weak backup lights
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New User
Joined: Dec 2003
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weak backup lights
My 97 aero has the weakest backup lights going, a flashlight is brighter. Is there any help other than adding supplemental devices? If that is the only option --- suggestions
thanks from the land of the midnight sun ( in the summer)
northland
thanks from the land of the midnight sun ( in the summer)
northland
Senior User
Joined: Aug 2003
Posts: 435
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From: Corpus Christi, Tx. 78418
northland,
Sounds to me like you may have a short somewhere draining voltage to your backup lights. Are your stop lights OK? Do you have a towing package attached that might have shorted?
Are your lenses clean and clear? I just checked my 92 3.0L 2wd's backup lenses and they are clear. If yours' are frosted over that might account for your less than bright lights. You can fix them with Meguiar's Clear Plastic Cleaner and Meguiar's Clear Plastic Polish (found at boat supply outlets for cleaning plastic windscreens) or use a good quality rubbing compound.
LOL
Ron
Sounds to me like you may have a short somewhere draining voltage to your backup lights. Are your stop lights OK? Do you have a towing package attached that might have shorted?
Are your lenses clean and clear? I just checked my 92 3.0L 2wd's backup lenses and they are clear. If yours' are frosted over that might account for your less than bright lights. You can fix them with Meguiar's Clear Plastic Cleaner and Meguiar's Clear Plastic Polish (found at boat supply outlets for cleaning plastic windscreens) or use a good quality rubbing compound.
LOL
Ron
Elder User
Joined: Dec 2002
Posts: 624
Likes: 0
From: Georgia
I don't have my wiring diagram here but, I would guess it’s a dirty ground or connection. When a connection gets dirty it increases the resistance. The voltage drops across the resistance.
If you can, measure the voltage across the light bulb with the bulb installed and the light on. (That is measure at the two bulb connections.) If it’s not 12 VDC then you have a bad connection somewhere. Measure from ground to the bulb. You should have 12 VDC at one end and 0VDC at the other.
If you have less than 12 then the problem is before the bulb. If you have more than 0 at the other then you have a bad connection between the bulb and ground.
If you can, measure the voltage across the light bulb with the bulb installed and the light on. (That is measure at the two bulb connections.) If it’s not 12 VDC then you have a bad connection somewhere. Measure from ground to the bulb. You should have 12 VDC at one end and 0VDC at the other.
If you have less than 12 then the problem is before the bulb. If you have more than 0 at the other then you have a bad connection between the bulb and ground.
