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Home >> Jeep >> 2009 >> Commander Overland, 4WD >> Repair and Diagnosis (Single Page) >> Transmission >> Transfer Case >> (Final Drive Control Module (FDCM) - Electrical Diagnostics) >> DTC Troubleshooting >> U0401-Implausible Data Received From ECM (FDCM) >> Diagnostic Test
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Diagnostic Test

  1. POWERTRAIN DTCS PRESENT 
    1. Ignition on.
    2. With the scan tool, read DTCs in the Powertrain Control Module.

      Are there any DTCs present?

      Yes 

      No