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Home >> Dodge and Ram >> 2021 >> ProMaster 2500 >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P2174 To U1412 >> DTC Troubleshooting >> U0405-Implausible Data Received From Cruise Control Module >> Diagnostic Test

Diagnostic Test

ACTIVE DTC 

  1. Test drive the vehicle and operate speed control.
  2. With the scan tool, read DTCs.

    Is the DTC active?

    Yes 

    • Refer to DTC TROUBLESHOOTING and perform the appropriate speed control DTC diagnostic procedure.

    No 

    • Test complete, the condition or conditions that originally set this DTC are not present at this time. Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .