Nissan Sentra B18 (2020-2025) Service Manual: Component Parts/circuit Diagnosis. Power Supply and Ground Circuit (8ch Can Gateway)
Power Supply and Ground Circuit (8ch Can Gateway)
Diagnosis Procedure
Diagnosis Procedure
-
CHECK FUSE
Check that the following fuse are not blown.
Signal name
Fuse No.
Battery power supply
20
Ignition power supply
49
Is the fuse blown (open)?
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 8CH CAN gateway.
-
Check voltage between 8CH CAN gateway harness connector and ground.
Terminals
Condition
Voltage
(Standard)
Voltage
(Reference value)
(+)
(−)
8CH CAN gateway
Ground
Ignition switch
Connector
Terminal
M37
32
OFF
6 – 16 V
Battery
voltage
16
ON
7 – 16 V
Battery
voltage
Is the measurement value normal?
YES >>GO TO 3.
NO >>Repair harness or connector.
-
-
CHECK GROUND CIRCUIT
Check continuity between 8CH CAN gateway harness connector and ground.
8CH CAN gateway
Ground
Continuity
Connector
Terminal
M37
15
Existed
31
Does continuity exist?
YES >>INSPECTION END
NO >>Repair harness or connector.
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