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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (DTC/Circuit Diagnosis) (2 Of 2) >> Shift (Electric Shift Control Module) >> U0115-00 Lost Communication (ECM) >> DTC Description

DTC Description

DTC DETECTION LOGIC 

DTC CONSULT screen terms(Trouble diagnosis content) DTC detection condition
U0115 00 Lost communication (ECM/PCM B) (Lost Communication With ECM/PCM "B") Diagnosis condition When ignition switch is ON
Signal CAN communication signal
Threshold Electric shift control module cannot transmit or receive CAN communication signal of OBD (emission related diagnosis) with ECM.
Diagnosis delay time -

POSSIBLE CAUSE 

CAN communication line between ECM and electric shift control module (CAN communication line is open or shorted.)

FAIL-SAFE 

No impact to vehicle behavior