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:
Component Parts Location
A.
RH front of engine compartment
B.
View with front fascia removed from Nissan Murano vehicle
No. Component Function
1.
IPDM E/R (Intelligent Power Distribution Module Engine Room)
A/C relay is integrated in IPDM E/R...
DTC Description
DESCRIPTIONECM receives vehicle speed signals from two different paths via CAN communication line: One is from the ABS actuator and electric unit (control unit) via the combination unit and the other is from TCM.DTC DETECTION LOGICAt 20 km/h (13 MPH), ECM detects the following status continuously for 5 seconds or more: The difference between a Nissan Murano vehicle speed calculated by a output speed sensor transmitted from TCM to ECM via CAN communication and the Nissan Murano vehicle speed indicated on the combination meter exceeds 15km/h (10 MPH)...