Diagnosis Procedure
WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to the appropriate Wiring Diagram .
- CHECK FUSE
Check that the following fuses are not blown.
Terminal No.
Signal name
Fuse No.
1
Battery power supply
6 (10A)
2
ACC power supply
25 (5A)
10
Ignition signal
29 (5A)
Are the fuses blown?
YES
Replace the blown fuse after repairing the affected circuit.
NO
GO TO 2 .
- CHECK POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect TCU connector M197.
- Check voltage between TCU connector M197 and ground.
TCU
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M197
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
- Turn ignition switch OFF.
- Check continuity between TCU connector M197 and ground.
TCU
Ground
Continuity
Connector
Terminal
M197
28
-
Yes
29
Is the inspection result normal?
YES
Inspection End.
NO
Repair or replace harness or connectors.