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Headlight switch makes instrument cluster act up

1997 turn on the headlights and the instrument cluster turn signal indicators light up (but do not make the turn signal lights to flash just cluster illumination)also the gauges read incorrectly. Turn off the headlights and everything is normal. I think it is a ground but all my schematics do not show where the grounds connect to, the schematic just shows a grounding symbol. thios all happened after I drove down a wet bumpy dirt road. Please help. Thank you

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Posted on Jan 02, 2017

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SOURCE: electrical problem

Find the ground wire on one of the lights and add another ground wire to a good clean metal surface and see if that fixes the problem. It defently sounds like a ground problem at one of the lights.

Posted on Jan 07, 2009

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SOURCE: s10 2.2 5 spd 2wd...electrical problem

sheck ground cable to engine

Posted on Nov 22, 2009

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SOURCE: I have a 2001 cavalier with a dim driver side

Give this a try------get a piece of wire and strip both ends, the black wire coming out of the plug on the head light, stick one end of the wire in there and the other end to a good ground or the negative battery terminal with the lights on, if the light gets brighter, there is a bad ground to that light. I hope this helps, cause you have just done about everything else.

Posted on May 15, 2010

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SOURCE: I have a 1983 Chevy

take a look at the dash ground wire located next to the right of ebrake release handle. if the bole holding the ground wire is loose, which was quite common it will cause all kinds of feed back problems, like described in the comments section to your question.

Posted on Aug 04, 2011

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SOURCE: daytime running lights work but go out when I turn

If you have daytime running lights but when you turn on your regular headlight on they do not come on. Take the bottom of your steering column off (Two Small Screws) and look at the back of your turn/dimmer switch make sure that the light blue wire is connected. The wires will break off after years of raising and lowering your steering column.

Posted on Dec 21, 2011

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1 Answer

I have the owners manual in front of me but nowhere does it list the relay for the right side headlight or a relay for either headlight. Fuses are good. SSP relays dont say what they are for.


Tree is not a relay for the headlights. The headlights are ground side controlled by the FEM module. The FEM module receives lighting information from the instrument cluster which is the "gateway" for the lighting info. The headlight switch as well as the high/low and turn signal information is routed through the instrument cluster and is them delivered to the FEM module or the rear lighting control module.

Mar 01, 2015 | 2001 Ford Windstar

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All dash warning lights come on and the temperature and tach needles drop to zero when the headlights are turned on.


Symptoms point to the cluster microprocessor. How was it proven? See diagram below.

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Jun 16, 2017 | 1997 Pontiac Sunfire

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I need to know which fuse number for lights


Turn Signal (Right) white/tan (F), white/yellow (R) + TIPM, green 16 pin plug, pin 3; green 26 pin plug, pin 4
The TIPM (Totally Integrated Power Module) is in the engine compartment, on the passenger side fender.

Headlight white/brown -1.2K ohms [2009 = same] headlight switch or instrument cluster, gray 26 pin plug, pin 3
AutoLights same as headlight
Reverse Light white/lt. green + [2009 = same] passenger kick, harness to rear
Left Front Door Trigger purple - [2009 = VIOLET] driver kick or instrument cluster, white plug, pin 3
Right Front Door Trigger purple/white - [2009 = VIOLET/white] pass kick or instrument cluster, white plg, pin 16

Jun 25, 2011 | 2009 Dodge Challenger

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I have a 1983 Chevy S10 pickup. With headlights off all gauges work normal. When you pull the headlight switch on all the panel lights except the windshield wiper switch locator light never turn on and all...


take a look at the dash ground wire located next to the right of ebrake release handle. if the bole holding the ground wire is loose, which was quite common it will cause all kinds of feed back problems, like described in the comments section to your question.

Dec 11, 2010 | 1983 Chevrolet S-10

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My car has been acting weird lately, in almost 5 minuet intervals I am loosing the ability to keep the highbeams on, the only lights that remain on are my instrument cluster and the clock. I have a 1991...


that is either the headlight switch is bad or a connector on headlight switch also poss the dimmer switch.
check both headlight switch and or dimmer switch one of them is burnt up.

