What is code u0129?

This code means that the Brake System Control Module (BSCM) and other control modules on the vehicle are not talking to each other. The circuit most often used to communicate with is known as Controller Area Network bus communications, or simply put, CAN bus.

What is lost communication with body control?

What Does the U0140 Code Mean? U0140 is a generic diagnostic trouble code (DTC) that stands for “Lost Communication With Body Control Module.” This code generally means that the BCM isn’t properly transmitting or receiving signals.

What is the brake control module?

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.

What is U0121 code?

What does OBD-II fault code U0121 mean? Code U0121 stands for Lost Communication with Anti-lock Brake System Module. Anti-lock brakes are required on all modern vehicles. The antilock braking system (ABS) prevents wheel lockup by modulating the brakes in an emergency situation.

What is control module communication bus off?

Diagnostic trouble code (DTC) U0073 stands for “Control Module Communication Bus “A” Off.” OBD code U0073 is a communication system DTC that applies to most vehicles. Usually, this code is triggered when communication is lost intermittently or fully between your vehicle’s control modules.

How do I fix U0073 code?

How to diagnose and repair U0073

1. Perform a preliminary inspection. Sometimes U0073 can pop up intermittently, or it can result from a dead battery.
2. Check for a faulty control module. After the preliminary inspection, an expert will check for a defective control module.
3. Check the network.

What causes U0100 code?

Code U0100 is typically caused by one of the following: A faulty PCM. A problem with the control module circuit. A problem with the CAN bus.

How do I know if my ABS control module is bad?

Signs Of A Faulty ABS Module

1. The ABS Warning Light Glows. This is the most common sign of problems with the ABS system.
2. The Brakes Lock Up. The ABS system is specifically designed to prevent any wheel from locking up during heavy braking.
3. An Unresponsive Brake Pedal.
4. Increased Pedal Effort.
5. Speedometer Failure.

What is vehicle communication bus A?

A vehicle bus (not to be confused with the vehicle known as a bus) is a specialized internal communications network that interconnects components inside a vehicle (e.g., automobile, bus, train, industrial or agricultural vehicle, ship, or aircraft).

What does the diagnostic trouble code u0121 mean on a Ford?

The Diagnostic Trouble Code (DTC) U0121 sets when the PCM fails to receive the Anti-lock Brake System (ABS) message within the defined amount of time. | Need more information with the U0121 FORD code?

What to do if you have a u0129 code on your car?

If all tests have passed and communication is still not possible, or you were unable to clear the U0129 fault code, the only thing left that can be done is to seek assistance from a trained automotive diagnostician, as this would indicate a failed BSCM module.

How do I find the u0129 code on a scan tool?

If your scan tool can access fault codes and the only one you retrieve from other modules is the U0129, try to access the BSCM module. If you can access codes from the BSCM module, then the U0129 code is either intermittent or a memory code.

What does the u0129 code on the BSCM module mean?

If you can access codes from the BSCM module, then the U0129 code is either intermittent or a memory code. If unable to access codes for the BSCM module, then the U0129 code that the other modules are setting is active, and the problem is there now.