Nissan Sentra B18 (2020-2025) Service Manual: Abs Warning Lamp
Component Function Check
Component Function Check
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CHECK ABS WARNING LAMP FUNCTION
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Check that ABS 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 >>Inspection End.
NO >>Refer to Diagnosis Procedure.
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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 error-detected 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 ABS WARNING LAMP SIGNAL
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CONSULT-
Select “ABS”, “Data Monitor” and “ABS 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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Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen items (Trouble
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DTC detecting condition
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Diagnosis Procedure
Diagnosis Procedure
CHECK HARNESS CONNECTOR
Ignition switch OFF.
Check the mating condition of TCM
harness connector and CVT unit harness
connector.
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Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen items
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DTC Detection Condition
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