Nissan Murano: Dtc/circuit Diagnosis / U1000 Can Comm Circuit

Nissan Murano (Z52) 2015-2024 Service Manual / Cruise Control & Driver Assistance / Cruise Control System :: Icc / Dtc/circuit Diagnosis / U1000 Can Comm Circuit

DTC Description

DESCRIPTION

ITS COMMUNICATION

  • ITS communication is a multiplex communication system. This enables the system to transmit and receive large quantities of data at high speeds by connecting control units with two communication lines.

  • ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

DTC DETECTION LOGIC

DTC No. CONSULT screen terms DTC detection condition
U1000

CAN COMM CIRCUIT

(CAN communication circuit)
Diagnosis condition When Ignition switch is ON.
Signal (terminal)
Threshold If distance sensor (ICC sensor) is not transmitting or receiving ITS communication signal
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

  • ITS communication system

FAIL-SAFE

The following systems are canceled:

  • Intelligent Cruise Control

  • Automatic Emergency Braking (AEB)

  • Intelligent Forward Collision Warning (I-FCW)

DTC Confirmation Procedure

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Start the engine.

  2. Turn the MAIN switch of ICC system ON.

  3. Perform “All DTC Reading” with CONSULT.

  4. Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” mode of “LASER/RADAR”.

Is “U1000” detected as the current malfunction?

YES>>

Refer to Diagnosis Procedure.

NO>>

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

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM THE SELF DIAGNOSTIC RESULT

CONSULT

  1. Turn the ignition switch ON.

  2. Turn the MAIN switch of ICC system ON, and then wait for 2 seconds or more.

  3. Perform “All DTC Reading” with CONSULT.

  4. Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” mode of “LASER/RADAR”.

Is “U1000” detected as the current malfunction?

YES>>

Refer to Trouble Diagnosis Flow Chart.

NO>>

Inspection End.

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