Nissan Murano: Dtc/circuit Diagnosis / U0102 Lost Communication (transfer)

Nissan Murano (Z52) 2015-2024 Service Manual / Transmission & Driveline / Transaxle & Transmission :: Cvt: Re0f10j / Dtc/circuit Diagnosis / U0102 Lost Communication (transfer)

DTC Description

DTC DETECTION LOGIC

When the ignition switch is ON, TCM is unable to receive the CAN communications signal from AWD control unit continuously for 2 seconds or more.

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
U0102	LOST COMM (TRANSFER) (Lost Communication With Transfer Case Control Module)	Diagnosis condition	When the ignition switch is ON
		Signal	CAN communication signal
		Threshold	TCM is unable to receive the CAN communications signal from AWD control unit
		Diagnosis delay time	Continuously for 2 seconds or more

POSSIBLE CAUSE

AWD control unit
Harness or connector (CAN communication line is open or shorted)

FAIL-SAFE

Not changed from normal driving

DTC Confirmation Procedure

PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

Start the engine and wait for at least 5 seconds.
Check the DTC.

Is “U0102” detected?

YES>>

Go to Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

For the diagnosis procedure, refer to DESCRIPTION.

U0100 Lost Communication (ecm A)

DTC Description DTC DETECTION LOGICWhen the ignition switch is ON, TCM is unable to receive the CAN communications signal from ECM continuously for 2 seconds or more...

U0122 Lost Communication (vdc)

DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition U0122 LOST COMM (BRAKE C/U) (Lost Communication With Nissan Murano Vehicle Dynamics Control Module) Diagnosis condition When the ignition switch is ON Signal CAN communication signal Threshold TCM is unable to receive the CAN communications signal from ABS actuator and electric unit (control unit) Diagnosis delay time Continuously for 2 seconds or more POSSIBLE CAUSE ABS actuator and electric unit (control unit) Harness or connector (CAN communication line is open or shorted) FAIL-SAFENot changed from normal drivingDTC CONFIRMATION PROCEDURECHECK DTC PRIORITY WhenDTC U0122 is displayed together with DTC U0300, diagnose first the DTC U0300...

Other information:

Nissan Murano (Z52) 2015-2024 Service Manual: All Switches

Diagnosis Procedure Automatic back door open/close function does not operate using all switches.NOTE: Automatic back door open/close operation condition is extremely complicated. During operating confirmations, reconfirm the list above twice in order to ensure proper operation...

Nissan Murano (Z52) 2015-2024 Service Manual: B2401 Ign Open

DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC detecting condition B2401–86 IGN OPEN (Ignition open) Diagnosis condition All times Signal (terminal) Ignition switch ON signal (CAN communication) Threshold When all of the following conditions are satisfied CAN communication is normal Automatic back door control module receives wake up signal via CAN communication with BCM Automatic back door control module cannot detect ignition switch ON signal via CAN communication with IPDM E/R Diagnosis delay time – B2401–87 IGN OPEN (Ignition open) Diagnosis condition All times Signal (terminal) CAN communication Threshold When automatic back door control module can not communicate CAN communication signal Diagnosis delay time 2 seconds POSSIBLE CAUSE CAN communication system BCM IPDM E/R Automatic back door control module FAIL-SAFEInhibit automatic back door system auto open/close function DTC Confirmation Procedure PERFORM DTC CONFIRMATION PROCEDURE CONSULT Ignition switch ON...