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  #1  
Old November 29th, 2008, 17:32
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YELLAHEEP YELLAHEEP is offline
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'89 Comanche - front parking lights/dash lights not working

Did some searching but nothing really seems to match my issue.

Dash lights: When I pull the head light switch, no dash lights. When I turn the switch (rheostat) to dim/brighten the dash lights, nothing. When I turn it the other way to turn on the dome light, I get dash lights.

Bad headlight switch?

Parking lights: Tail light operation is fine. When I pull the headlight switch, the right and left turn signal green arrows light up. Signals and hazards work fine with the headlights on, front ambers light up for the turn signal, but I think its the parking filament lighting up and not the brighter turn signal filament. Amber corner lights work fine but don't blink with the turn signal. (I believe they should alternate on/off with each other?)

Fuses are fine, just replaced the bulbs, the contacts in the sockets are in great shape with good electric lube.

Ideas?

Last edited by YELLAHEEP; November 29th, 2008 at 17:35.
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Old November 29th, 2008, 17:38
Downthemachine Downthemachine is offline
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Re: '89 Comanche - front parking lights/dash lights not working

Seems like two issues, a bad switch, and possibly bad grounds
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Old November 29th, 2008, 17:49
Downthemachine Downthemachine is offline
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Re: '89 Comanche - front parking lights/dash lights not working

definately check your grounds and get a switch. I've had a few cars do exactly what you said with, turning the dimmer to dome the dash lights turn on. Check your tail light grounds, and make sure they're not corroded.
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Old November 30th, 2008, 20:01
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YELLAHEEP YELLAHEEP is offline
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Re: '89 Comanche - front parking lights/dash lights not working

Tail lights work fine in all modes.

Grounds up front must be ok - all circuits share the same ground wire path. Test light shows no power going to the turn signal circuit to light up the bright filaments in the turn signal bulbs.

It's just interesting that the green arrows light up just like a burned out bulb in the circuit would.

I think I'll remove the bulbs and see if the green arrows still light up - that should indicate a short further up the harness I'd imagine.

Then I'll probably look at the connector between the harnesses and check for power to both sides and go back thru the main harness and connectors from there.
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Old November 30th, 2008, 21:33
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Re: '89 Comanche - front parking lights/dash lights not working

dash should not come on with interior lights, they are separate circuits and fuses

bad switch explains all of your problems
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Old December 4th, 2008, 15:56
matttaylor1976 matttaylor1976 is offline
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Re: '89 Comanche - front parking lights/dash lights not working

another quick check for the front marker lights is to pull the lens and giggle or push the connectors from the back of the sockets. Mine were doing the same thing and it turned out that the internal connectors in the socket had completely corroded away. I had to rewire the sockets to restore the lights.
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