Nissan Sentra B18 (2020-2025) Service Manual: Power Supply and Ground Circuit
Diagnosis Procedure
Diagnosis Procedure
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CHECK FUSE
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Check that the following fuse is not blown:
Terminal No.
Signal name
Fuse No.
Capacity
40
Ignition signal
49
10 A
Is the fuse blown?
YES>>Replace the blown fuse after repairing the affected circuit.
NO>>GO TO 2.
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CHECK POWER SUPPLY CIRCUIT
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Ignition switch OFF.
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Disconnect around view monitor control unit connector.
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Ignition switch ON.
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Check voltage between around view monitor control unit connector and ground.
Around view monitor control unit
—
Condition
Voltage
(Approx.)
Connector
Terminal
B72
40
Ground
Ignition switch: ON
Battery voltage
-
Is the inspection result normal?
YES >>GO TO 3.
NO >>Repair or replace harness or connectors.
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CHECK GROUND CIRCUIT
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Ignition switch OFF.
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Check continuity between around view monitor control unit connector and ground.
Around view monitor control unit
—
Continuity
Connector
Terminal
B72
39
Ground
Yes
-
Is the inspection result normal?
YES >>Inspection End.
NO >>Repair or replace harness or connectors.
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Other materials:
Dtc/circuit Diagnosis. Position Switch
Position Switch
Back-Up Lamp Switch
Component Inspection
Component Inspection
CHECK BACK-UP LAMP SWITCH
Disconnect position switch harness connector.
Refer to Removal and Installation.
...
Basic Inspection
Diagnosis and Repair Workflow
Work Flow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about
the symptom (the condition and the environment when the
incident/ma ...
Bcm
B2c21-23 Front Seat Belt Buckle Switch Lh
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen items
(Trouble diagnosis
content)
...