Diagnosis Procedure
WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FUSE
Check that the following fuse is not blown.
Signal name
Fuse No.
Ignition power supply
30 (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
B104
12
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
B104
5
Yes
Is the inspection result normal?
YES
Inspection End.
NO
Repair the ADAS control unit ground circuit.