Help: ABS Brake Service Light

[kivetts04dmax]

I swapped my lift and steering components from my reg cab to my ccsb and from my ccsb to my reg cab, everything was working 100% on both trucks before, but now I have the ABS and Parking brake service lights on and the chiming. The connectors are clean, the wiring on the sensors look good (newer wheel bearings) and I even took a wheel bearing I knew was good and plugged into each connector and nothing. The truck doesn't even have to be on or moving for the lights/codes to come on. I haven't seen anyone have the same symptoms as me so other threads weren't helpful. Codes are C0035 and C0040

 

[kivetts04dmax]

Bump

 

[Dirtymaxx03]

what size tires are you running/ what tire size is the tune set to?

 

[dmax711]

I would bet wheel speed sensor.

 

[mackthehack]

Possibly a tuning adjustment needs to be done to calibrate tires and speedo. Drive on the freeway. Monitor a hand held gps to track your speed and look at the speedometer. To see if they match.

Possible sensor is bad.

Gap or spacing not at the proper distance from tone ring to sensor. Maybe a sensor is not completely seated in its proper location. Dirty or grime causing it not to sit properly.

A wrong tone ring on hub.

Did you check the speed sensor on the tcase and its wiring?

 

[kivetts04dmax]

yea I went from 305/55/20s to 265/75/16s, I didn't know that could be an issue..

 

[Dirtymaxx03]

if the actual tire size is too far off from what the tune is set up for, it will make the ABS do weird things. And when that light comes on and all that shit, remember you dont have anti lock brakes so be easy or you will shit yourself. ask me how i know haha

 

[kivetts04dmax]

haha thanks! I would of never thought that, I contacted Mike M. and he just told me to change tire size and flash it, hopefully that will solve the problem because it should be sold this week and I need to get an alignment still haha

 

[Dirtymaxx03]

yeah give that a try. theres an actual vs desired speed area you can change it at.

 

[kivetts04dmax]

I'm not very computer savi and efi looks foreign to me so I'm sure I will have many questions, hopefully I don't wipe out the tunes or something:/ I was told I have to pull the file, save it, change it, then flash it..

 

[Dirtymaxx03]

Man I haven't open the Efi live software in a long ass time. But you'll have to make the changes then save and reflash. It's real easy to do, I just can't remember exactly where you go to make the changes.

 

[kivetts04dmax]

I opened the tune tool, speedo, parameters then changed tire size now it can't find ECM, damn LLYs!!!!!!!

Is there another way to change tire size or is that fine?

 

[kivetts04dmax]

and now no vehicle detected lol fml

 

[Chevy1925]

Tire size will not affect your abs unless you try programming over 34.5 or change your gear ratio.

 

[kivetts04dmax]

gear ratio is 3.73 and tire size is now 31.65 and it's still throwing codes

 

[Chevy1925]

You either have damaged the wires/sensors or you need to go drive it real quick if you have yet to drive it since the swap

 

[kivetts04dmax]

how much should I drive it? I have only went around the block a couple times since I swapped everything..tie wires look good and shouldn't have gotten pinched, my LBZ is doing good..idk, hopefully I just need to drive it:/

 

[Chevy1925]

You need to get above 25mph just once. If you did and the lights didn't go off, it's a connection/pickup issue

 

[kivetts04dmax]

I'll go get some fuel in it or something and see what it does

 

[kivetts04dmax]

Took it out for a drive, now I'm throwing all sorts of codes, almost like I deleted the tuning, it still drives like it's tuned but has vein sensor code, egr code, low boost, stuff like that..?