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1998 Chevy Tahoe Headlights/Instrument Panel

Tiny
FISHANDFLETCH
  • MEMBER
  • 1998 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 216,592 MILES
With the vehicle is running and light switch is off; the drls are on, drl indicator lamp on; when the light switch is turned to parking lights; the drls are on, indicator lamp on, parking lights on; nwo the PROBLEM - when the switch is turned to headlights; the headlights turn off, instrument panel lights go off. Can't figure out problem; not bulb; not fuse, not under hood stuff.

Thanks!
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Saturday, June 14th, 2008 AT 6:30 AM

7 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
Sounds like bad headlight switch. The drl use low voltage through the high beam. When turning on headlights you are now sending power to the low beams and if the fuse is good then the switch is bad. Real common.
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Sunday, June 15th, 2008 AT 3:06 PM
Tiny
FISHANDFLETCH
  • MEMBER
  • 4 POSTS
I replaced the headlight switch. Did not repair my headlights. I was wrong about the instrument panel lights, they do work when the switch is on. Any suggestions? THANKS!
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Sunday, June 15th, 2008 AT 7:15 PM
Tiny
MASTERTECHTIM
  • MECHANIC
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Do the high beams work regularly with the switch?
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Sunday, June 15th, 2008 AT 7:20 PM
Tiny
FISHANDFLETCH
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  • 4 POSTS
Once headlight switch is turned to headlights, I have no headlights; low or high.
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Sunday, June 15th, 2008 AT 7:41 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
Check for power at the red wire at the headlight switch, if ok check power at yellow wire, if ok the you must check power in and out of headlight dimmer switch(high beam switch) this is where the power comes from the headlight switch and either goes to low beams or high beams. let me know


https://www.2carpros.com/forum/automotive_pictures/139033_no_2.jpg

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Sunday, June 15th, 2008 AT 7:57 PM
Tiny
FISHANDFLETCH
  • MEMBER
  • 4 POSTS
I will try this tomorrow and get back with you. I have to get one of the meter things. I appreciate your help so much!
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Sunday, June 15th, 2008 AT 8:06 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
This is real basic wiring, all you need is a cheap test light. Glad to be of assistance
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Sunday, June 15th, 2008 AT 8:16 PM

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