U0401 JEEP - Invalid Data Received From ECM/PCM
U0401 JEEP Possible Causes
- Faulty Powertrain Control Module (PCM)
- Powertrain Control Module (PCM) harness is open or shorted
- Powertrain Control Module (PCM) circuit poor electrical connection
- Faulty Transmission Control Module (TCM)
First diagnose U0401 JEEP code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the U0401 JEEP code
Labor: 1.0The cost of diagnosing the U0401 JEEP code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
U0401 JEEP Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
U0401 Jeep DescriptionThis diagnostic checks the validity of the two Control Area Network (CAN) messages sent by the Powertrain Control Module (PCM) containing information about the engine torque. The diagnostic checks the validity by performing a CRC and message counter check be sure the CAN messages are continuously updated by the PCM and they contain valid values.
U0401 JEEP More InformationNeed more information on how to fix the U0401 JEEP code?
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