ABS Module can not be reprogrammed
Hi there,
Last week my Savana 3500 cutaway truck's ABS light and Brake both came on, and couple minutes later all meters on dash board stopped working, and transmission shifted jerk. I checked online and learned that I need to replace my ABS module, which was found burned damaged when I unplugged it from the truck. Then I purchased a new module and plugged back in, all of those bad things went away, but ABS light and Brake light are still on. I checked online said that the new module may need to be reprogrammed by a GMC dealer after plugged in, then I came to a local dealer to reprogram it
Last week my Savana 3500 cutaway truck's ABS light and Brake both came on, and couple minutes later all meters on dash board stopped working, and transmission shifted jerk. I checked online and learned that I need to replace my ABS module, which was found burned damaged when I unplugged it from the truck. Then I purchased a new module and plugged back in, all of those bad things went away, but ABS light and Brake light are still on. I checked online said that the new module may need to be reprogrammed by a GMC dealer after plugged in, then I came to a local dealer to reprogram it
Experienced mechanics share their insights in answering this question :
Hello. I would first contact the vendor who sold you the new ABS module. Reputable dealers and ABS module rebuilders are pretty good at guiding you through the "programming" aspect of this replacement. While there are some ABS modules that are not rebuildable, this is the first time that I have heard of a series that cannot be reprogrammed.
You might also check with another GMC service center, explain your prior GMC dealer story about "not-reporgrammable ABS," and see what they have to say. This may be an issue of "didn’t buy it here – won’t do the service on it". ABS module circuit boards (in virtually all vehicles) are in a hot and high vibration environment. The solder joints on the printed circuit boards sometimes crack or otherwise fail, losing conductivity, and the ABS module no longer works properly. If you need to have this checked by another technician, a certified professional from YourMechanic can come to your car’s location to diagnose the ABS module and advise you on the best course of action.
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The ABS control module is a microprocessor that runs diagnostic checks of a vehicle`s antilock braking system and processes information from wheel-speed sensors and the hydraulic brake system to determine when to release braking pressure at a wheel that`s about to lock up and start skidding.
The ABS module in most cars should be located on the driver`s side front corner of the engine compartment. The hard brake lines should be attached to the unit, which should help you locate your car`s module.
The ABS module will need to be programmed once everything is installed. This procedure also will vary quite a bit depending on the manufacturer. Tip: For this step in the ABS module replacement procedure, refer to the manufacturer`s instructions to find the specific programming procedure.
The ABS system is made up of the ABS module, and ABS sensors at each wheel. The sensors detect wheel speed, and will send a message to the ABS module to rapidly pump the brakes when it is detected that the vehicle is skidding or has lost traction.
In fact it can only be programmed once, so it will stay programmed to it`s original car. That won`t matter, though since they are similar cars.
ABS module repairs can be done right in your driveway. Competitive, upfront pricing. Professional, ASE-certified technicians perform the repairs.
The anti-lock function will stop working properly, which may increase the distance it takes to safely stop your vehicle. The rear tires will lock, which will increase vehicle swing on turns and may make your vehicle more difficult to control.
In order to operate, your ABS system needs electricity. This is controlled by the anti-lock fuses and relay. The first fuse (a 10 amp fuse) must be good in order for electricity to flow to the relay, and the relay must function to provide power to the second fuse (a 30 amp fuse).
Locking while braking – If the ECU stops working, the ABS system will not be able to function.
An ABS system makes use of a car`s ECU (Electronic Control Unit, or “brain”), which is connected to speed sensors on each wheel.
The frequencies and amplitudes of the alternating voltage are related to the wheel speed. The sensor creates a AC signal that changes frequency as the wheel changes speed. The ABS control unit converts the AC signal to a digital signal for interpretation.
An ABS sensor is a wheel speed sensor that helps your car`s ABS system know when to engage. The ABS system is designed to kick in during emergency braking situations to help prevent your wheels from locking up. This, in turn, helps you maintain control of your vehicle and avoid accidents.
The most convenient means of reprogramming is the use of the DLC interface. This can be accomplished with a scan tool or an SAE J2534 pass-through interface.
WHAT IS ABS? ABS stands for Anti-lock Braking System, a key safety feature in most modern cars and trucks. Anti-lock brakes work with a car`s regular brake system by automatically pumping them in the event of a sudden stop.
