Nissan Murano: Steering Control System :: Dtc/circuit Diagnosis / U1000 Can Comm Circuit

Nissan Murano (Z52) 2015-2024 Service Manual / Steering / Steering Control System :: Dtc/circuit Diagnosis / U1000 Can Comm Circuit

DTC Description

DESCRIPTION

CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-Nissan Murano vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a Nissan Murano 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-High line, CAN-Low line), allowing a high rate of information transmission with less wiring. Each control unit communicates data but selectively reads required data only.

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
U1000	CAN COMM CIRCUIT (CAN communication circuit)	Diagnosis condition	When ignition switch ON.
		Signal (terminal)	CAN communication signal
		Threshold	CAN signal failure
		Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

CAN communication error

FAIL-SAFE

Normal control

DTC Confirmation Procedure

PRECONDITIONING

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

GO TO 2.

DTC REPRODUCTION PROCEDURE

CONSULT

Ignition switch OFF to ON.
Select "Self Diagnostic Result" mode of "EPS/DAST 3".

Is DTC “U1000” detected?

YES>>

Go to DTC Diagnosis Procedure.

NO>>

Inspection End.

DTC Diagnosis Procedure

Proceed to Trouble Diagnosis Flow Chart.

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