Nissan Murano: Dtc/circuit Diagnosis / U1a10 Airbag Signal
DTC Description
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen terms
(Trouble diagnosis content) | DTC detection condition |
| U1A10 |
AIRBAG SIGNAL
(Airbag signal) |
Diagnosis condition |
When ignition switch is ON. |
| Signal (terminal) |
Car crash information signal |
| Threshold |
Abnormality |
| Diagnosis delay time |
1 second or more |
POSSIBLE CAUSE
CAN communication system
FAIL-SAFE
DTC Confirmation Procedure
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “TELEMATICS”.
-
Check DTC.
Is DTC U1A10 detected?
YES>>
Proceed to DTC Diagnosis Procedure.
NO>>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>
Confirmation after repair: Inspection End.
Diagnosis Procedure
PERFORM SELF DIAGNOSTIC RESULT OF AIR BAG
CONSULT
-
Ignition switch ON.
-
Erase DTC.
-
Select “Self Diagnostic Result” mode of “AIR BAG”.
-
Check DTC.
Are any DTCs detected?
YES>>
Refer to DTC Index.
NO>>
GO TO 2.
PERFORM SELF DIAGNOSTIC RESULT OF TELEMATICS
CONSULT
-
Ignition switch ON.
-
Erase DTC.
-
Select “Self Diagnostic Result” mode of “TELEMATICS”.
-
Check DTC.
Is DTC U1A10 detected?
YES>>
Replace TCU. Refer to Removal and Installation.
NO>>
Refer to Intermittent Incident.
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
U1A0E
SOS SWITCH ON STUCK
(SOS switch ON stuck)
Diagnosis condition
When ignition switch is ON...
Diagnosis Procedure
CHECK FUSE
Check that the following fuses are not blown:
Terminal No. Signal name Fuse No. Capacity
1
Battery power supply
25
10 A
2
ACC power supply
7
10 A
10
Ignition signal
29
10 A
Are the fuses blown?
YES>>
Replace the blown fuse after repairing the affected circuit...
Other information:
System Description
SYSTEM DIAGRAMADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEMInput Signal Item Transmit unit Signal name Description
ABS actuator and electric unit (control unit)
CAN communication
Nissan Murano Vehicle speed signal (ABS)
Receives wheel speeds of four wheels
BCM
CAN communication
Turn indicator signal
Receives an operational state of the turn signal lamp and the hazard lamp
Combination meter
CAN communication
System selection signal
Receives a selection state of each item in “Driver Assistance” selected with the Nissan Murano vehicle information display
Lane camera unit
ITS communication
Detected lane condition signal
Receives detection results of lane marker
Output Signal Item Reception unit Signal name Description
Combination meter
CAN communication
Lane departure warning lamp signal
Transmits a lane departure warning lamp signal to turn ON the lane departure warning lamp
Lane camera unit
ITS communication
Nissan Murano Vehicle speed signal
Transmits a vehicle speed calculated by the ADAS control unit
Turn indicator signal
Transmits a turn indicator signal received from BCM
Warning system buzzer
Warning buzzer signal
Activates warning system buzzer...
Work Procedure
Always perform the radar alignment after removing and installing or replacing the distance sensor.Application Notice Type Description
TYPE 1
When using KV99112700 for radar alignment. Refer to Description.
TYPE 2
When using 1-20-2851-1 for radar alignment...