Nissan Sentra B18 (2020-2025) Service Manual: Power Supply and Ground Circuit
Diagnosis Procedure
Diagnosis Procedure
-
CHECK FUSE
Check that the following fuse is not blown:
Signal name
Fuse No.
Ignition power supply
2 (10 A)
Is the fuse blown?
YES >>Replace the blown fuse after repairing the affected circuit.
NO >>GO TO 2.
-
CHECK ADAS CONTROL UNIT 2 POWER SUPPLY CIRCUIT
Check voltage between ADAS control unit 2 harness connector and ground.
Terminal
Condition
Voltage
(Approx.)
(+)
(–)
ADAS control unit 2
Ground
Ignition switch
Connector
Terminal
M148
16
OFF
0 V
ON
Battery voltage
Is the inspection result normal?
YES >>GO TO 3.
NO >>Repair the ADAS control unit 2 power supply circuit.
-
CHECK ADAS CONTROL UNIT 2 GROUND CIRCUIT
-
Turn the ignition switch OFF.
-
Disconnect the ADAS control unit 2 harness connector.
-
Check for continuity between ADAS control unit 2 harness connector and ground.
ADAS control unit 2
Ground
Continuity
Connector
Terminal
M148
2
Yes
Is the inspection result normal?
YES >>Inspection End.
NO >>Repair the ADAS control unit 2 ground circuit.
-
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Diagnosis Procedure
Diagnosis Procedure
CHECK TRIP RESET SWITCH SIGNAL
Ignition switch ON.
Check voltage between the following terminals of
the trip reset switch harness con ...