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Headlamp relay location?

Tiny
BUDDYDOG1
  • MEMBER
  • 2002 CHEVROLET MONTE CARLO
  • 250,000 MILES
Low beam lights not working. Check the fuses they're good. The manual shows a headlamp relay somewhere in the vehicle I cannot find it. Can you help?
Thursday, March 14th, 2019 AT 6:45 AM

8 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

The headlight relay is located in the left instrument panel fuse block, on the left side of the instrument panel, and the daytime running lights relay is located in the under hood compartment fuse block, which is located in the engine compartment. I have included diagrams and location information in the diagrams below for you with a guide to help test the relay.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Thursday, March 14th, 2019 AT 7:44 AM
Tiny
ANTHONY-WAYNE
  • MEMBER
  • 17 POSTS
  • 2002 CHEVROLET MONTE CARLO
  • 131,310 MILES
My headlights went out about a week ago, I have bought new bulbs and it has had no effect. The fuse box where the headlamp relay should be is just a panel of wires.
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Saturday, September 26th, 2020 AT 2:32 PM (Merged)
Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
Check the voltage at the dimmer switch. Youll see it on the steering column a rod goes down to the 3 wire switch. Youll need a test light to check your voltage with.
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Saturday, September 26th, 2020 AT 2:32 PM (Merged)
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
  • 2002 CHEVROLET MONTE CARLO
  • 167,765 MILES
How do I change the headlight relay
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Saturday, September 26th, 2020 AT 2:33 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If the relay is the problem, just unplug the old one and plugin the new. Can you just pull the old one out? There is a diagram a few posts before this one with the location
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Saturday, September 26th, 2020 AT 2:33 PM (Merged)
Tiny
GUMBYGIRL
  • MEMBER
  • 2 POSTS
  • 2001 CHEVROLET MONTE CARLO
Electrical problem

I purchased a headlamp relay and opened the fuse box. It says it is 'internal' but I see no where that it could go internally in the fuse box. Can anyone tell me how to get to it to replace it? Thanks
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Saturday, September 26th, 2020 AT 2:33 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
Hey GUMBYGIRL

Your owners manual should give fuse and c/b and relay locations. MOD says under left side of dash fuse block for headlamp relay.

On top side of left instrument panel fuse block.

Here is a wiring diagram and a guide so you can do some testing to get the problem fixed.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Please let us know happens so it will help others.

Best, Ken
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Saturday, September 26th, 2020 AT 2:33 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
Hey,

Did you ever get the problem fixed?

Best, Ken
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Saturday, September 26th, 2020 AT 2:33 PM (Merged)

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