Nissan Sentra B18 (2020-2025) Service Manual: Brake Warning Lamp
Component Function Check
Component Function Check
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CHECK BRAKE WARNING LAMP FUNCTION (1)
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Check that brake warning lamp in combination meter turns ON for 1 second after ignition switch is placed ON.
CAUTION:
Never start the engine.
Is the inspection result normal?
YES >>GO TO 2.
NO >>Refer to Diagnosis Procedure.
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CHECK BRAKE WARNING LAMP FUNCTION (2)
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Check that brake warning lamp turns ON/OFF when parking brake is operated.
Note:
Brake warning lamp turns ON when parking brake is operated (when parking brake switch is ON).
Is the inspection result normal?
YES>>GO TO 3.
NO>>Check the parking brake switch system. Refer to Diagnosis Procedure.
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CHECK BRAKE WARNING LAMP FUNCTION (3)
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Check that brake warning lamp in combination meter turns ON/OFF when brake fluid level switch is operated while brake fluid level in reservoir tank is with the specified level.
Note:
Brake warning lamp turns ON when brake fluid is less than the specified level (when brake fluid level switch is ON).
Is the inspection result normal?
YES >>Inspection End.
NO >>Check the brake fluid level switch system. Refer to Exploded View.
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Diagnosis Procedure
Diagnosis Procedure
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CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT
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Perform the trouble diagnosis for ABS actuator and electric unit (control unit) power supply and ground circuit. Refer to Diagnosis Procedure.
Is the inspection result normal?
YES>>GO TO 2.
NO>>Repair or replace malfunctioning parts.
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PERFORM SELF DIAGNOSTIC RESULT
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CONSULT-
Ignition switch OFF → ON.
CAUTION:
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Be sure to wait of 10 seconds after placing ignition switch OFF or ON.
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Start the engine.
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Repeat step 1 two or more times.
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Select “Self Diagnostic Result” mode of “ABS”.
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Is any DTC detected?
YES >>Check the DTC. Refer to DTC Index.
NO >>GO TO 3.
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CHECK BRAKE WARNING LAMP SIGNAL
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CONSULT-
Select “ABS”, “Data Monitor” mode and “EBD WARN LAMP” according to this order.
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Ignition switch OFF.
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Check that “Data Monitor” displays “On” for 1 second after ignition switch is placed ON and then changes to “Off”.
CAUTION:
Never start the engine.
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Is the inspection result normal?
YES >>Replace the combination meter. Refer to Removal & Installation (Type A) or Removal & Installation (Type B).
NO >>Replace the ABS actuator and electric unit (control unit). Refer to Removal & Installation.
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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 ...
LATCH (Lower Anchors and Tethers for CHildren) system
LATCH system lower anchor locations
Your Nissan Sentra is equipped with dedicated anchor points designed for use
with LATCH system–compatible child restraints. This system may also be referred
to as ISOFIX or ISOFIX-compatible. When using the LATCH system, a vehicle seat belt
is not req ...
Chime Does Not Sound
Diagnosis Procedure
Diagnosis Procedure
The warning chime may not sound in some cases when there is a
short distance between vehicles. Some examples are:
When the Nissan Sentra vehicles are traveling at the same speed and the
distance between vehicles is not changing.
...