Nissan Murano: 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 independently). In CAN communication, control units are connected with 2 communication lines (CAN-High, CAN-Low) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

Function of CAN communication signals received by audio unit are inoperative

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch ON.

2. Ignition switch OFF and wait at least 30 seconds.

3. Ignition switch ON and wait at least 30 seconds or more.

4. Select “Self Diagnostic Result” mode of “MULTI AV”.

5. Check DTC.

Is DTC U1000 detected?

Proceed to DTC Diagnosis Procedure.

To check malfunction symptom before repair: Refer to Intermittent Incident.

Confirmation after repair: Inspection End.

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to Confirmation Procedure.

Is DTC detected again?

Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.

Inspection End.