2003 Silverado 2500hd, ABS/parking brake light stays on

[sahls01gmc]

I would look into the ABS computer. I believe it is mounted on the drivers side frame rail.

 

My lights come on only when the weather is above 30 degrees, so kind of the oppostie.

[spankey812]

Hey memory1 I had a 2001 2500HD with the same problem did all the checks fixed all the grounds turns out the problem is the control unit on top of the ABS unit you have to take the unit off (4screws and 2connectors)no disconnecting brake lines take the lid off check the circuit board some of the solder connections break I took a small pencil soldering iron and resoldered those connections the abs light never came on again there is a you tube video for it also hope this helps

[sahls01gmc]

+1 to spankey812

[spankey812]

I found the YouTube link I know a lot of trucks have this problem it is an easy fix

 

[gmtech4]

dont get the guy all side tracked on this repair ,,,,,,he hasnt pulled a code yet FCS

[txab]

dont get the guy all side tracked on this repair ,,,,,,he hasnt pulled a code yet FCS

+1

[30 1500HD]

Does anyone have an issue like this or heard of this?

I take my keys out truck off

and the high beam (blue) indicator light is illuminated and so is the(red) (padlock) Doorlock indicator

light on gauge cluster. not bright just faintly illuminated, but enough to kill battery after 3 weeks parked.

I have had my dash in for recall, worked great till I parked after hunting/camping/towing season

theses 2 indicator lights drained my red top optima. Now this issue has arised in gauge cluster

I have checked the BCM under column unplug 1 at a time to see if they go out still on. im thinking its the ECM under battery tray because im having a low idle issue.

 

I am a marine tech/mech working on mercury/mercruiser Sea-Ray, Boston Whaler Boats

Sea-Ray uses gm modified for marine engines only. form 3.0L 4cyl to 496-502 V-8 blocks

 

of coarse the boats don't have theses gauge cluster or BCMs under steering column

But they do have the ECMs but are mercuiser modified and controlled

just kinda stumped on this issue

 

Thanks for any feedback

 

Just got my trk back for Coopers Auto Repair

They found the circuit board in gauge cluster was bad $740 to repair

no lights staying on all good.

Chevrolet screwed all ( late 02)-03-06-(07 early) truck buyers when they put these crappy circuit boards and clusters in our trucks these years

Like A Rock (Bunch of Rocks)

Don't know why there was not a more extensive class action law suit against GM/Chevrolet about theses junk gauge clusters

I still Love my Truck 03 1500HD LT Crew

But come on GM/Chevrolet Step up do the right thing stand behind your product!!!!!