Nissan Sentra B18 (2020-2025) Service Manual: Power Supply and Ground Circuit. Diagnosis Procedure
Diagnosis Procedure
Diagnosis Procedure
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CHECK FUSE
-
Check that the following fuse is not blown:
Terminal No.
Signal name
Fuse No.
Capacity
12
Ignition power supply
49
10 A
Is the fuse blown?
YES>>Replace the blown fuse after repairing the affected circuit.
NO>>GO TO 2.
-
-
CHECK POWER SUPPLY CIRCUIT
-
-
Ignition switch OFF.
-
Disconnect sonar control unit connector.
-
Check voltage between sonar control unit connector and ground.
(+)
(–)
Condition
Voltage
(Approx.)
Sonar control unit
Connector
Terminal
B87
12
Ground
Ignition switch: ON
Battery voltage
-
Is the inspection result normal?
YES>>GO TO 3.
NO>>Repair or replace harness or connectors.
-
-
CHECK GROUND CIRCUIT
-
-
Ignition switch OFF.
-
Check continuity between sonar control unit connector and ground.
Sonar control unit
—
Continuity
Connector
Terminal
B87
15
Ground
Yes
-
Is the inspection result normal?
YES>>Inspection End.
NO>>Repair or replace harness or connectors.
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Other materials:
Laser/radar (distance Sensor)
C2580-44 Control Unit
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis
content)
DTC dete ...
Precautions for Refrigerant System Service
Precautions
For Refrigerant System Service
GENERAL REFRIGERANT PRECAUTION
Warning:
Do not breathe A/C refrigerant and oil vapor or
mist. Exposure may irritate eyes, nose and throat. Remove HFO-1234yf
(R-1234yf) from the A/C system, using certified s ...
ECO mode switch
The ECO mode in the Nissan Sentra is designed to improve fuel efficiency by optimizing
throttle response and transmission shift points during normal driving conditions.
To activate ECO mode, press the ECO mode switch. When enabled, the ECO mode indicator
light on the meter or vehicle inform ...