Body Control System (DTC/Circuit Diagnosis)
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 AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
Terminal No.
Signal name
Fuse and fusible link No.
139
Fusible link battery power
O (40 A)
131
BCM battery fuse
1 (10 A)
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 connector M81.
- Check voltage between BCM connector and ground.
BCM
Ground
Voltage
(Approx.)
Connector
Terminal
M81
131
--
Battery voltage
139
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace harness or connectors.
- CHECK GROUND CIRCUIT
Check continuity between BCM 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.