Nissan Murano: Dtc/circuit Diagnosis / Power Supply and Ground Circuit. Av Control Unit
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.
NO>>
GO TO 2.
CHECK POWER SUPPLY CIRCUIT
-
Ignition switch OFF.
-
Disconnect AV control unit connectors.
-
Check voltage between AV control unit connectors and ground.
| AV control unit | Ground | Condition |
Voltage
(Approx.) |
| Connector | Terminal |
| M161 |
19 |
— |
Ignition switch: OFF |
Battery voltage |
| 7 |
Ignition switch: ON |
| 17 |
Is the inspection result normal?
YES>>
GO TO 3.
NO>>
Repair or replace harness or connectors.
CHECK GROUND CIRCUIT
-
Ignition switch OFF.
-
Check continuity between AV control unit connector and ground.
| AV control unit | Ground | Continuity |
| Connector | Terminal |
| M161 |
20 |
— |
Yes |
Is the inspection result normal?
YES>>
Inspection End.
NO>>
Repair or replace harness or connectors.
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...
Diagnosis Procedure
CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
Ignition switch OFF.
Disconnect combination switch connector.
Check resistance between the terminals of combination switch connector...
Other information:
Bulb Specifications
Item Type Wattage (W)
Front combination lamp
High beam
LED
—
Low beam
—
Turn signal lamp
LED
—
Side marker lamp
LED
—
Daytime running lamp
LED
—
Front fog lamp
LED
—
Door mirror turn signal lamp
LED
—
Rear combination lamp (body side)
Stop lamp
LED
—
Side marker lamp
LED
—
Turn signal lamp
LED
—
Rear combination lamp (back door side)
Back-up lamp
LED
—
Tail lamp
LED
—
License plate lamp
W5W
5
High-mounted stop lamp
LED
—
*: Always check with the Parts Department for the latest parts info...
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 front wheels...