Nissan Murano: Diagnosis System (bcm) / Buzzer
CONSULT Function (BCM - BUZZER)
ECU IDENTIFICATION
The BCM part number is displayed.
SELF DIAGNOSTIC RESULT
Refer to DTC Index.
DATA MONITOR
| Monitor Item [Unit] | Description |
| PUSH SW [On/Off] |
Indicates condition of push-button ignition switch. |
| UNLK SEN -DR [On/Off] |
Indicates condition of door unlock sensor. |
| VEH SPEED 1 [km/h] |
Indicates Nissan Murano vehicle speed signal received from ABS on CAN communication line. |
| TAIL LAMP SW [On/Off] |
Indicates condition of combination switch. |
| FR FOG SW [On/Off] |
Indicates condition of front fog lamp switch. |
| DOOR SW-DR [On/Off] |
Indicates condition of front door switch LH. |
| CDL LOCK SW [On/Off] |
Indicates condition of lock signal from door lock and unlock switch. |
ACTIVE TEST
| Test Item | Description |
| SEAT BELT WARN TEST |
This test is able to check seat belt warning chime operation [On/Off]. |
| LIGHT WARN ALM |
This test is able to check light warning chime operation [On/Off]. |
| REVERSE WARNING |
This test is able to check reverse warning chime operation [On/Off]. |
CONSULT Function (BCM - REAR DEFOGGER)
ECU IDENTIFICATIONThe BCM part number is displayed.SELF DIAGNOSTIC RESULTRefer to DTC Index.DATA MONITOR Monitor Item [Unit] Description
PUSH SW [On/Off]
Indicates condition of push-button ignition switch...
CONSULT Function (BCM - INT LAMP)
ECU IDENTIFICATIONThe BCM part number is displayed.SELF DIAGNOSTIC RESULTRefer to DTC Index.DATA MONITOR Monitor Item [Unit] Description
REQ SW -DR [On/Off]
Indicates condition of door request switch LH...
Other information:
WARNING
Failure to follow the warnings and instructions
for proper use of the BSW
system could result in serious injury or
death.
The BSWsystem is not a replacement
for proper driving procedures and is
not designed to prevent contact with
vehicles or objects...
DTC Description
DTC DETECTION LOGICTCM communication blockage lasts for 2 seconds or more when turning ON the ignition switch. (Communication not established.) DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
U0073
COMM BUS A OFF
(Control Module Communication Bus A Off)
Diagnosis condition
When turning ON the ignition switch
Signal
CAN communication
Threshold
TCM communication blockage (Communication not established)
Diagnosis delay time
Last for 2 seconds or more
POSSIBLE CAUSEHarness or connector (CAN communication line is error)FAIL-SAFE
Selector shock is large
Start is slow
Acceleration is slow
Lock-up is not performed
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...