Pinpoint Test F : The Ignition Lock Cylinder Can Be Turned To The Off Position When The Selector Lever Is Not In Park

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

F1 CHECK THE KEY REMOVAL INHIBIT SOLENOID GROUND CIRCUIT FOR AN OPEN

NOTE: The following pinpoint test step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250- 300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.

Disconnect: Ignition Switch C250 .

Connect:

Lead 1	Measurement / Action	Lead 2
C250-4	Courtesy of FORD MOTOR COMPANY	C250-3

Apply the parking brake.

Select NEUTRAL.

Does the test lamp illuminate?

Yes	INSTALL a new ignition switch. REFER to Ignition Switch .
No	GO to F2.

F2 CHECK THE KEY INHIBIT SOLENOID CIRCUIT FOR AN OPEN

Select PARK.

Disconnect: Selector Lever C3245 (floor shift).

Disconnect: Brake Shift Interlock Actuator C2008 (column shift).

Measure:

Floor Shift

Positive Lead	Measurement / Action	Negative Lead
C250-3	Courtesy of FORD MOTOR COMPANY	C3245-2

Column Shift

Positive Lead	Measurement / Action	Negative Lead
C250-3	Courtesy of FORD MOTOR COMPANY	C2008-3

Is the resistance less than 3 ohms?

Yes	GO to F3.
No	REPAIR the circuit.

F3 CHECK THE SELECTOR LEVER OR BRAKE SHIFT INTERLOCK ACTUATOR GROUND CIRCUIT FOR AN OPEN

Measure:

Floor Shift

Positive Lead	Measurement / Action	Negative Lead
C3245-5	Courtesy of FORD MOTOR COMPANY	Ground

Column Shift

Positive Lead	Measurement / Action	Negative Lead
C2008-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms?

Yes	INSTALL a new selector lever (floor shift) or brake shift interlock actuator (column shift). REFER to Automatic Transmission External Controls .
No	REPAIR the circuit.