Nissan Murano: Dtc/circuit Diagnosis / U1300 Av Communication Circuit
DTC Description
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen terms
(Trouble diagnosis content) | DTC detection condition |
| U1300–01 |
AV communication circuit
(AV communication circuit) |
Diagnosis condition |
When ignition switch is ON. |
| Signal (terminal) |
— |
| Threshold |
— |
| Diagnosis delay time |
— |
POSSIBLE CAUSE
-
AV communication circuit
-
Audio unit
-
Combination meter
FAIL-SAFE
AV communication is inoperative
Confirmation Procedure
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON.
-
Ignition switch OFF and wait at least 30 seconds.
-
Ignition switch ON and wait at least 30 seconds or more.
-
Select “Self Diagnostic Result” mode of “MULTI AV”.
-
Check DTC.
Is DTC U1300 detected?
YES>>
Proceed to DTC Diagnosis Procedure.
NO>>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>
Confirmation after repair: Inspection End.
DTC Diagnosis Procedure
CHECK SELF DIAGNOSTIC RESULT
Check if any DTC other than “U1300” is detected in “Self diagnostic result” of “MULTI AV”.
Is any DTC detected?
YES>>
Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC Index.
NO>>
Replace audio unit. Refer to Removal and Installation.
DTC Description
DESCRIPTIONCAN (Controller Area Network) is a serial communication line for real-time application. It is an on-Nissan Murano vehicle multiplex communication line with high data communication speed and excellent error detection ability...
Diagnosis Procedure
CHECK FUSE
Check that the following fuses are not blown:
Terminal No. Signal name Fuse No. Capacity
7
ACC power supply
7
10 A
17
Ignition power supply
29
10 A
19
Battery power supply
15
20 A
Are the fuses blown?
YES>>
Replace the blown fuse after repairing the affected circuit...
Other information:
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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
Receives the wheel speed of the four wheels
Combination meter
CAN communication
System selection signal
Receives a selection state of each item in “Driver Assistance” selected with the combination meter
Steering angle sensor
CAN communication
Steering angle sensor signal
Receives the amount of rotation, rotational angle, and rotational direction of the steering wheel
Output Signal Item Reception unit Signal name Description
Combination meter
CAN communication
Meter display signal
I-DA status signal
Transmits a signal and displays the status on the Nissan Murano vehicle information display
Sonar control unit
ITS communication
Buzzer output signal
Transmits a buzzer drive signal to activates the warning system buzzer
FUNCTION DESCRIPTION
The Intelligent Drive Alertness (I-DA) is controlled by the ADAS control unit control unit...