Nissan Murano: Dtc/circuit Diagnosis / Power Supply and Ground Circuit
Diagnosis Procedure
CHECK FUSE
Check that the following fuses are not blown:
| Terminal No. | Signal name | Fuse No. | Capacity |
| 1 |
Battery power supply |
25 |
10 A |
| 2 |
ACC power supply |
7 |
10 A |
| 10 |
Ignition signal |
29 |
10 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 TCU connector.
-
Check voltage between TCU connector and ground.
| TCU | Ground | Condition |
Voltage
(Approx.) |
| Connector | Terminal |
| M126 |
1 |
— |
Ignition switch: OFF |
Battery voltage |
| 2 |
Ignition switch: ACC |
| 10 |
Ignition switch: ON |
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 TCU connector and ground.
| TCU | Ground | Continuity |
| Connector | Terminal |
| M126 |
28 |
— |
Yes |
| 29 |
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
U1A10
AIRBAG SIGNAL
(Airbag signal)
Diagnosis condition
When ignition switch is ON...
Other information:
Description
SPECIAL REPAIR REQUIREMENT×: Applicable Part name Service performed Required service Reference
Replacement Removal*1
ECM
×
Additional service when replacing ECM
Description
×
Accelerator pedal released position learning
Description
Throttle valve closed position learning
Description
Idle air volume learning
Description
VIN registration
Description
Accelerator Pedal
×
×
Accelerator pedal released position learning
Work Procedure
Electric throttle
×
×
Throttle valve closed position learning
Work Procedure
×
Idle air volume learning
Work Procedure
Engine assembly
×
Throttle valve closed position learning*2
Work Procedure
Idle air volume learning*2
Work Procedure
×
Accelerator pedal released position learning
Work Procedure
Throttle valve closed position learning*2
Work Procedure
*1: Harness connector disconnection included...
Exploded View
1.
Center console side finisher (RH)
2.
Center console side finisher (LH)
3.
Center console lower side finisher (LH)
4.
Center console reinforcement bracket
5.
Mood lamp [front console LH (if equipped)]
6.
Mood lamp lens [front console LH (if equipped)]
7...
Categories

The autolight system allows the headlights
to turn on and off automatically. The autolight
system can:
Turn on the headlights, front parking,
tail, license plate and instrument panel
lights automatically when it is dark.
Turn off all the lights (except daylight
running lights) when it is light.
Keep all the lights on for a period of time
after you place the ignition switch in the
OFF position and all doors are closed.
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