CHEVY AVALANCHE LOW BEAMS

  • Tiny
  • jordangang4
  • 2002 Chevrolet Avalanche
  • V8
  • 4WD
  • automatic
  • 120,000 miles

2002 Chevy Avalanche low beams stopped working. Bulbs replaced and fuses checked. Now what? Is there a manufacturer recall on this?

Sunday, May 22nd, 2011 AT 7:31 PM

7 Answers

  • Tiny
  • JDL
  • Expert
  • 16,214 posts

Check for voltage and ground for low beams. Orange wire is voltage, yellow wire is ground for low beams. The yellow wire is grounded through the dimmer switch. Don't know about recalls?

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Sunday, May 22nd, 2011 AT 8:03 PM
  • Tiny
  • jordangang4
  • Member

No voltage going to low beams. I checked at the headlamp plug. Where is the dimmer switch wire?

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Sunday, May 22nd, 2011 AT 8:27 PM
  • Tiny
  • JDL
  • Expert
  • 16,214 posts

Did you use a voltage tester on the orange wire? Hi beam and lo beam get voltage from same source.

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Sunday, May 22nd, 2011 AT 9:34 PM
  • Tiny
  • JDL
  • Expert
  • 16,214 posts

That yellow wire is ground and goes to dimmer switch.

When checking for voltage, did you have the headlamp switch on?

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Sunday, May 22nd, 2011 AT 9:36 PM
  • Tiny
  • jordangang4
  • Member

High beams work. No voltage where the low beam bulb plugs in at the headlamp.

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Sunday, May 22nd, 2011 AT 9:37 PM
  • Tiny
  • jordangang4
  • Member

I will check yellow wire at dimmer switch. I had engine on and headlight switch turned on. Raining right now, can't get out there just yet.

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Sunday, May 22nd, 2011 AT 9:39 PM
  • Tiny
  • JDL
  • Expert
  • 16,214 posts

If no voltage, the dimmer switch has nothing to do with it. Use a jumper wire, proper size, just for testing, from hi beam orange wire to lo beam orange wire. Does the low beam work?

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Monday, May 23rd, 2011 AT 3:38 PM

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