Nissan Sentra B18 (2020-2025) Service Manual: Brake Warning Lamp
Component Function Check
Component Function Check
-
CHECK BRAKE WARNING LAMP FUNCTION (1)
-
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.
-
-
CHECK BRAKE WARNING LAMP FUNCTION (2)
-
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.
-
-
CHECK BRAKE WARNING LAMP FUNCTION (3)
-
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.
-
Diagnosis Procedure
Diagnosis Procedure
-
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT
-
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.
-
-
PERFORM SELF DIAGNOSTIC RESULT
-
CONSULT-
Ignition switch OFF → ON.
CAUTION:
-
Be sure to wait of 10 seconds after placing ignition switch OFF or ON.
-
Start the engine.
-
-
Repeat step 1 two or more times.
-
Select “Self Diagnostic Result” mode of “ABS”.
-
Is any DTC detected?
YES >>Check the DTC. Refer to DTC Index.
NO >>GO TO 3.
-
-
CHECK BRAKE WARNING LAMP SIGNAL
-
CONSULT-
Select “ABS”, “Data Monitor” mode and “EBD WARN LAMP” according to this order.
-
Ignition switch OFF.
-
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.
-
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.
-
Other materials:
B24d4-08 A/c Control Comm
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
...
Secondary Pressure Solenoid Valve Circuit
Diagnosis Procedure
Diagnosis Procedure
CHECK HARNESS CONNECTOR
Ignition switch OFF.
Check the mating condition of TCM
harness connector and CVT unit harness
connector.
Is the inspect ...
Regulatory information
FCC Regulatory Information
CAUTION: To maintain full compliance with FCC RF exposure guidelines, only
the supplied antenna must be used. The use of unauthorized antennas, modifications,
or attachments could damage the transmitter and may result in non-compliance
with FCC regulations app ...