Nissan Sentra Service Manual: Unexpected pedal reaction

Nissan Sentra Service Manual / Brakes / Brake control system / Symptom diagnosis / Unexpected pedal reaction

Diagnosis Procedure

1.CHECK BRAKE PEDAL STROKE

Check brake pedal stroke. Refer to BR-15, "Adjustment".

Is the stroke too big? YES >>

Bleed air from brake line and hose. Refer to BR-17, "Bleeding Brake System".
Check brake pedal, brake booster, and master cylinder for mount play, looseness, brake system fluid leakage, etc. Refer to brake pedal: BR-15, "Adjustment" or brake booster assembly BR-11, "Inspection".

NO >> GO TO 2

2.CHECK ABS FUNCTION

Disconnect ABS actuator and electric unit (control unit) connector to deactivate ABS.
Check if braking force is normal in this condition.
Reconnect connector after inspection.

Is the inspection result normal? YES >> Inspection End.

NO >> Check brake system.

Excessive abs function operation frequency

Diagnosis Procedure 1.CHECK START Check front and rear brake force distribution using a brake tester. Is the inspection result normal? YES >> GO TO 2 NO >> Check brake system. 2. ...

The braking distance is long

Diagnosis Procedure CAUTION: The stopping distance on slippery road surfaces might be longer with the ABS operating than when the ABS is not operating. 1.CHECK ABS FUNCTION Turn ignition ...

Other materials:

Unit disassembly and assembly
Front coil spring and strut Exploded View Piston rod lock nut Strut mount insulator Strut mount bearing Bound bumper Coil spring Lower rubber seat Strut Steering knuckle Front Disassembly and Assembly DISASSEMBLY CAUTION: Do not damage the piston rod when removing comp ...

Towing recommended by NISSAN
(CVT) Continuously Variable Transmission (M/T) Manual transmission NISSAN recommends that your vehicle be towed with the driving (front) wheels off the ground or place the vehicle on a flat bed truck as illustrated. (CVT) Continuously Variable Transmission (M/T) Manual transm ...

Ecu diagnosis information
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