Nissan Sentra Service Manual: 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
-
Check the wheel alignment. Refer to FSU-6, "Inspection".
-
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
-
Start the engine.
CAUTION:
Never drive the vehicle.
-
Turn steering wheel from full left stop to full right stop.
-
Select DATA MONITOR of EPS and select TORQUE SENSOR.
-
Perform the torque sensor inspection.
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:
Engine coolant temperature gauge
NOTE:
The ignition switch must be placed in the
ON position for the gauge to give a reading.
The gauge indicates the engine coolant temperature.
The engine coolant temperature is within the
normal range when the reading is within the zone
A shown in the illustration.
The engine coolan ...
NISSAN vehicle immobilizer system
The NISSAN Vehicle Immobilizer system will not
allow the engine to start without the use of the
registered key.
If the engine fails to start using a registered key
(for example, when interference is caused by
another registered key, an automated toll road
device or automatic payment device o ...
Shift lock system
Component Function Check
1.CHECK SHIFT LOCK OPERATION (PART 1)
Turn ignition switch ON.
Shift the selector lever to park “P” position.
Attempt to shift the selector lever to any other position with the brake
pedal released.
Can the selector lever be shifted to any other posi ...