The ABS controller/modulator is the heart of any ABS or ESC system. The modulator gets the brake pressure from the master cylinder. Inside are the valves and solenoids that control the pressures to the wheel. During normal operation, the pressure from the master cylinder goes through the HCU unaltered.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Chrysler 300 2005 abs not working. Code c2116. Does this mean my abs pump is dead for sure? Or could it be abs sensors.
ANSWER : Hi there. Take a digital volt meter and check the voltage on the harness to the ABS control motor. There should be a battery voltage present. If the voltage is low, then there is a break in the wiring from the computer to the ABS control motor. If the voltage is normal, then the ABS control motor has a burned cell and the ABS controller assembly would need replaced. This will effect the ESP system as well and set off the lights. If you need further assistance with your ABS system not working, then seek out a professional, such as one from Your Mechanic, to help you.
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ABS Module can not be reprogrammed
ANSWER : Hello. I would first contact the vendor who sold you the new ABS module. Reputable dealers and ABS module rebuilders are pretty good at guiding you through the "programming" aspect of this replacement. While there are some ABS modules that are not rebuildable, this is the first time that I have heard of a series that cannot be reprogrammed.
You might also check with another GMC service center, explain your prior GMC dealer story about "not-reporgrammable ABS," and see what they have to say. This may be an issue of "didn’t buy it here – won’t do the service on it". ABS module circuit boards (in virtually all vehicles) are in a hot and high vibration environment. The solder joints on the printed circuit boards sometimes crack or otherwise fail, losing conductivity, and the ABS module no longer works properly. If you need to have this checked by another technician, a certified professional from YourMechanic can come to your car’s location to diagnose the ABS module and advise you on the best course of action.
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Repaired ABS module installed, but lights on and not shifting properly
ANSWER : Hello. This can be caused by a few different things, but most of the time it is caused by the transmission speed sensors. I usually test the sensors first and replace them if needed. This is going to be the most likely issue. If they are fine, then you may have a circuit problem so the wiring will need to be tested for any breaks or shorts that would cause this. If you need to have this done, consider YourMechanic, as a certified mechanic can come to your home or office to inspect your shifting issue and diagnose the trouble codes found on your car.
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How do I fix my noisy and vibrating Abs module?
ANSWER : Hello there, the ABS module is an important safety feature on your 2008 Toyota Corolla. If the ABS module is failing and it has been diagnosed to be faulty then it should be replaced. There are further tests than just scanning that can be done to confirm the ABS module is faulty before it is replaced. A qualified Technician such as one from YourMechanic will be able to confirm your ABS module is faulty and make any repairs required to resolve the issue.
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What should i check before replacing the ABS module
ANSWER : Hello There,
It sounds like you may have some faulty wheel speed sensors that may be causing the ABS light to come on. Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car’s ECU. When the ECU senses an abnormal speed given specific conditions, it engages the ABS or traction control as needed to control the vehicle properly and safely. Occasionally, these sensors can fail or become faulty working intermittently sending inaccurate signals to the ECU. The ABS or traction control system may be inadvertently activated by these false or inaccurate signals. I would suggest having a professional from Your Mechanic come to your home to diagnose your ABS and traction control system.
It sounds like you may have some faulty wheel speed sensors that may be causing the ABS light to come on. Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car’s ECU. When the ECU senses an abnormal speed given specific conditions, it engages the ABS or traction control as needed to control the vehicle properly and safely. Occasionally, these sensors can fail or become faulty working intermittently sending inaccurate signals to the ECU. The ABS or traction control system may be inadvertently activated by these false or inaccurate signals. I would suggest having a professional from Your Mechanic come to your home to diagnose your ABS and traction control system.
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ABS light comes on when I start driving – 1994 Acura Vigor
ANSWER : There is the possibility of a deeper electrical problem like a broken wire or corrosion inside a wire that may be very difficult to pick up on. Have an automotive technician experienced in diagnosing electical bugs dig out the problem.
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Peter, are you able to sucessfully install a ABS module on a 1997 Ford Expedition and have the computer to rewrite code?
ANSWER : Hi there. The reprogramming the mechanic is referring to is something that can only be completed by a Ford dealership or authorized Ford repair specialist. Unfortunately, it’s not a service our mobile mechanics offer.
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transmission control module failing. We just replaced the computer module (pcm) 4 days ago?
ANSWER : The P0700 trouble code is a code for transmission control module (TCM) failure. Without knowing the other codes, it will not be possible to give you an accurate answer; it all depends on the other codes:
If you get a P0755 code, you may have a transmission solenoid pack issue.
P0725 indicates a likely crank position sensor issue.
I would suggest having your Check Engine Light diagnosed by a qualified mechanic.
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