Nissan Rogue Service Manual: 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 circuit) | ECM cannot transmit a communication signal to generator. |
POSSIBLE CAUSE
- Harness or connectors (LIN communication circuit is open or shorted.)
- ECM
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.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
- Turn ignition ON and wait at least 10 seconds.
- Check DTC.
Is DTC detected? YES >> Proceed to EC-171, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK LIN COMMUNICATION CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector and generator harness connector.
- Check the continuity between ECM harness connector and generator harness connector.
- 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
- Replace generator. Refer to CHG-20, "Removal and Installation".
- Erase DTC.
- Perform DTC confirmation procedure again. Refer to EC-171, "DTC Description".
Is DTC detected again? YES >> Replace ECM. Refer to EC-499, "Removal and Installation".
NO >> INSPECTION END
U1001 CAN comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellen ...
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 circu ...
Other materials:
Diagnosis system (BCM) (with intelligent key system)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
Direct Diagnostic Mode
Description
Ecu Identification
The BCM part number is displayed.
Self Diagnostic ...
C1734 BCM
DTC Logic
NOTE:
The Signal Tech II Tool [- (J-50190)] can be used to perform the following
functions. Refer to the Signal Tech II
User Guide for additional information.
Activate and display TPMS sensor IDs
Display tire pressure reported by the TPMS sensor
Read TPMS DTC ...
Removal and installation
AV CONTROL UNIT
Exploded View
AV control unit bracket (LH)
AV control unit
AV control unit bracket (RH)
Removal and Installation
REMOVAL
CAUTION:
Before disconnecting the AV control unit and battery terminals,
turn the ignition switch OFF and wait
at least 30 secon ...
