Nissan Rogue Service Manual: U0100 lost communication (ECM A)

Nissan Rogue Service Manual / Transmission & driveline / Transaxle & Transmission / Dtc/circuit diagnosis / U0100 lost communication (ECM A)

DTC Description

DTC DETECTION LOGIC

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
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.

POSSIBLE CAUSE

ECM
Harness or connector (CAN communication line is open or shorted)

FAIL-SAFE

Selector shock is large
Start is slow
Acceleration is slow
Lock-up is not performed

DTC CONFIRMATION PROCEDURE

1.PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

Start the engine and wait for at least 5 seconds.
Check the DTC.

Is “U0100” detected? YES >> Go to TM-96, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

For the diagnosis procedure, refer to LAN-17, "Trouble Diagnosis Flow Chart".

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