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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (Re0F10J) (Diagnostic Trouble Codes (DTCS), Symptom Diagnosis And R & I) (Except Hybrid) >> DTC/Circuit Diagnosis >> DTC U0100: Lost Communication (ECM A) >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition Possible causes
U0100 LOST COMM (ECM A)
(Lost Communication With ECM/PCM A)
When the ignition switch is ON, TCM is unable to receive the CAN communications signal from ECM continuously for 2 seconds or more.
  • ECM
  • Harness or connector

    (CAN communication line is open or shorted)