Nissan Versa (N17): Steering wheel turning force is heavy or light

Nissan Versa 2nd generation (N17) Service Manual / Steering / Steering control system (STC) / 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

  1. Turn the ignition switch OFF to ON.
  2. Perform "EPS" self-diagnosis.

Is any DTC detected?

YES >> Check the DTC. Refer to STC "DTC Index".

NO >> GO TO 2.

2.CHECK THE ILLUMINATION OF THE EPS WARNING LAMP

Check that the EPS warning lamp turns ON when ignition switch turns ON. Then, EPS warning lamp turns OFF after the engine is started.

Is the inspection result normal?

YES >> GO TO 3.

NO >> Perform trouble diagnosis of EPS warning lamp. Refer to STC "Diagnosis Procedure".

3.CHECK EPS CONTROL UNIT SIGNAL (1)

With CONSULT

  1. Start the engine.
  2. Select "ASSIST LEVEL" in "DATA MONITOR" in "EPS".

Does the item in "DATA MONITOR" indicate "100%"?

YES >> GO TO 6.

NO >> GO TO 4.

4.CHECK EPS CONTROL UNIT SIGNAL (2)

With CONSULT

Select "BATTERY VOLT" in "DATA MONITOR" in "EPS".

Does the item in "DATA MONITOR" indicate "10 V" or more?

YES >> GO TO 5.

NO >> Perform trouble diagnosis of EPS control unit power supply and ground. Refer to STC"Diagnosis Procedure".

5.CHECK EPS CONTROL UNIT SIGNAL (3)

With CONSULT

  1. Select "ASSIST LEVEL" in "DATA MONITOR" in "EPS".
  2. Stop the EPS system until the item in "DATA MONITOR" becomes "100%".

    NOTE: While stopping the EPS system, do not turn steering wheel.

  3. Check that the symptom continues.

Does the symptom continue?

YES >> GO TO 6.

NO >> The assist torque decreases because of protection function. This is not a malfunction. Inspection End.

6.CHECK EPS CONTROL UNIT SIGNAL (4)

With CONSULT

  1. Start the engine.

    CAUTION: Never drive the vehicle.

  2. Turn steering wheel from full left stop to full right stop.
  3. Select "TORQUE SENSOR" in "DATA MONITOR" in "EPS".   

Is the inspection result normal?

YES >> GO TO 8.

NO >> GO TO 7.

7.CHECK EPS MOTOR

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

Is the inspection result normal?

YES >> GO TO 8.

NO >> Repair or replace the malfunctioning component.

8.CHECK STEERING WHEEL TURNING FORCE

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

Is the inspection result normal?

YES >> Inspection End

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

EPS Warning lamp does not turn OFF

Description EPS warning lamp does not turn OFF several seconds after engine started. Diagnosis Procedure 1.PERFORM SELF-DIAGNOSIS With CONSULT Turn the ignition switch OFF to ON. Perform "E ...

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 ...

Other materials:

Car phone or CB radio
When installing a CB, ham radio or car phone in your vehicle, be sure to observe the following precautions; otherwise, the new equipment may adversely affect the engine control system and other electronic parts. WARNING A cellular phone should not be used for any purpose while driving so ...

P0962 Pressure control solenoid A
DTC Logic DTC DETECTION LOGIC DTC Trouble diagnosis name DTC detection condition Possible causes P0962 Pressure Control Solenoid "A" Control Circuit Low The following diagnosis conditions are met, and the current monitor reading of the TCM line pressure s ...

Categories


© 2017-2025 Copyright www.niveguide.com
0.0083