How do to replace the abs control module? - 2006 Chevrolet Trailblazer

If your ABS light is on in your 2002 Jaguar X-Type, it's likely because the ABS Control Module has failed and needs to be replaced. The good news is that you can use an ABS Control Module from another Jaguar X-Type as a replacement, as long as it's from the same year. Simply remove the old module and install the new one in its place. If your Jaguar is still under warranty, you may be able to have the dealer replace the module for free.

Jesse, The module will not stop fluid to rear brakes, a bad master cylinder will,leaking lines, air in brake system, faulty metering block if equipped, collapsed flex lines or pinched brake line faulty caliper or brake cylinders,etc. will cause the possible feeling of no rear brakes.
(ABS Module components) the ABS speed sensors and the ABS control module . When the brake is applied, the ABS control module reads the speed data from the speed sensor and sends the correct pressure to each wheel to prevent any wheel lock up, eg. sliding/skidding Links below have more info.
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Service Stability System AND abs Pump issue

ABS Control Module Replacement Service Cost YourMechanic

https://www.rockauto.com/en/catalog/cadillac,2002,escalade,5.3l+v8,1431695,brake/wheel+hub,abs+control+module,1844

The light being on means the system has detected a problem in one or more sensors. The vibration is the ABS modulating the brakes to prevent skidding because it has detected a wheel that is locked up. That wheel is most likely the one sensor that is giving you the error.

You can use a used one if you like or a rebuilt one, many companies do this. Just google it.

Dynamic Stability Control....a derivitave of ABS / Traction control. The control unit that monitors the dynamics will most likely be sensing a difference in the measured wheel speeds. Possibly defective ABS sensor, wiring, ABS exciter ring, ABS module or steering angle sensor. Can also be triggered by wheel spin.
Have a diagnostic scan done ( cost £30 - £50 approx at good local garage) to read the fault codes first. If you get a fault code relating to "ABS module pressure sensor" the module requires replacement (common issue). Used to be a £1400 job, but repair kit now available from dealer for £180 ish and 2 hours to fit.

When the ABS (Anti Lock Brake System) light is on it means the systems control module has detected a failure and the ABS is disabled, this means you just have regular non ABS brakes. To find out what the fault is requires the ABS control module be scanned with a special tool to see what fault codes show up.

The ABS system should be scanned to check where the problem is, however, the most common problem is in the control unit.

change the abs relay in the fuse box under the hood

THE EBCM IS BAD this is the electronic control module that is on abs pump. you can replace seperate I think it is around 500 for part

We have the same problem with our BMW. Dealer quoted close to $1500, with a one year parts warranty. Go to Module Masters at www.modulemasters.com.

They show detailed info on how to remove your unit, and will rebuild one for a 2001 XK8 for $150. The unit for our BMW is $300.

I have heard great comments about Module Masters. Well worth a shot!