Repaired ABS module installed, but lights on and not shifting properly
The flashing transmission arrow and the ABS light recently started blinking. Another thing is that the speedometer sometimes stops working and the transmission poorly shifts. I sent the ABS module off for repair. After I installed the repaired module, the ABS light went off, but the flashing transmission arrow remained on and the check engine light stayed on too. Since then (after reinstalling the module), I’ve driven over 1k miles. The lights are still on. Also, before and after installing the repaired ABS module, I got these error codes: P1618, P0705, P0717, P0722. Since then, I’ve reins
Experienced mechanics share their insights in answering this question :
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.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
The Brakes Lock Up
A bad ABS module can behave erratically, making your brakes lock up even under normal braking. You might even notice unusual behavior from the brakes, like random clicking noises.
The most common ABS problems occur when sensors become contaminated with debris or metal shavings. Malfunctions also occur when sensor wiring becomes damaged, resulting in intermittent or no continuity.
ABS module repairs can be done right in your driveway. Competitive, upfront pricing. Professional, ASE-certified technicians perform the repairs.
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.
Resetting Your ABS Dashboard Warning Light
Step One: Disconnect the positive cable from your car battery. Then, hold down the brake pedal to drain the vehicle`s electrical system. This will result in a reset of the car`s central computer. Plug the cable back in to restore power.
Occasionally, these sensors can fail or become faulty working intermittently sending inaccurate signals to the ECU. In your case it may be possible that the transmission is receiving a faulty signal from the ABS system.
The ABS pump is not repairable but a system failure doesn`t always mean that it has to be replaced. Frequently the pump operation is affected by a failure of its controller. The controller is repairable; however, you need specialist tools to fix it.
All you have to do is connect the device to your OBD2 carport and run an ABS test. From there, you will have a clearly identified trouble code about what is wrong with the ABS. With this pinpointed information, you can easily diagnose and fix the issues with your vehicle.
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.
Can I still drive my car with the ABS module removed? Yes, you can still drive without your ABS module. Before the ABS was invented in the 1990`s, all cars drove without it.
If the ABS system is not functioning properly, then your vehicle is likely to skid, hydroplane and lose traction under heavy braking conditions. The last time you want to find this out is when you need it most in tough conditions, which could lead to an accident on the road.
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.
If the ABS light on the instrument panel illuminates, our technicians recommend checking the battery first. A weak battery can cause the ABS light to turn on. A brake light that is not working or has burned out can also cause the ABS light to illuminate.
Transmission Range Sensor (TR)/ Transmission Position Sensor
The PCM uses this information to control which gears of the transmission to enable or disable. When the TR sensor fails it can cause wrong gear starts, no upshifts, or what feels like a falling-out-of-gear condition.
The ISS sensor monitors the input shaft`s speed. If these sensors get misaligned, the operation of the transmission system will be affected.
With a bad ABS control module, there are chances to lose traction because of high brake pressure on one set of wheels than the rest. You must avoid driving with a bad ABS module as it can lead you to dangerous situations with poor traction control.
If your ABS light comes on individually, you are safe to drive your car to your destination, as your normal brakes will still work. You will, of course, have to be more careful as your ABS will not respond in case of an emergency.
If your ABS sensor goes bad, can you still drive your car? The answer is yes, but it`s not ideal. ABS sensors are important for keeping your car stable and stopping properly in difficult conditions.
If your ABS warning light came on alongside the brake warning light then it is not recommended to drive the vehicle as both brake monitoring systems are experiencing issues and need immediate attention. We recommend towing the vehicle to a shop at this point and avoid driving it.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
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.
Read Full Q/A … : Repaired ABS module installed, but lights on and not shifting properly
Abs light, emergency brake light, steering wheel assist light, engine light, EPC light, traction control light
ANSWER : Hello, thank you for writing in. The vehicle does utilize a lot of the same sensors for these systems. Are there any other codes that are coming up when this code appears? If so you will want to take these into consideration when processing the repair and making a diagnosis. The module may be bad, and replacing it should fix the problem. The lights should turn off once the main computer recognizes the new module and the sensors sync up. If you believe the sensors need to be cleaned you may do so. Do as minimal as possible to make sure you are not damaging the sensor or disrupting the wiring inside. A bad connection would make the lights stay on. With so many lights that are effected by the module being illuminated, the module is likely bad or does not have a connection. Check the connection first and then resort to replacing the unit. For more help with these electrical tests, contact our service department.
