Another low beam headlight issue. Please help.

**stocker** · 12-22-2016

Originally Posted by nox

Could it be the headlight switch itself in the column? No power to the relay, that would be where I start before the BCM.

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Originally Posted by Nicksmith5553

I replaced the headlight switch already. Bcm is there only thing I haven't touched

I think nox was talking about the multi function switch that is in the steering column. Like this:

https://www.napaonline.com/napa/en/s...4&catIndex=App

I've had both the "headlight switch" in the steering column go bad as well as the HDM relay/module go bad twice. Not sure how to troubleshoot the fact that you have no power to the relay... sorry.

**Bronco Boy** · 12-22-2016

Check power at the headlight and multi-function switch.

**Swiggles** · 12-22-2016

I would check the multi switch first. Bcm had to be programmed by the dealer but I think you can use a used one. Otherwise Rick auto has new bcm, I think they are $250ish last I looked.

**Jmoonfd** · 12-22-2016

Originally Posted by Nicksmith5553

I replaced the headlight switch already. Bcm is there only thing I haven't touched

I will know tomorrow with my car as have same issue. Taking it to the dealer to see if it is the bcm before i replace it . I've replaced hdm /#35 relay and headlight switch . Last option was bcm but wanted to make 100% sure . So after 4 pm cst i will post what they found.

**Scottydoggs** · 12-22-2016

you guys got any other issues like the fan motor blowing on 5 only, or the parking lights not working? if so it could be the ignition harness. they seem to affect a load of different things.

**nox** · 12-22-2016

Originally Posted by stocker

I think nox was talking about the multi function switch that is in the steering column. Like this:

https://www.napaonline.com/napa/en/s...4&catIndex=App

I've had both the "headlight switch" in the steering column go bad as well as the HDM relay/module go bad twice. Not sure how to troubleshoot the fact that you have no power to the relay... sorry.

Thank you, I was talking about the multi switch. A short in their can cause the Relay to receive no signal.

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**Nicksmith5553** · 12-22-2016

I've also changed the multi switch. The only other thing that doesn't work is my cruise won't stay on. I have also had it lose all power in the cab and come back on about 3 times now while driving.

**nox** · 12-22-2016

Originally Posted by Nicksmith5553

I've also changed the multi switch. The only other thing that doesn't work is my cruise won't stay on. I have also had it lose all power in the cab and come back on about 3 times now while driving.

This is info that would be nice to know from the start...

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**Nicksmith5553** · 12-23-2016

Sorry, I haven't been the only person driving. Just got this info about the inside power. Feel like this going to get expensive.

**Swiggles** · 12-23-2016

Cruise not working on my 2000 was because one of the high mount brake lights was out, weird safety thing I believe. Figured it out with my led install.

Thread: Another low beam headlight issue. Please help.

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