Nissan Rogue (T33) 2021-Present Service Manual: U0140 Can Communication

Nissan Rogue (T33) 2021-Present Service Manual / Engine :: Engine Control System / Kr15ddt :: Dtc/circuit Diagnosis / U0140 Can Communication

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
U0140 00

LOST COMM (BCM)

(Lost Communication With Body Control Module) 		Diagnosis condition Ignition switch ON
Signal (terminal) —
Threshold When ECM is not receiving CAN communication signal of OBD (emission-related diagnosis) with BCM.
Diagnosis delay time 30 seconds or more

POSSIBLE CAUSE

  • Harness or connectors (CAN communication line is open or shorted.)

  • BCM

FAIL-SAFE

Engine Control System

Not applicable

Stop/Start System

When a DTC is detected, the stop/start indicator lamp blinks slowly and the stop/start system operation is prohibited.

When ECM detects error while operating the stop/start system, ECM restarts the engine.

DTC Confirmation Procedure

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

  1. Ignition switch OFF and wait at least 10 seconds.

  2. Ignition switch ON.

  3. Ignition switch OFF and wait at least 10 seconds.

>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Ignition switch ON and wait at least 10 seconds.

  2. Check DTC.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Perform trouble diagnosis of CAN communication system. Refer to Trouble Diagnosis Flow Chart.

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