SPONSORED LINKS

Passenger side headlight dim

Tiny
FREDTRUNCT
  • MEMBER
  • 2002 CHEVROLET MALIBU
  • 3.1L
  • 6 CYL
  • 150,000 MILES
The head light works but it's very dim if it does work. I assume a ground wire. I suppose I must go get a multi-meter or a test light. That's fine. I was just curious if there is any TSB'S on this issue. I have seen many similar complaints on the inner-web. Thanks a bunch!

Fat old tire monkey
SPONSORED LINKS
Saturday, February 29th, 2020 AT 5:49 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Unfortunately I didn't find any TSBs but this is an issue most likely in the wiring. Dim lights are caused by resistance in the circuit.

What I would suggest is unhooking the wiring from the bulb to the fuse block and then to the switch and measuring resistance for each wire. This is done by putting one lead of the meter at one end of the wire and the other lead at the other end. Then set you meter on ohms and you should have about a half ohm of resistance on wiring.

It is most likely not a ground wire because this is what is called ground side controlled. That means all the control components (switch and BCM) are after the bulb in the circuit. So basically when you switch off the headlamps it just opens the ground circuit and breaks the circuit and turns the lights off.

Let me know if you have questions and we can work through it.

https://www.2carpros.com/articles/how-to-check-wiring
Images (Click to make bigger)
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, February 29th, 2020 AT 8:40 AM

Please login or register to post a reply.

Related Headlight Dim Content

Have a Dim Headlight? - Try Replacing This!
VIDEO
Have a Dim Headlight? - Try Replacing This!
Instructional repair video
Headlight Dim or Dull
GUIDE
Headlight Dim or Dull
Dim/dull headlight or headlights can be dangerous as it inhibits the vision of the driver from seeing obstacles in the roadway. Fortunately there are only a handful of...
VIEW MORE

Sponsored links