Nov 13, 2010 | 1991 Oldsmobile Cutlass Supreme

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Headlight swicht broke


Removal & Installation
  1. Disconnect the negative battery cable from the battery.
  2. Remove the lower steering column cover-to-instrument panel screws and the cover.
  3. Remove the instrument cluster trim plate-to-instrument cluster screws and the panel, then allow the panel to hang to the left side by the wiring.
  4. Disconnect the electrical connector from the rear of the headlight switch.
  5. Disengage and remove the headlight switch from the instrument cluster trim plate.
To install:
  1. Connect the electrical connector to the rear of the headlight switch.
  2. Engage and install the headlight switch in the instrument cluster trim plate.
  3. Install the instrument cluster trim plate-to-instrument cluster screws and the panel.
  4. Install the lower steering column cover-to-instrument panel screws and the cover.
  5. Connect the negative battery cable to the battery and check operation.

Apr 27, 2010 | 1995 Chevrolet Astro

1 Answer

Main fuses for the horn and air bag


Fuse #8, #18 and #22.

Below is a listing of which fuse corresponds with which circuit:

1 - 10 Amp - Transmission Controller, Gauges, Autostick
2 - 10 Amp - Right High Beam Headlight
3 - 10 Amp - Left High Beam Headlight
4 - 10 Amp - Radio, CD Player
5 - 10 Amp - Washer Motor
6 - 15 Amp - Power Outlet
7 - 20 Amp - Tail, License, Parking, Illumination Lights, Instrument Cluster
8 - 10 Amp - Airbag
9 - 10 Amp - Turn Signal Lights, Turn Signal/Hazard Indicator
10 - 15 Amp - Right Low Beam
11 - 20 Amp - High Beam Relay, High Beam Indicator, High Beam Switch
12 - 15 Amp - Left Low Beam Headlight
13 - 10 Amp - Fuel Pump Relay, Power Train Control Module
14 - 10 Amp - Cluster, Day/Night Mirror,Sunroof, Overhead Console, Garage Door Opener, Body Control Module
15 - 10 Amp - Daytime Running Light Module (Canada)
16 - 20 Amp - Fog Light Indicator
17 - 10 Amp - ABS Control, Back Up Lights, Daytime Running Lights, A/C Heater Control Cavity Fuse Circuits
18 - 20 Amp - Power Amplifier, Horn
19 - 15 Amp - Overhead Console, Garage Door Opener, Trunk, Overhead, Rear Reading, and Visor Vanity Lights, Trunk Release Solenoid, Power Mirrors, Power Door Locks, Body Control Module, Aspirator Motor
20 - 20 Amp - Brake Lights
21 - 10 Amp - Leak Detection Pump, Low Rad Relay, High Rad Relay, A/C Clutch Relay
22 - 10 Amp - Airbag
23 - 30 Amp - Blower Motor, ATC Power Module
24 - 20 Amp - Power Window Motors
25 - 20 Amp - Power Door Lock Motors, Power Seats

Apr 02, 2009 | 2004 Dodge Intrepid

1 Answer

Electrical problem


Find the ground wire on one of the lights and add another ground wire to a good clean metal surface and see if that fixes the problem. It defently sounds like a ground problem at one of the lights.

Jan 07, 2009 | 1983 Chevrolet Caprice

1 Answer

Headlights wont work


Well...lets start with the obvious. Check fuses and NEVER piggyback any stereo or security stuff into their fuses...you dont want the lights to shut down during a night drive!!
Check under the hood for a relay center...also has some fuses there as well.

The Daytime Running Lamps are a "straight through wiring configuration". Doubt it even goes through a headlight switch at all.
But the regular lights do.
Unless you've worked on the front of the car and forgot to plug the headlights back in, do this...
Turn the light switch on...looking at the instrument cluster , can you make the high-beam-indicator light come on?
As you rotate the headlight switch knob...does the instrument panel lights brighten or dim? You probably have a faulty headlight switch...auto stores have them...they simply plug in.

Dec 31, 2008 | 1997 Chevrolet Cavalier

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