The Chrysler U1120 code is an error code that is displayed when the Powertrain Control Module (PCM) doesn’t receive a bus message or receives an implausible bus message from the Anti-Lock Brake (ABS) Module. This code can be caused by various factors, ranging from a wiring issue with the wheel speed sensor to problems with the ABS module or Totally Integrated Power Module (TIPM). This can be an extremely serious issue and should be addressed as soon as possible to avoid further damage to the vehicle. When the Chrysler U1120 code appears, a professional mechanic should be consulted to diagnose the exact cause and provide a solution.
Causes & Solutions for Chrysler U1120 Code
| Cause | Solution |
|---|---|
| Wheel Speed Sensor Wiring Issue | Check wiring and replace any damaged wires. |
| Wheel Speed Sensor | Replace the wheel speed sensor. |
| Anti-Lock Brake (ABS) Module | Replace the ABS Module. |
| Totally Integrated Power Module (TIPM) | Replace the TIPM. |
Wheel Speed Sensor Wiring Issue
The Chrysler U1120 code can be caused by a wiring issue with the wheel speed sensor. This can be due to corroded, damaged, or loose wires. To diagnose this issue, a mechanic should check all the wiring and replace any damaged or corroded wires.
Wheel Speed Sensor
If the wiring issue is not the cause of the code, then the wheel speed sensor is more likely the culprit. This is a more serious issue and will require the replacement of the wheel speed sensor. A mechanic should replace the wheel speed sensor to resolve the issue.
Anti-Lock Brake (ABS) Module
The ABS module can also cause the Chrysler U1120 code. If the ABS module is not functioning correctly, then it can cause the code to be displayed. If this is the cause of the code, then the ABS module needs to be replaced.
Totally Integrated Power Module (TIPM)
The Totally Integrated Power Module (TIPM) can also cause the Chrysler U1120 code. If the TIPM is not functioning correctly, then it can cause the code to be displayed. If this is the cause of the code, then the TIPM needs to be replaced.
Conclusion
The Chrysler U1120 code can be a serious issue and should be addressed as soon as possible. Various factors can cause the code, ranging from wiring issues with the wheel speed sensor to problems with the ABS module or Totally Integrated Power Module (TIPM). When the Chrysler U1120 code appears, a professional mechanic should be consulted to diagnose the exact cause and provide a solution.
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