Read Full Q/A … : Repaired ABS module installed, but lights on and not shifting properly
Battery light goes on when I start car then turns off, if I rev engine light comes back until rpms go down. Abs goes comes on/off
ANSWER : Batteries can die due to faults in the charging system so ideally a suspected "faulty" battery should be load tested before a decision is made to condemn it. The only exception to this rule is if the battery is already clearly "old" (greater than 5 years) but even then once you put a new battery in, as a replacement for a "dead" battery, you have to comprehensively check out the charging system. Diagnostic Trouble Code P0460 will result in disruption of the dashboard fuel gauge’s ability to accurately report your tank’s fuel levels. The fuel gauge readings may be erratic, or read somewhere off scale. Vehicles equipped with a low fuel warning light feature may also suffer from erratic low fuel warnings in the event of a code P0460. Unless the P0460 code has been reported alongside other trouble code, all of the vehicle’s essential systems should otherwise function normally. I would recommend that you request a check engine light diagnostic to first resolve the fault causing the P0460 code to set. The check gas cap light warning light could be due a faulty gas cap and/or small leaks in the EVAP system.
Read Full Q/A … : Repaired ABS module installed, but lights on and not shifting properly
No dash lights, back right tail light is out, no parking lights. Brake lights work though as does head lights.
ANSWER : Hi there. In many cases, when you have electrical problems like you’re describing, it’s caused by multiple electrical component failure. It’s likely that a few electrical relays are not working; especially if you have systems that utilize the same components (such as your brake light and tail lights). I would recommend having a professional mobile mechanic come to your location to complete an electrical problems inspection first, so they can pinpoint what is damaged and recommend the right repairs.
Read Full Q/A … : Repaired ABS module installed, but lights on and not shifting properly
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.
Read Full Q/A … : Repaired ABS module installed, but lights on and not shifting properly
ABS light on, ESP light on,Traction OFF light on, engine light on, rides perfectly OBDI reads only Front Right Wheel Speed Sensor
ANSWER : If a faulty component is still in place, the fault codes will return almost immediately after clearing them. ABS, ESP, and traction control systems all rely on input from wheel speed sensors to determine as the name implies, the speed of each wheel. When a wheel, or wheels are spinning faster than others due to wheel slip or the vehicle is sliding, the ABS and ESP systems can reduce throttle input as well as apply braking to an individual wheel or all of them if needed. With a wheel speed sensor fault code stored, these systems cannot determine the rate that all 4 wheels are spinning and sets a fault. That is why the abs/esp light is on. The system should be scanned by a certified technician and the wheel speed sensor replaced if found to be the cause. The warning lights will stay on and these systems will not function as designed until the fault is corrected. These lights do not come on to indicate a need for routine service. Rather they only come on when a component in the system is at fault.
Read Full Q/A … : Repaired ABS module installed, but lights on and not shifting properly
While driving on freeway truck goes into a limp mode, and the check engine light, abs light, parking break light, service brake
ANSWER : It is possible that you could be having an issue with your powertrain control module. This is somewhat of a common problem on many GM vehicles. I would recommend having your vehicle inspected by the dealership to determine if the powertrain control module is functioning properly. If not, a reflash of the powertrain control module may resolve the issue but often times it must be replaced.
Read Full Q/A … : Repaired ABS module installed, but lights on and not shifting properly
Instrument cluster on the dash, tachometer bounces, speedometer at 0. Unplugged ABS module, speedometer at 0. doesn’t shift gears
ANSWER : Hello. There are a lot of possible issues that can cause this. Most of the time this is either due to a short in the ABS module or it may just be a voltage issue. I would usually start by making sure that the battery and alternator are in good shape. If they are good, then I check the connections at the battery and the ground connections. Any of these will cause this issue if they are interrupting the voltage supply. If those are all fine, then it will need a new ABS module. I recommend having another expert provide an inspection for the car. A qualified professional from YourMechanic can inspect the relevant electrical systems in order to diagnose the problem and advise you on correct repairs.
Read Full Q/A … : Repaired ABS module installed, but lights on and not shifting properly
