Headlight switch Electrical problems
Thread Starter
|
New User
Joined: Sep 2006
Posts: 20
Likes: 0
Headlight switch Electrical problems
’90 Bronco
5.0L
AOD trans.
This is my problem, first started a couple of weeks after I bought the truck. At first the headlights were very difficult to turn off at the headlight switch, I would have to find the sweet spot where the headlights, the gauge lights and other interior lights would turn off (the lights connected to the 5 Amp # 10 fuse, in the interior fuse block). So, I replaced the headlight switch and now the headlights turn on and off perfectly but, the interior lights are still always on when the switch is plugged in, does not matter what position the ignition is in.
<O
></O>
From playing around with the headlight switch, I have found that when the headlight switch is plugged in, the little white ceramic interior dimmer part of the headlight switch gets very hot in very little time (maybe a minute or two). When the headlight switch is unplugged the interior lights don’t come on when the ignition switch is in the off position. However, the interior lights come on when the ignition is in any other position.
<O></O>
This is my first bout with electrical wiring and it is kill me. My mechanical aptitude is not very high so any help would be greatly appreciated. Thank you in advance.
5.0L
AOD trans.
This is my problem, first started a couple of weeks after I bought the truck. At first the headlights were very difficult to turn off at the headlight switch, I would have to find the sweet spot where the headlights, the gauge lights and other interior lights would turn off (the lights connected to the 5 Amp # 10 fuse, in the interior fuse block). So, I replaced the headlight switch and now the headlights turn on and off perfectly but, the interior lights are still always on when the switch is plugged in, does not matter what position the ignition is in.
<O
></O>From playing around with the headlight switch, I have found that when the headlight switch is plugged in, the little white ceramic interior dimmer part of the headlight switch gets very hot in very little time (maybe a minute or two). When the headlight switch is unplugged the interior lights don’t come on when the ignition switch is in the off position. However, the interior lights come on when the ignition is in any other position.
<O
></O>This is my first bout with electrical wiring and it is kill me. My mechanical aptitude is not very high so any help would be greatly appreciated. Thank you in advance.
Last edited by new2bronco; Sep 29, 2006 at 11:59 AM. Reason: Better title
Lead Driver
Joined: Sep 2002
Posts: 9,182
Likes: 12
From: Gateway to the West
Someone has miswired your interior lamps on the WRONG side of the ignition somewhere. NONE of the lighting circuits should be affected by the ignition switch in any way. The most likely reason for teh dimmer overheating is the power backfeed through the dimmer from the miswired interior lamp circuit. Best bet would be to get yourself a Haynes manual and have a close look at what the wiring is supposed to look like and then go in search of anything that doesn't coindice with the diagrams in the manual.
Thread
Thread Starter
Forum
Replies
Last Post
Animalistic
1987 - 1996 F150 & Larger F-Series Trucks
6
Dec 19, 2007 08:31 PM
