Nissan Murano: Dtc/circuit Diagnosis / Power Supply and Ground Circuit
Diagnosis Procedure
Regarding Wiring Diagram information, refer to Wiring Diagram.
CHECK FUSES
Check that the following fuse is not blown:
| Signal name | Fuse No. |
| Ignition power supply |
29 (10A) |
Is the fuse blown?
YES>>
Replace the blown fuse after repairing the affected circuit.
NO>>
GO TO 2.
CHECK ADAS CONTROL UNIT POWER SUPPLY CIRCUIT
Check voltage between ADAS control unit harness connector and ground.
| Terminal |
Condition |
Voltage
(Approx.) |
| (+) |
(–) |
| ADAS control unit |
Ground |
Ignition switch |
| Connector |
Terminal |
| M182 |
16 |
OFF |
0 V |
| ON |
Battery voltage |
Is the inspection result normal?
YES>>
GO TO 3.
NO>>
Repair the ADAS control unit power supply circuit.
CHECK ADAS CONTROL UNIT GROUND CIRCUIT
-
Turn the ignition switch OFF.
-
Disconnect the ADAS control unit connector.
-
Check for continuity between ADAS control unit harness connector and ground.
| ADAS control unit |
Ground |
Continuity |
| Connector |
Terminal |
| M182 |
2 |
Yes |
Is the inspection result normal?
YES>>
Inspection End.
NO>>
Repair the ADAS control unit ground circuit.
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen items
(Trouble diagnosis content) DTC detection condition
U1507-87
LOST COMM(SIDE RDR R)
[Lost communication (Side radar right)]
Diagnosis condition
When engine is running
When Blind Spot Warning system is ON
Signal (terminal)
ITS communication signal
Threshold
ADAS control unit cannot receive ITS communication signal from side radar RH
Diagnosis delay time
2 seconds or more
POSSIBLE CAUSE
Side radar RH right/left switching signal circuit
ITS communication system
Side radar RH
FAIL-SAFEThe following systems are canceled:
Blind Spot Warning (BSW)
Rear Cross Traffic Alert (RCTA)
Confirmation Procedure
DTC CONFIRMATION PROCEDURECHECK DTC PRIORITY
If DTC “U1507-87” is displayed with DTC “U1000–01”, first diagnose the DTC “U1000–01”...
Removal and Installation
REMOVALNOTE:
Before replacing ADAS control unit, perform “Before Replace ECU” of “Read / Write Configuration” to save or print current Nissan Murano vehicle specification...
Other information:
DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0966
PC SOLENOID B
(Pressure Control Solenoid B Control Circuit Low)
Diagnosis condition
TCM power supply voltage: More than 11 V
Signal
—
Threshold
TCM judges that solenoid valve circuit is shorted to ground
Diagnosis delay time
Maintained for 1 second
POSSIBLE CAUSE
Harness or connector (Primary pressure solenoid valve circuit shorted to ground)
Primary pressure solenoid valve
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...
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collisions...