Pinpoint Test

1. Ignition OFF.
2. Place the headlamp switch in the parking lamps on position.
3. Using the instrument panel dimmer switch, change the dimmable backlighting to its brightest setting.

• Are all non-networked dimmable backlighting sources inoperative? 

1. Yes:  REFER to Diagnostic Routine A .
2. No:  If all steering wheel switches do not illuminate, GO to step 2 .

If an individual steering wheel switch does not illuminate, GO to step  5 .

1. Push the driver air bag against the steering wheel to activate the horn.

• Does the horn sound? 

1. Yes:  GO to step 3 .
2. No:  REFER to Diagnostic Routine A .

1. Disconnect: Lower Clockspring C218A.
2. Measure:

Fig 1: Identifying Clockspring Terminal

Courtesy of FORD MOTOR CO.

• Is the voltage greater than 11 volts? 

1. Yes:  GO to step 4 .
2. No:  REPAIR the circuit.

1. Connect: Lower Clockspring C218A.
2. Remove the driver air bag module. REFER to DRIVER AIR BAG MODULE .
3. Disconnect: Upper Clockspring C218B.
4. Connect: Battery Ground Cable.
5. Place the headlamp switch in the parking lamps on position.
6. Using the instrument panel dimmer switch, change the dimmable backlighting to its brightest setting.
7. Measure:

Fig 2: Identifying Clockspring Connector

Courtesy of FORD MOTOR CO.

• Is the voltage greater than 11 volts? 

1. Yes:  REPAIR the steering wheel harness for an open or INSTALL a new steering wheel. REFER to STEERING WHEEL .
2. No:  INSTALL a new clockspring. REFER to CLOCKSPRING .