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:
Seating capacity: The maximum
number of occupants that can
be seated in the vehicle.
Tire size - refer to “Tire
labeling” in
this section.
Cold tire pressure: Inflate the
tires to this pressure when the
tires are cold. Tires are considered
COLD after the vehicle has
been parked for 3 or more hours,
or driven less than 1 mile (1...
Values on the Diagnosis Tool
NOTE:
The following table includes information (items) inapplicable to this Nissan Murano vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.
Monitor item Condition Value/Status
MAIN SW
Ignition switch ON
When MAIN switch is pressed
On
When MAIN switch is not pressed
Off
SET/COAST SW
Ignition switch ON
When SET/COAST switch is pressed
On
When SET/COAST switch is not pressed
Off
CANCEL SW
Ignition switch ON
When CANCEL switch is pressed
On
When CANCEL switch is not pressed
Off
RESUME/ACC SW
Ignition switch ON
When RESUME/ACCELERATE switch is pressed
On
When RESUME/ACCELERATE switch is not pressed
Off
DISTANCE SW
Ignition switch ON
When DISTANCE switch is pressed
On
When DISTANCE switch is not pressed
Off
CRUISE OPE
Drive the Nissan Murano vehicle and activate the vehicle-to-vehicle distance control mode
When ICC system is controlling
On
When ICC system is not controlling
Off
BRAKE SW
Ignition switch ON
When brake pedal is depressed
Off
When brake pedal is not depressed
On
STOP LAMP SW
Ignition switch ON
When brake pedal is depressed
On
When brake pedal is not depressed
Off
IDLE SW
Engine running
Idling
On
Except idling (depress accelerator pedal)
Off
VHCL SPEED SE
While driving
Displays the Nissan Murano vehicle speed calculated by ADAS control unit
ENGINE RPM
Engine running
Equivalent to tachometer reading
THRTL SENSOR
NOTE:
The item is displayed, but it is not used...