What is the problem with the u0121 code?
If you can access codes from the ABS module, then the U0121 code is either intermittent or a memory code. If unable to access codes for the ABS module, then the U0121 code that the other modules are setting is active, and the problem is there now.
What does it mean when your ABS module says u0121?
Code U0121 indicates the ABS module is not receiving or transmitting messages on the CAN bus. Code U0121 is typically caused by one of the following: Sometimes U0121 can pop up intermittently, or it can result from a dead battery.
What does the code u0121 on a CAN bus mean?
At the ends of the bus, there are two terminating resistors. Code U0121 indicates the ABS module is not receiving or transmitting messages on the CAN bus. Code U0121 is typically caused by one of the following:
Why do I have a code u0155 on my car?
In some cases, the vehicle may not start. In some cases the instrument cluster fails, but when this happens other codes may be present, most often code U0155. How do you troubleshoot code U0121?
What does code u0121 mean on a car?
What does 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.
Code U0121 indicates the ABS module is not receiving or transmitting messages on the CAN bus. Code U0121 is typically caused by one of the following: Sometimes U0121 can pop up intermittently, or it can result from a dead battery.
What causes the history code u0121 to pop up?
Code U0121 is typically caused by one of the following: Sometimes U0121 can pop up intermittently, or it can result from a dead battery. This is especially true if the code is a history code and not current. Clear the code and see if it returns. If it does, the next step is to perform a visual inspection.
What does RSC stand for in Ford Explorer?
Thank Ronny. RSC stands for Roll Stability Control. It is a form of stability control. The RSC works in conjunction with the anti-lock brake system to help regain control of the vehicle if it goes into a spin or slide.