Nissan Murano: Heater & Air Conditioning Control System :: Dtc/circuit Diagnosis / U1000 Can Comm Circuit

Nissan Murano (Z52) 2015-2024 Service Manual / Ventilation, Heater & Air Conditioner / Heater & Air Conditioning Control System :: Dtc/circuit Diagnosis / U1000 Can Comm Circuit

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Murano vehicle multiplex communication system with high data communication speed and excellent error detection ability. Many electronic control units are equipped in Nissan Murano vehicles, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with two communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data, but selectively reads required data only. Refer to CAN Communication Signal Chart.

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 is ON.
		Signal (terminal)	-
		Threshold	-
		Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

—

DTC Confirmation Procedure

PERFORM SELF DIAGNOSTIC RESULT

CONSULT

Ignition switch ON and wait for 2 seconds or more.
Select “Self Diagnostic Result” mode of “HVAC”.
Check DTC.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO>>

Refer to Intermittent Incident.

DTC Diagnosis Procedure

CHECK CAN COMMUNICATION SYSTEM

Check CAN communication system. Refer to Trouble Diagnosis Flow Chart.

Inspection End.

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