Electrical ?? - Turn Signal and Panel Lights - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 03-03-2008, 10:31 PM Thread Starter
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Electrical ?? - Turn Signal and Panel Lights

The interior panel lights started flickering last night. Whether the dial was set to bright or to dim. Then today on the way home from work the left turn signal was staying on on the panel and blinking very fast when used. Then finally tonight after getting home, I went out to look around at the lights. Well the front left turn signal light was smoking under the fender. Well after pulling out the owner manual for the 2003 TJ, it says that

"If either light remains on or does not flash, or there is a very fast flash, check for a defective outside light bulb."

Is is possible that this defective defective turn signal bulb may be impacting the interior panel lights?

I will try to replace the bulb tomorrow before something really gets melted within the turn signal, but your electrical help is appreciated.

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post #2 of (permalink) Old 03-03-2008, 10:39 PM
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It is possible, but have you gotten it wet recently? I dug some dirt out from behind my dash last time I had a guage/wiper problem and after liberal cleaning the problem went away.

Ya only go around once, best to enjoy it the first trip.
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post #3 of (permalink) Old 03-03-2008, 10:55 PM Thread Starter
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Just some heavy rain driving back from Michigan. No intentional deep puddles recently with the kids in the car. But those are always on the right hand side.

I originally thought that with all the potholes on the road, something on the control level got shaken out of place.

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post #4 of (permalink) Old 03-04-2008, 06:47 AM
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The rapid blink means a short to ground in the circuit. You probably have a wire rubbed raw somewhere between the place where the wire got hot and the bulb. It could be a bad bulb, I suppose, but I've never seen one fail that way.

Indicator bulb on the dash glowing when the headlights come on means a parking light is out on that side.

EVERYTHING's easy for the guy who doesn't have to do it.
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post #5 of (permalink) Old 03-04-2008, 08:05 AM Thread Starter
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Well I had a chance to look at the turn signal light in the daylight. Yes there appears to be some water within the plastic. I removed actually pulled the light out so that it would not start to smoke this evening on the way home. From an initial test of the panel lights, they did dim and then brighten when adjusted. However, a test in the dark this evening will show if they still flicker.

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post #6 of (permalink) Old 03-05-2008, 09:47 AM
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Correct me if I'm wrong but if you have a fast blinking turn signal, wouldn't that mean you have a light out? Having a burnt out light would equal less of a load on the relay so the relay switch closes faster making you blinker blink faster????

Just a side note: I lost all of my panel lights 6 months ago. I checked all the grounds and every thing in between and nothing worked. Well I had the jeep out last Saturday and on the way home from the desert.... bam... they came on and now are working fine... Boy I like owning a jeep

1986 stock CJ7 rebuilt 4.2L 258 more to come
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post #7 of (permalink) Old 03-05-2008, 11:59 AM
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Quote:
Originally Posted by Carnellc View Post
Correct me if I'm wrong but if you have a fast blinking turn signal, wouldn't that mean you have a light out? Having a burnt out light would equal less of a load on the relay so the relay switch closes faster making you blinker blink faster????
The flasher unit is basically a circuit breaker. The load passes through a coil around a bi-metal strip that opens the circuit as it heats. The greater the load, the faster it gets hot and trips. If the load it too light, as when a bulb is burned out, it will flash slowly or not at all.

Heavy-Duty flashers, for with a trailer hookup, use an internal constant load, so that they're not affected by the number of bulbs they're flashing. They flash at more less a constant rate regardless of load.

Quote:
Just a side note: I lost all of my panel lights 6 months ago. I checked all the grounds and every thing in between and nothing worked. Well I had the jeep out last Saturday and on the way home from the desert.... bam... they came on and now are working fine... Boy I like owning a jeep
Yep, and that's just one of many joys.

EVERYTHING's easy for the guy who doesn't have to do it.
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post #8 of (permalink) Old 03-05-2008, 02:46 PM
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I guess I had it backwards.

Now I know

1986 stock CJ7 rebuilt 4.2L 258 more to come
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