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.
-
Other materials:
P0401 Egr Function
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis
content)
DTC detection
condition
...
Front Suspension. Removal and Installation
Front Coil Spring and Strut
Exploded View
Exploded View
1.
Steering knuckle
2.
Strut
3.
...
Pre-Inspection for Diagnosis
Work Procedure
Work Procedure
CHECK CAMERA LENS AND WINDSHIELD
Are camera lens and windshield contaminated with
foreign materials?
YES (When the camera lens is
contaminated with foreign materials.) >>
Replace front camera unit (Refer to R ...