Diagnosis Procedure
WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FUSE
Check that the following fuse are not blown.
Signal name
Fuse No.
Battery power supply
25
Ignition power supply
31
Is the fuse fusing?
YES
Replace the blown fuse after repairing the affected circuit if a fuse is blown.
NO
GO TO 2.
- CHECK POWER SUPPLY CIRCUIT
- Turn the ignition switch OFF.
- Disconnect the connector of CAN gateway.
- Check voltage between CAN gateway harness connector and ground.
Terminals
Condition
Standard voltage
Reference voltage
(Approx.)
(+)
(-)
CAN gateway
Ground
Ignition switch
Connector
Terminal
M5
3
OFF
6 - 16 V
Battery
voltage
9
ON
4.5 - 16 V
Battery
voltage
Is the measurement value normal?
YES
GO TO 3.
NO
Repair harness or connector.
- CHECK GROUND CIRCUIT
Check continuity between CAN gateway harness connector and ground.
CAN gateway
Ground
Continuity
Connector
Terminal
M5
5
Existed
11
Does continuity exist?
YES
INSPECTION END
NO
Repair harness or connector.