Pinpoint Test I : The Steering Wheel Switch(Es) Illumination Is Inoperative Or Always On: Notes
WARNING: This page is about a different car, the 2015 Lincoln MKZ. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Cluster And Panel Illumination for schematic and connector information.
Normal Operation and Fault Conditions
The steering wheel switches receive illumination voltage from the BCM on the common illumination circuit through the clockspring.
Possible Sources
- Wiring, terminals or connectors
- Steering wheel switch(es)
- Clockspring
- Steering wheel
- Driver airbag