Jeep Code U0401 is a diagnostic trouble code associated with a problem in receiving implausible data from the Powertrain Control Module (PCM) to the Active Damping Control Module (ADCM). This code is prevalent in Jeep vehicles and can cause several issues in the vehicle’s running and performance. To understand the cause of this error code and to identify potential solutions, let us look into the reasons and answers related to this code.
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Causes and Solutions for Jeep Code U0401
| Cause | Solution |
|---|---|
| ACTIVE DAMPING CONTROL MODULE (ADCM) CAN BUS DTCS | Check and repair the wiring and connectors related to the ADCM. |
| POWERTRAIN CONTROL MODULE (PCM) DTCS | Replace the PCM with a new one. |
| ACTIVE DAMPING CONTROL MODULE (ADCM) | Replace the ADCM. |
| POWERTRAIN CONTROL MODULE (PCM) | Check the PCM for any internal faults. |
ACTIVE DAMPING CONTROL MODULE (ADCM) CAN BUS DTCS
When the Jeep Code U0401 is triggered, it is most likely due to active damping control module (ADCM) CAN bus DTCs. The CAN bus is the communication line between the powertrain control module (PCM) and the active damping control module (ADCM). If this communication line is damaged or the connection is faulty, it will cause the Jeep Code U0401 to be triggered. To fix this issue, checking and repairing the wiring and connectors related to the ADCM is essential.
💥See also: Jeep Code U0131
POWERTRAIN CONTROL MODULE (PCM) DTCS
Another possible cause for the Jeep Code U0401 in powertrain control module (PCM) DTCs. If the PCM is faulty, it can cause the Jeep Code U0401 to be triggered. In this case, replacing the PCM with a new one is recommended to resolve the issue.
⚡️Other article: Jeep Code P0426
ACTIVE DAMPING CONTROL MODULE (ADCM)
The active damping control module (ADCM) can sometimes cause the Jeep Code U0401. If the ADCM is faulty, it can cause the Jeep Code U0401 to be triggered. To fix this issue, replacing the ADCM with a new one is essential.
POWERTRAIN CONTROL MODULE (PCM)
The powertrain control module (PCM) can also cause the Jeep Code U0401 to be triggered. It is essential to check the PCM for any internal faults that may cause the Jeep Code U0401 to be activated. If there are any faults, replacing the PCM with a new one is important.
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Conclusion
Jeep Code U0401 is a diagnostic trouble code that is associated with a problem in receiving implausible data from the Powertrain Control Module (PCM) to the Active Damping Control Module (ADCM). Identifying the cause of this error code is essential to resolve the issue. The four most common causes of the Jeep Code U0401 are active damping control module (ADCM) CAN bus DTCs, powertrain control module (PCM) DTCs, functional damping control module (ADCM) and powertrain control module (PCM). The solutions vary depending on the cause but typically involve checking and repairing wiring and connectors, replacing the PCM or ADCM, or checking the PCM for any internal faults. By understanding the Jeep Code U0401 and the associated causes and solutions, you can diagnose and resolve any issue related to this code.