Headlamp Dimmer Switch: Testing and Inspection

LIGHTING: HEADLIGHT DIMMER SWITCH: INSPECTION

1. INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY

(a) Measure the resistance according to the value(s) in the table below.





Standard resistance:


Light control switch






Dimmer switch







Turn signal switch







Fog light switch







(b) If the result is not as specified, replace the headlight dimmer switch assembly.