Nissan Rogue Service Manual: U1001 CAN comm circuit

Nissan Rogue Service Manual / Engine / Engine Control System / DTC/Circuit diagnosis / 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 excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.

Each control unit transmits/receives data but selectively reads required data only.

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detecting condition
U1001	CAN COMM CIRCUIT (CAN COMM CIRCUIT)	When ECM is not transmitting or receiving CAN communication signal other than OBD (emission related diagnosis) for 2 seconds or more.

POSSIBLE CAUSE

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

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

Turn ignition switch ON and wait at least 3 seconds.
Check 1st trip DTC.

Is 1st trip DTC detected? YES >> Proceed to EC-170, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

Perform the trouble diagnosis for CAN communication system. Refer to LAN-17, "Trouble Diagnosis Flow Chart".

U0101 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 ...

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 ...

Other materials:

Interior room lamp power supply circuit
Description Provides the interior room lamp power supply. Also cuts the power supply when the interior room lamp battery saver is activating. Component Function Check 1.CHECK INTERIOR ROOM LAMP POWER SUPPLY FUNCTION CONSULT ACTIVE TEST Turn power switch ON. Turn each interio ...

Intelligent 4WD (if so equipped)
4X4–I SYSTEM OPERATION WARNING Do not drive beyond the performance capability of the tires. Accelerating quickly, sharp steering maneuvers or sudden braking may cause loss of control, even with Intelligent 4WD engaged. For 4WD equipped vehicles, do not a ...

Valve timing control
Exploded View Valve timing cover 2. O-rings Intake valve timing intermediate lock control solenoid valve Intake valve timing control solenoid valve Exhaust valve timing control solenoid valve Intake Valve Timing Intermediate Lock Control Solenoid Valve, Intake ...