Nissan Rogue Service Manual: U1000 CAN COMM CIRCUIT

Nissan Rogue Service Manual / Suspension / Road Wheels & Tires / DTC/circuit diagnosis / U1000 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 communicates data but selectively reads required data only.

DTC Logic

DTC DETECTION LOGIC

DTC	Display item	Malfunction detected condition	Possible cause
U1000	CAN COMM CIRCUIT	Low tire pressure warning control unit is not communicating CAN communication signal for 2 seconds or more.	CAN communication malfunction Malfunction of low tire pressure warning control unit

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION

With CONSULT

Drive for several minutes at a speed of 40 km/h (25 MPH) or more.
Stop the vehicle.
Perform “self-diagnosis” for “AIR PRESSURE MONITOR”.

Is DTC “U1000” detected? YES >> Proceed to WT-41, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

Proceed to LAN-30, "CAN COMMUNICATION SYSTEM : CAN System Specification Chart".

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