Question about 1999 Mazda Protege

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Fuses are fine but there is no power to the dimmer switch

All the fuses are fine and the start up lights come on but there is no backlight to the instrument panel

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  • Mazda Master
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I don't have a clear wiring diagram for just the dash lights, but it looks like the lights get power from the fuse and the dimmer switch provides the ground side of the circuit. American cars are the opposite.
So if you do not have power going into the dimmer I would look for a problem in the harness or the circuit board on the cluster.

Posted on May 09, 2013

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Posted on Jan 02, 2017

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SOURCE: radio/side view mirror switch does not work but fuse for it (#7) is fine. According to owners manuel, fuse #7 is also for instrument cluster ligts which work. Any Ideas?

start looking at the wiring harness in the door frame it sounds like it is broken
failing thet did it get wet recently ?
water inside of switches will film the contacts and all of a suden they dont work
or might it have been pop
the wife spilled diet coke on a keyboard once
took about 40 seconds 1/2 te keys stoped working.
diet coke plus switches epecialy in newer cars doesnt work well unless you dont want em to work ever again

Posted on Aug 03, 2009

gdue985
  • 1 Answer

SOURCE: where is the 2002 Mazda tribute instrument panel dimmer switch? my instrument panel is dimmed down

The instrument panel dimmer switch is to the left of the steering column, underneath the mirror adjustment knob.

Posted on May 15, 2012

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1 Answer

92 roadmaster instrument lights


Oh boy, I just went through this with my '92 Lesabre, took a long time to trace it all down, and wound up splicing in a new wire just to my instrument cluster lights. A short kept blowing fuses somewhere in that circuit.
Down where your feet go, up under the dash at the fuse panel, there is a 15 amp fuse for park/tail lights. When you hit the light switch (for heads or park lights), power is sent to that fuse, and then to the exterior park lights. There is another wire from that fuse (green wire on mine) that also goes up under the dash, and splices to several bulbs-on the radio, on the HVAC controller, on the ashtray light, also one to the under hood lamp, and then one to the dimmer/brighter switch on the dash, the rheostat that controls brightness of interior lights. One of the green splices goes into this switch, and then another wire goes from this switch to the instrument cluster for the gauge and dash illumination. I couldn't find the short, so ran a new wire from the park light fuse to the gray wire to the instrument cluster for the cluster bulbs. I bypassed the dimmer, and left off the HVAC bulbs and ashtray light. Too much trouble to wire them all up, and think my short may have been in the dimmer rheostat.
If you have a voltmeter, pull out the dimmer switch and check for power on those wires, the green from the fuse. The park light must be switched on, or the fuse has no power. There be 8 or 9 wires on that dimmer rheostat-I never did figure out where all of them went. Asked all over a Buick forum, but nobody had an answer.

Dec 02, 2016 | 1992 Buick Roadmaster

1 Answer

2003 Pontiac Vibe no tail lights, brake lights and turn signals work just fine. The dimmer switch does not dim the dash lights but does work the dome just fineand the lights for the Heat/AC are off.


The tail lights work off the headlight switch, and there is a fuse for the tail lights. Make sure the fuse is good, first, a 15 amp (blue) fuse in the instrument panel fuse block. Then, you might have a bad headlight switch.
So you DO have dash lights, they just don't dim from the dimmer switch? In the wiring diagram, there is a green wire from a "tail light relay" (in the "Junction Block-Right Instrument Panel") that carries power to all the exterior lamps, as well as having a splice to the Instrument Panel Cluster (illum. bulbs), and to the lamp dimmer, and to the radio bulb.
To do any further testing, you would need a voltmeter or a test light, so you could chase down this power loss. Good luck.

Oct 17, 2016 | 2003 Pontiac Vibe

1 Answer

Hi I have a Toyota Corolla 2008. Its dashboard/ odometer and parking lights not working. RAC guy checked all the fuses and they were fine. May i know whats the issue?


Did you hit the dimmer switch by mistake? It's usually a rotary dial by your left knee, sometimes higher. It controls how bright you want your backlighting on your gauge cluster to be.

Oct 07, 2015 | Toyota Cars & Trucks

1 Answer

Instrument cluster lights blowing fuses in 2002 ford explorer


need to replace the dimmer switch its probably shorted

Feb 27, 2013 | 2002 Ford Explorer

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My head lights arent working nor low nor high work. fuses are fine and the switch works...


When you say the switch works, what do you mean ?
There is a fuseable link wire and a 10amp fuse that powers the headlight relay. Power then goes thru the dimmer switch to the headlights.
Do you have power in and out of the dimmer switch ?

Jan 28, 2013 | 1999 Mitsubishi Eclipse

1 Answer

1994 silverado illumination on instrument panel doesn't work, parking lights and tail lights do not work but headlights and brakelights work fine. All fuses are good. Is this a bad dimmer switch?


No. Dash lights being out could be a bad headlight switch, since the dash lights are routed through the headlight switch, not the dimmer switch. Park and tail lights also controlled by the headlight switch.

Oct 23, 2012 | Chevrolet Cars & Trucks

1 Answer

1998 Ford Taurus Dash (Console) and Backlights are not Working


If the 15 amp fuse #20 in under the hood is good, suspect the headlight switch is bad.
see diagram at link below.
http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=62901

Aug 15, 2017 | 1998 Ford Taurus

1 Answer

2003 Kia Optima - Dashboard Lights not working.


if you have aftermarket lights hooked up to the dash light it has been known to smoke the rheostat that controls the dimmer. I would also check the other fuses, sometimes the cluster refers to the guages themselves and not the lights that illuminate them

Jun 26, 2009 | 2003 Kia Optima

3 Answers

Dashboard lights not working


No insult intended, but are you sure the lights on dash aren't just dimmed out? I fell for that one when it went through the car wash. Wiping down everything one of them rolled the dash dimmer. Good luck. And that inj looks like an abreviation for injector. That needs to be looked into cause something or an injector is shorted. good luck

Jun 03, 2009 | 1995 Nissan Maxima

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