Nissan Rogue manuals

Nissan Rogue Service Manual: U1044 ENG comm circuit

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
U1044 ENG COMM CIRCUIT (Engine communication circuit A signal voltage of LIN communication between ECM and generator is excessively low or excessively high

POSSIBLE CAUSE

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

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

  1.  Turn ignition switch OFF and wait at least 10 seconds.
  2.  Turn ignition switch ON.
  3.  Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

  1.  Turn ignition ON and wait at least 10 seconds.
  2.  Check DTC.

Is DTC detected? YES >> Proceed to EC-173, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK LIN COMMUNICATION CIRCUIT

  1.  Turn ignition switch OFF.
  2.  Disconnect ECM harness connector and generator harness connector.
  3.  Check the continuity between ECM harness connector and generator harness connector.

Check lin communication circuit

  1. Also check harness for short to power and short to ground.

Is the inspection result normal? YES >> GO TO 2.

NO >> Repair or replace error-detected parts.

2.REPLACE GENERATOR

  1. Replace generator. Refer to CHG-20, "Removal and Installation".
  2.  Erase DTC.
  3.  Perform DTC confirmation procedure again. Refer to EC-173, "DTC Description".

Is DTC detected again? YES >> Replace ECM. Refer to EC-499, "Removal and Installation".

NO >> INSPECTION END

U1040 ENG comm circuit
DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition U1040 ENG COMM CIRCUIT (Engine communication circu ...

U1050, U1051 LIN communication
DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition U1050 LIN COMMUNICATION [LIN (Local Interconnect N ...

Other materials:

ECU diagnosis information
DIAGNOSIS SENSOR UNIT DTC Index DIAGNOSTIC CODE CHART NOTE: Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated using air bag warning lamp or CONSULT each time repair is finished. If malfunction is still observed, proceed ...

P0604 ECM
DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition P0604 ECM [Internal control module random access memory (RAM) error] Malfunction in the internal RAM of ECM. POSSIBLE CAUSE ECM FAIL-SAF ...

Difference between predictive and actual distances
Backing up on a steep uphill When backing up the vehicle up a hill, the distance guide lines and the vehicle width guide lines are shown closer than the actual distance. For example, the display shows 3 ft (1.0 m) to the place A , but the actual 3 ft (1.0 m) distance on the hill is the p ...

В© 2014-2025 Copyright www.nirogue.com