PINPOINT TEST F : One Or More Switch Or Component Illumination Is Inoperative

F1 CHECK THE BACKLIGHTING VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: Inoperative Illumination Source.

Ignition ON.

Place the headlamp switch in the parking lamps on position.

Using the instrument panel dimmer switch, change the dimmable backlighting to its brightest setting.

Measure:

Positive Lead	Measurement / Action	Negative Lead
Start-Stop Switch C2195-5	Courtesy of FORD MOTOR COMPANY	Ground
Active Park Assist Switch (Center Stack Switch Assembly) C2114-6	Courtesy of FORD MOTOR COMPANY	Ground
Auxiliary Climate Control Assembly C3198B-19	Courtesy of FORD MOTOR COMPANY	Ground
Center Console Finish Panel Lamp C3398-6	Courtesy of FORD MOTOR COMPANY	Ground
Left Door Lock Switch (without memory) C505-4	Courtesy of FORD MOTOR COMPANY	Ground
Left Door Lock Switch (with memory) C541-2	Courtesy of FORD MOTOR COMPANY	Ground
Right Door Lock Switch C605-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes	For a door lock control switch, INSTALL a new door lock control switch. REFER to Handles, Locks, Latches and Entry Systems With Intelligent Access (IA) . For all other components, GO to F2.
No	REPAIR the circuit.

F2 CHECK THE BACKLIGHTING GROUND CIRCUIT FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
Start-Stop Switch C2195-5	Courtesy of FORD MOTOR COMPANY	C2195-3
Active Park Assist Switch (Center Stack Switch Assembly) C2114-6	Courtesy of FORD MOTOR COMPANY	C2114-1
Auxiliary Climate Control Assembly C3198B-19	Courtesy of FORD MOTOR COMPANY	C3198B-11
Center Console Finish Panel C3398-6	Courtesy of FORD MOTOR COMPANY	C3398-4

Is the voltage greater than 11 volts?

Yes	INSTALL a new component in question.
No	REPAIR the circuit.