Steering Wheel Misalignment

STEERING WHEEL MISALIGNMENT


Description

- The steering wheel position (center) is in the wrong position at driving.
- 4WAS system stops temporarily.

NOTE:
- The steering wheel position (center) is in the wrong position under the following condition. (4WAS system is in the protection mode. This is normal status.)
- When steering frequently
- When driving on a rough road
- When the assist of power steering is not sufficient
- When the battery voltage is weak
- When driving under the status that there is a difference in the steering wheel




STEERING WHEEL MISALIGNMENT


Diagnosis Procedure

1.CHECK SYMPTOM
Stop the vehicle in the straight-ahead position after driving for a period of time.
Does the steering wheel position (center) misalign?
YES - INSPECTION END (Entered in 4WAS system protection function mode in past. 4WAS system is normal at present.)
NO - GO TO 2.
2. 4WAS FRONT ACTUATOR INITIALIZATION
1. Start the engine.

CAUTION:
Stop the vehicle.
2. Steer 90� leftward slowly. Steer 90� rightward and return the steering wheel to the straight-ahead position.
Repeat the above 10 times.
3. Stop the vehicle in the straight-ahead position after driving for a period of time.
Does the steering wheel position (center) misalign?
YES - INSPECTION END (Entered in 4WAS system protection function mode in past. 4WAS system is normal at present.)
NO - GO TO 3.
3. 4WAS SYSTEM CONDITION
With CONSULT-III
1. Start the engine.

CAUTION:
Stop the vehicle.
2. Check "EX OPERAT" item on "DATA MONITOR" of 4WAS front control unit.
Does the item on "DATA MONITOR" indicate "On"?
YES - GO TO 7.
NO - GO TO 4.
4.CHECK STEERING SYSTEM
Check the steering system. Procedures.
Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace the specific malfunctioning part.
5.CHECK WHEEL ALIGNMENT
Check the wheel alignment. Front Suspension (front side), Rear Suspension (rear side).
Is the inspection result normal?
YES - GO TO 6.
NO - Repair or replace the specific malfunctioning part.
6.PERFORM 4WAS FRONT ACTUATOR ADJUSTMENT
1. Perform 4WAS front actuator adjustment. Special Repair Requirement (Pattern 3).
2. Stop the vehicle in the straight-ahead position after driving for a period of time.
Does the steering wheel position (center) misalign?
YES - INSPECTION END.
NO - GO TO 7.
7.CHECK 4WAS SYSTEM IGNITION POWER SUPPLY
Perform the trouble diagnosis of the ignition power supply. C1651.
Is the inspection result normal?
YES - GO TO 8.
NO - Repair or replace the specific malfunctioning part.
8.CHECK 4WAS SYSTEM 4WAS FRONT MOTOR POWER SUPPLY
Perform the trouble diagnosis of 4WAS front motor power supply. C1652.
Is the inspection result normal?
YES - GO TO 9.
NO - Repair or replace the specific malfunctioning part.
9.CHECK 4WAS SYSTEM HISTORY
With CONSULT-III
1. Turn the ignition switch OFF.

CAUTION:
Wait 30 minutes or more after turning the ignition switch OFF.
2. Start the engine.

CAUTION:
Stop the vehicle.
3. Check "EX OPERAT" on 4WAS front control unit "DATA MONITOR".





Is the value of DATA MONITOR "On"?
YES - Replace 4WAS front control unit. Exploded View.
- Perform 4WAS front actuator adjustment after replacing 4WAS front control unit. Special Repair Requirement (Pattern 3).
NO - INSPECTION END