ABS and Brake light come together randomly. wonder if anyone else has had this problem
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ABS and Brake light come together randomly. wonder if anyone else has had this problem
did this start after you swapped gears?
brake Fluid level low?
Brake fluid level good. Yeah i believe it did after i swapped gears.
it has no abs sensors on the rearend though which is odd
hook scan tool up and look at ur abs history codes or current codes when light is on.they won't any current codes unless the light is on
Did you tune the PCM for the gear swap?
rear abs works off of speed sensor in trans
ebay...abs module rebuild. costs about 125 to fix. note: when both lights are on, your ABS brakes do not work.
tuned for the gears. Yeah i don't like not having the abs brakes especially in the rain. I just need to take it to the chevy dealer. I work at a ford dealership and we don't have the scanner for abs on chevy
Even with a retune for the gears, some trucks still will throw the occasional ABS/Brake light. Mine did it, and others on GMFS will say the same.
yea mine started doing the same thing after i swapped gears...it an abs code just plug a scan tool up to it and read wat code it is... mine said wheel speed mismatch or something like that
ok thanks guys.
There is a TSB for this. It has you clean a body ground.
Condition
Some customers may comment that the ABS light is on. Upon further inspection, DTCs C0265 and C0201 may be set in the brake module. It is also possible for DTC U1041 to set in other modules. There may also be a loss of communication with the brake module.
Cause
A poor connection at the EBCM ground is causing unnecessary replacement of brake modules.
Important:
The EBCM ground is different for each application. Refer to the list below for the proper ground reference:
^ Midsize Utilities = Ground 304
^ SSR = Ground 400
^ Fullsize Trucks and Utilities = Ground 110
Correction
Important:
Do not replace the brake module to correct this condition. Perform the following repair before further diagnosis of the EBCM.
Perform the following steps to improve the connection of the EBCM Ground:
1. Remove the EBCM Ground. The EBCM Ground is located on the frame beneath the driver's side door. If multiple grounds are found in this location, the EBCM ground can be identified as the heavy (12-gauge) wire.
2. If the original fastener has a welded on nut, remove the nut from the frame, and if required, enlarge the bolt hole to accommodate the new bolt and nut.
3. Clean the area, front and back, using a tool such as a *3M(TM) Scotch-Brite Roloc disc or equivalent.
4. Install the ground, then the washer and then the bolt to the frame.
Important:
It is important to use the bolts, washers and nuts specified in this bulletin. These parts have been identified due to their conductive finish.
5. Install a washer and nut to the back side of the frame.
Tighten
Tighten the nut to 9 Nm (79 lb in).
6. Cover the front and back side of the repair area using Rubberized Undercoating.