Headlight on driver's side dim; they go out when I put brights on.


Asked by Jan 08, 2015 at 04:39 PM about the 2002 Subaru Outback Base Wagon

Question type: Maintenance & Repair

I switched the headlight housings from left to right, then the headlight relays. The problem still stayed on the driver's side. New bulbs already.

2 Answers


My guess is a bad ground. A headlight is normally grounded to the chassis of a vehicle in order to allow electricity to complete a circuit and return to the vehicle's negative battery terminal. If the headlight's ground loosens or is corroded, the headlight will begin to dim. Trace the route of each of the wires coming from the wiring harness until the ground is found. The ground is the wire that runs directly to the chassis. Clean and tighten the connection. Hope this works for you.

1 out of 1 people think this is helpful.

I'll check that out. Still don't understand why I would only get 6 volts going to the lamp. I bought a new switch assembly for the steering column, thinking it might be that. It didn't... It's hard to trace the ground back because it disappears into the fender well; but I should have continuity between that ground wire and the frame; is that what you're suggesting? Thank you...

1 out of 1 people think this is helpful.

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