to K7.
No	REPAIR the circuit in question.

K7 CHECK THE POSITION SENSOR CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C4223-5	Courtesy of FORD MOTOR COMPANY	Ground
C4223-6	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit in question.
No	GO to K8.

K8 CHECK THE POSITION SENSOR CIRCUITS FOR A SHORT TO GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
C4223-5	Courtesy of FORD MOTOR COMPANY	Ground
C4223-6	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances greater than 10, 000 ohms?

Yes	GO to K9.
No	REPAIR the circuit in question.

K9 CHECK FOR CORRECT LTM OPERATION

Ignition OFF.

Disconnect and inspect all LTM 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 all the LTM 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 TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new LTM. Refer to Liftgate/Trunk Module (LTM) .
No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.