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Steering: Service and Repair




POWER STEERING FLUID AIR BLEEDING

Work Procedure


1. PREPARATION BEFORE WORK

1.Lift up the vehicle.
2.Set the vehicle to READY state or start the engine.

CAUTION:
Check that condition with the vehicle stopped.
3.Check that the battery voltage is 10 V or more.
- GO TO 2.

2. PERFORM STEP 1 OF POWER STEERING FLUID AIR BLEEDING

With CONSULT
1.Select "EPS", "Work Support", and "POWER STEERING FLUID AIR BLEEDING" in sequence.
2.Touch "Start".
3.Perform the work below until the "The number of steering wheel operations" reaches "16".

CAUTION:
- If turned too quickly, air enters the fluid. Therefore, turn the steering wheel so that the value of
"STEERING ANGLE SPEED" on the monitor is 120 deg/s or less.
- Pay attention to the level of power steering fluid.
- Turning the steering wheel continuously in the same direction does not increase the "The number of steering wheel operations". After turning the steering wheel all the way to the right, be sure to turn it all the way to the left, then turn it to the right again.
- If Step 1 is not completed within 10 minutes after "Start" is pressed, time out occurs. Complete
Step 1 within 10 minutes.
- Because this is manual steering work, the steering wheel operation is heavy. This is not a system malfunction.
-Slowly turn the steering wheel to the left until it reaches the stop and hold it there at a "STEERING
TORQUE" of 5.0 Nm or more on the monitor until the "The number of steering wheel operations"
increases.
-Check that the "The number of steering wheel operations" increases.
-Slowly turn the steering wheel to the right until it reaches the stop and hold it there at a "STEERING
TORQUE" of 5.0 Nm or more on the monitor until the "The number of steering wheel operations"
increases.
-Check that the "The number of steering wheel operations" increases.
Is "Perform Step 2" displayed on the CONSULT screen?
YES- After checking the level of power steering fluid, touch "NEXT". Then GO TO 3.
NO- GO TO 6.

3. PERFORM STEP 2 OF POWER STEERING FLUID AIR BLEEDING

With CONSULT
Perform the work below until the "The number of steering wheel operations" reaches "8".

CAUTION:
- If turned too quickly, air may enter the fluid. Therefore, turn the steering wheel so that the value of
"STEERING ANGLE SPEED" on the monitor is 120 deg/s or less.
- Turning the steering wheel continuously in the same direction does not increase the "The number of steering wheel operations". After turning the steering wheel all the way to the right, be sure to turn it all the way to the left, then turn it to the right again.
- When turning and holding the steering wheel all the way to the end of its stroke, the pump may race but this is not a system malfunction.
- If Step 2 is not completed within 10 minutes after "Start" is pressed, time out occurs. Complete Step
1 within 10 minutes.
- Slowly turn the steering wheel to the left until it reaches the stop and hold it there at a "STEERING
TORQUE" of 5.0 Nm or more on the monitor until the "The number of steering wheel operations" increases.
- Check that the "The number of steering wheel operations" increases.
- Slowly turn the steering wheel to the right until it reaches the stop and hold it there at a "STEERING
TORQUE" of 5.0 Nm or more on the monitor until the "The number of steering wheel operations" increases.
- Check that the "The number of steering wheel operations" increases.
Is "Perform Step 3" displayed on the CONSULT screen?
YES- After checking the level of power steering fluid, touch "NEXT". Then GO TO 4.
NO- GO TO 6.

4. PERFORM STEP 3 OF POWER STEERING FLUID AIR BLEEDING

With CONSULT
Perform the work below until the "The number of steering wheel operations" reaches "2".

CAUTION:
- If turned too quickly, air may enter the fluid. Therefore, turn the steering wheel so that the value of
"STEERING ANGLE SPEED" on the monitor is 120 deg/s or less.
- Turning the steering wheel continuously in the same direction does not increase the "The number of steering wheel operations". After turning the steering wheel all the way to the right, be sure to turn it all the way to the left, then turn it to the right again.
- If Step 3 is not completed within 10 minutes after "Start" is pressed, time out occurs. Complete Step
1 within 10 minutes.
- Slowly turn the steering wheel to the left until it stops and hold it there at a "STEERING TORQUE" of 5.0 Nm or more on the monitor until the "The number of steering wheel operations" increases.
- Check that the "The number of steering wheel operations" increases.
- Slowly turn the steering wheel to the right until it stops and hold it there at a "STEERING TORQUE" of 5.0
Nm or more on the monitor until the "The number of steering wheel operations" increases.
- Check that the "The number of steering wheel operations" increases.
Is "Perform Step 4" displayed on the CONSULT screen?
YES- Touch "NEXT". Then GO TO 5.
NO- GO TO 6.

5. PERFORM STEP 4 OF POWER STEERING FLUID AIR BLEEDING

With CONSULT
Perform the work below until the "The number of steering wheel operations" reaches "8".

CAUTION:
- If turned too quickly, air may enter the fluid. Therefore, turn the steering wheel so that the value of
"STEERING ANGLE SPEED" on the monitor is 120 deg/s or less.
- Turning the steering wheel continuously in the same direction does not increase the "The number of steering wheel operations". After turning the steering wheel all the way to the right, be sure to turn it all the way to the left, then turn it to the right again.
- When turning and holding the steering wheel all the way to the end of its stroke, the pump may race but this is not a system malfunction.
- If Step 4 is not completed within 10 minutes after "Start" is pressed, time out occurs. Complete Step
1 within 10 minutes.
- Slowly turn the steering wheel to the left until it stops and hold it there at a "STEERING TORQUE" of 5.0 Nm or more on the monitor until the "The number of steering wheel operations" increases.
- Check that the "The number of steering wheel operations" increases.
- Slowly turn the steering wheel to the right until it stops and hold it there at a "STEERING TORQUE" of 5.0
Nm or more on the monitor until the "The number of steering wheel operations" increases.
- Check that the "The number of steering wheel operations" increases.
Is "The procedure has been successfully completed." displayed on the CONSULT screen?
YES- Touch "EXIT". Then GO TO 6.
NO- GO TO 7.

6. PERFORM SELF-DIAGNOSIS

With CONSULT
Perform "EPS" self-diagnosis.
Is any DTC detected?
YES- Check the DTC. Testing and Inspection.
NO- End

7. ACTION WHEN WORK IS NOT COMPLETED

With CONSULT
Follow the instructions displayed on the CONSULT screen and perform power steering fluid air bleeding again, or perform "EPS" self-diagnosis. Testing and Inspection.
- End
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