Electrical problem
Thread Starter
It's my pot and I'll stir it if I want to. If you're not careful, I'll stir your's as well!
Joined: Dec 2002
Posts: 3,269
Likes: 210
From: Central Mexico.
Electrical problem
There is zero power going to the left headlights, both high beam and low beam. Took the cover off the fuse box and ever lamp imaginable is listed with a fuse, but no fuse or relay listed for the headlamps. I have the factory electrical manual and can trace the headlamp circuit to the IPM, but can't see any sign of a relay or fuse.
I also have a lamp out lit in the panel.
Nothing mentioned about headlamp fuses in the owners manual either.
Anybody have any idea where the fuse or relay is located for the headlamps?
Edit: Did more reading in the manual and discovered that the headlamp power is controlled by the PCI bus circuit. I pulled the IOD fuse and let it sit for 5 minutes and after I reinstalled it, lo and bold, the headlamps work. The lamp out light has gone out too.
All this started after I modified the left side for a HID lamp. It started to rain, so never finished the right side. Now I am glad I did not or else I would have been stranded with no lights on a dark country road. The HID idea is now garbage and going back to tried and true halogen lamps.
I also have a lamp out lit in the panel.
Nothing mentioned about headlamp fuses in the owners manual either.
Anybody have any idea where the fuse or relay is located for the headlamps?
Edit: Did more reading in the manual and discovered that the headlamp power is controlled by the PCI bus circuit. I pulled the IOD fuse and let it sit for 5 minutes and after I reinstalled it, lo and bold, the headlamps work. The lamp out light has gone out too.
All this started after I modified the left side for a HID lamp. It started to rain, so never finished the right side. Now I am glad I did not or else I would have been stranded with no lights on a dark country road. The HID idea is now garbage and going back to tried and true halogen lamps.
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Joined: Jul 2002
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If you install HID's you have to install an extra relay to isolate the HID's high energy system from creating feedback to the Ignition Off Draw (IOD). Sometimes it also requires installation of a set of bleeder resistors on the primary headlight relay power side.
All in all, it is a real pain to deal with and sends a lot of guys to the dealer with fried modules.
All in all, it is a real pain to deal with and sends a lot of guys to the dealer with fried modules.
I wish I was as fine, as those who work the pipeline!
Joined: Dec 2008
Posts: 1,639
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From: Wyoming
Stan, you may be familiar with it already but there is a lot of good lighting info on this site. check it out.
Thread Starter
It's my pot and I'll stir it if I want to. If you're not careful, I'll stir your's as well!
Joined: Dec 2002
Posts: 3,269
Likes: 210
From: Central Mexico.
Thanks guys. The Daniel Stern site does have a lot of good info, but I am familiar with most of it.
Just posted a question here in regard to my problem: https://www.dieseltruckresource.com/...=133135&page=6
My only concern is to how to fool that stupid computer and not cause it to shut the power off. Dodge really blew it by using a computer to control the B power in lieu of the tried and true fuses and a common switch. If it ain't broke, why fix it?
Just posted a question here in regard to my problem: https://www.dieseltruckresource.com/...=133135&page=6
My only concern is to how to fool that stupid computer and not cause it to shut the power off. Dodge really blew it by using a computer to control the B power in lieu of the tried and true fuses and a common switch. If it ain't broke, why fix it?
Registered User
Joined: Mar 2004
Posts: 1,110
Likes: 0
From: Iowa
Thanks guys. The Daniel Stern site does have a lot of good info, but I am familiar with most of it.
Just posted a question here in regard to my problem: https://www.dieseltruckresource.com/...=133135&page=6
My only concern is to how to fool that stupid computer and not cause it to shut the power off. Dodge really blew it by using a computer to control the B power in lieu of the tried and true fuses and a common switch. If it ain't broke, why fix it?
Just posted a question here in regard to my problem: https://www.dieseltruckresource.com/...=133135&page=6
My only concern is to how to fool that stupid computer and not cause it to shut the power off. Dodge really blew it by using a computer to control the B power in lieu of the tried and true fuses and a common switch. If it ain't broke, why fix it?
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