Nissan Sentra manuals

Nissan Sentra Service Manual: Unbalance steering wheel turning force and return between right and left

Nissan Sentra Service Manual / Steering / Steering control system / Symptom diagnosis / Unbalance steering wheel turning force and return between right and left

Description

Unbalance steering wheel turning force and return between right and left.

Diagnosis Procedure

1.CHECK THE ILLUMINATION OF THE EPS WARNING LAMP

Check the EPS warning lamp while engine is running.

Does the EPS warning lamp turn OFF? YES >> GO TO 2.

NO >> Refer to STC-33, "Diagnosis Procedure".

2.CHECK WHEEL ALIGNMENT

  1. Check the wheel alignment. Refer to FSU-6, "Inspection".

  2. Perform EPS self-diagnosis.

Is the inspection result normal? YES >> GO TO 3.

NO >> Adjustment of wheel alignment. Refer to FSU-6, "Inspection".

3.Check EPS control unit signal

With CONSULT


  1. Start the engine.

CAUTION:

Never drive the vehicle.

  1. Turn steering wheel from full left stop to full right stop.

  2. Select DATA MONITOR of EPS and select TORQUE SENSOR.

  3. Perform the torque sensor inspection.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 5.

NO >> GO TO 4.

4.CHECK EPS MOTOR

Perform the trouble diagnosis of EPS motor. Refer to STC-27, "Diagnosis Procedure".

Is the inspection result normal? YES >> GO TO 5.

NO >> Repair or replace the specific malfunctioning part.

5.CHECK STEERING WHEEL TURNING FORCE

Check the steering wheel turning force. Refer to ST-5, "Inspection".

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

NO >> Check the steering wheel turning force for mechanical malfunction. Refer to ST-5, "Inspection".

Steering wheel turning force is heavy or light
Description Steering wheel turning force is heavy or light. Diagnosis Procedure 1.PERFORM SELF-DIAGNOSIS With CONSULT Turn the ignition switch OFF to ON. Perform EPS self-diagnosis. ...

Unbalance steering wheel turning force (torque variation)
Description Unbalance steering wheel turning force (torque variation). Diagnosis Procedure 1.PERFORM SELF-DIAGNOSIS With CONSULT Turn the ignition switch OFF to ON. Perform EPS self- ...

Other materials:

Interior room lamp control circuit
Description Controls each interior room lamp (ground side) by pwm signal. Note: Pwm signal control period is approximately 250 hz (in the gradual brightening/dimming). Component function check Caution: Before performing the diagnosis, check that the following are normal. Interior room l ...

Thermostat and thermostat housing
Exploded View Thermostat housing Gasket Rubber ring Thermostat Water inlet Clamp Radiator hose (upper) To radiator WARNING: Do not remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure engine coolant escaping from the radiator. ...

Diagnosis system (EPS control unit)
CONSULT Function FUNCTION CONSULT can display each diagnostic item using the diagnostic test modes shown following. Diagnostic test mode Function ECU identification The part number stored in the control unit can be read. Self diagnostic result Self-diagnostic r ...

В© 2014-2025 Copyright www.nisentra.com