one headlight

[Burt]

I have a little problem with my passenger headlight, it's alot dimmer than the other headlight. I know it's probably a ground problem, I just haven't had time to mess with it. I was wondering if anyone else experienced this.



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2001 white ext. cab 4x4 5spd. slt ctd

 

[Thomas]

Your headlights are grounded through the light switch (switched ground). If you had a ground problem it would involve BOTH headlights.

 

[Shovelhead]

I believe that some manufacturers build a "secondary" filiment in the bulb so when the "primary" filiment burns out it will shine dimmer, but oncomming traffic can still see you.

It's probably time to replace it.

JMHO

 

[Burt]

bulb already changed

I have already changed the bulb. It's still real dim. I need a wiring

schematic of the headlight circuit. Anyone have this handy?

 

[rrl989]

Burt,



When I picked up my truck, I had one headlight dimmer than the other and the pattern was different. Had it to the 5 star Stealer ship 3X. I ended up diagnosing the problem myself. The

headlamp plug was built miswired. The ground / High Beam lines were swapped in the slots of the plug. Problem solved.



Just a thought, you may have a similar problem if you don't have the sport headlights.



Ron

 

[SS]

9007 pinout

I agree with Ron - if the high beam seems to work then this may be the problem. If you have the standard headlamps (non-sport), I think it's a single 9007 in each lamp. Looking at the back of the connector with the flat part to the top, it should be LOW (left), GROUND (center), HIGH (right). A simple test light will confirm how yours is pinned (check both sides to be sure). Use a small jeweler's screwdriver to release the wrong wire from the connector by pushing it into the small slot under the terminal on the front of the connector and gently pulling the wire out of the back. Push the terminal (and seal) back into the right position and test the lights. Hope this helps.

 

[Burt]

I don't think it is a miss wired problem, cause it just started doing this. The truck has 55K miles on it now. One night i noticed it was dim. The next day i changed the bulb-,still dim

This doesn't really bother me cause i only drive 1. 2miles to work,

but everyone telling me about it is driving me crazy.

Next step change switch i guess?



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2001 2500 ext-cab 4x4 sb 5spd. ctd