Nissan Rogue Service Manual: U1000 CAN COMM circuit

Nissan Rogue Service Manual / Steering / Steering Control System / 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 communicate data but selectively reads required data only

DTC Logic

DTC DETECTION LOGIC

DTC	Display item	Malfunction detected condition	Possible cause
U1000	CAN COMM CIRCUIT	EPS control unit is not transmitting/receiving CAN communication signal for 2 seconds or more.	CAN communication error EPS control unit

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

Turn the ignition switch OFF to ON.
Perform “EPS” self-diagnosis.

Is DTC “U1000” detected? YES >> Proceed to diagnosis procedure. Refer to STC-27, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

Proceed to LAN-17, "Trouble Diagnosis Flow Chart".

C1609 vehicle speed signal

DTC Logic DTC DETECTION LOGIC DTC Display item Malfunction detected condition Possible cause C1609 CAN VHCL SPEED Malfunction is detected in v ...

EPS warning lamp

Component Function Check 1.CHECK THE ILLUMINATION OF THE EPS WARNING LAMP Check that the EPS warning lamp turns ON when ignition switch turns ON. Then, EPS warning lamp turns OFF after the engine ...

Other materials:

Symptom diagnosis
COMBINATION SWITCH SYSTEM SYMPTOMS Symptom Table Perform the data monitor of CONSULT to check for any malfunctioning item. Check the malfunction combinations. Identify the malfunctioning part from the agreed combination and repair or replace the part. NORMAL OPERA ...

U1000 CAN COMM CIRCUIT
Description CAN communication allows a high rate of information transmission through the two communication lines (CAN-H line and CAN-L line) connecting various control units in the system. Each control unit transmits/ receives data but selectively reads required data only. DTC Logic DTC DET ...

CVT control system
Wiring Diagram ...