U0129 FORD code

What does lost communication with TCM mean?

It means that the transmission control module is not communicating with one or more modules that are connected with it through the CAN bus/controller area network system.

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 code U0155?

Error code U0155 indicates that there’s a loss of communication with your Instrument Panel Cluster Control Module (IPC). This occurs when the Powertrain Control Module (PCM) notices that it can no longer communicate with the IPC properly.

Will disconnecting battery reset TCM?

Will disconnecting the battery reset TCM? Simply disconnecting the battery would not return the TCM to its default settings, you would need to use a transmission scan method to do so. Disconnecting the battery terminals will not complete the phase or solve any gear shift issue.

How do I reset my TCM?

Will disconnecting the battery reset TCM? Disconnecting the battery can cause issues and any other power disconnection. Disconnecting the battery will reset the TCM and erase all of your radio presets, clock, and door lock codes.

Where is the brake control module located?

engine bay

It is mounted in the engine bay, typically alongside the brake fluid reservoir. It receives signals from the several sensor inputs, and compares the current status of the sensors to all the logical maps and associated reactions in its onboard memory.

How do I reset my ABS control module?

Zitat von Youtube: Do not start your engine just turn it to the on position. And you'll know it's on when all the lights start illuminating. And step number 2 come down below and three quick presses of your gas pedal.

How much does it cost to replace ABS control module?

between $320 and $1,000

The total cost of parts and labor to replace an ABS control module can be anywhere between $320 and $1,000 depending on the cost of the control module itself and how difficult it is to find. Despite the cost, you should replace your cars ABS control module if: The brakes lock up even when you are driving normally.

How do I fix code U0121 00?


  1. Check the Anti-Lock Brake (ABS) Control Module and connections.
  2. If necessary, check for known ABS issues (faulty wheel speed sensor(s), etc.)
  3. Perform a PCM Scan Tool Data Listening Test to determine if there is an ABS exchange of information between modules.

What causes ABS control module to fail?

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.