Body Control System

U0401-IMPLAUSIBLE DATA RECEIVED FROM ECM (FDCM)

- When Monitored:
With the ignition on for 4 seconds, no CAN BUS circuit error condition present, no lost communication with PCM condition present, and no system undervoltage or overvoltage condition present.
- Set Condition:
The Final Drive Control Module is receiving implausible data for pedal position, engine RPM, torque, or engine coolant temperature from the PCM.

Possible Causes
POWERTRAIN DTCS PRESENT
FINAL DRIVE CONTROL MODULE (FDCM)

Diagnostic Test
1. POWERTRAIN DTCS PRESENT
Ignition on.
With the scan tool, read DTCs in the Powertrain Control Module.
Are there any DTCs present?
Yes >>Perform the applicable diagnostic procedure. Perform the TRANSFER CASE VERIFICATION TEST-VER 1 Transfer Case Verification Test
No >>Replace the Final Drive Control Module. Perform the TRANSFER CASE VERIFICATION TEST-VER 1 Transfer Case Verification Test