Nissan Murano: Dtc/circuit Diagnosis / Power Supply and Ground Circuit
Diagnosis Procedure
CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown:
| Terminal | Signal name | Fuse or fusible link No. | Capacity |
| 25 |
Battery power supply (brake switch) |
10 |
10A |
| 26 |
Battery power supply (shorting input) |
16 |
5A |
| 81 |
Battery power supply (rear wiper) |
5 |
15A |
| 131 |
Battery power supply |
1 |
10A |
| 138 |
Battery power supply (rear door) |
4 |
15A |
| 139 |
Battery power supply |
L |
40A |
| 142 |
Battery power supply (front door) |
3 |
15A |
Is the fuse or fusible link blown?
YES>>
Replace the blown fuse or fusible link after repairing the affected circuit.
NO>>
GO TO 2.
CHECK POWER SUPPLY CIRCUIT
-
Disconnect BCM connectors.
-
Check voltage between BCM harness connectors and ground.
| (+) |
(–) |
Voltage
(Approx.) |
| BCM |
| Connector |
Terminal |
| M18 |
25 |
Ground |
Battery voltage |
| 26 |
| M20 |
81 |
| M81 |
131 |
| 138 |
| 139 |
| 142 |
Is the inspection result normal?
YES>>
GO TO 3.
NO>>
Repair or replace harness or connectors.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
| BCM |
Ground |
Continuity |
| Connector |
Terminal |
| M81 |
134 |
Yes |
| 143 |
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
B259A
ROOM LAMP FUSE BLOWN
(Room lamp fuse blown)
Diagnosis condition
When ignition switch ON...
Diagnosis Procedure
CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN
Ignition switch OFF.
Disconnect BCM connector and combination switch connector.
Check continuity between BCM harness connector and combination switch harness connector...
Other information:
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen items
(Trouble diagnosis content) DTC detection condition
C1A13-23
STOP LAMP RLY FIX
(Stop lamp relay fix)
Diagnosis condition
When engine is running
Signal (terminal)
—
Threshold
Stop lamp inactive state continues despite the outputting of an ADAS control unit stop lamp request signal
Diagnosis delay time
1 second or more
POSSIBLE CAUSE
Stop lamp switch circuit
Stop lamp switch
Incorrect stop lamp switch installation
ICC brake hold relay
ICC brake hold relay circuit
ADAS control unit
ECM
FAIL-SAFEThe following systems are canceled:
Vehicle-to-vehicle distance control mode
Conventional (fixed speed) cruise control mode
Automatic Emergency Braking (AEB) with pedestrian detection
Automatic Emergency Braking (AEB)
Intelligent Forward Collision Warning (I-FCW)
Rear Automatic Braking (RAB)
Confirmation Procedure
CHECK DTC PRIORITY
If DTC “C1A13–23” is displayed with DTC “U1000–01”, first diagnose the DTC “U1000–01”...
DTC Description
DTC DETECTION LOGICTCM communication blockage lasts for 2 seconds or more when turning ON the ignition switch. (Communication not established.) DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
U0073
COMM BUS A OFF
(Control Module Communication Bus A Off)
Diagnosis condition
When turning ON the ignition switch
Signal
CAN communication
Threshold
TCM communication blockage (Communication not established)
Diagnosis delay time
Last for 2 seconds or more
POSSIBLE CAUSEHarness or connector (CAN communication line is error)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...
Categories

The gauge indicates the approximate fuel
level in the tank.
The gauge may move slightly during braking,
turning, acceleration, or going up or
down hills.
The gauge needle returns to 0 (Empty) after
the ignition switch is placed in the OFF
position.
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