Toyota Corolla Cross: Abnormal Feel at Steering End Position
SYSTEM DESCRIPTION
This vehicle employs end position contact shock reduction control for column EPS, designed to protect components by suppressing torque input when steering mechanism components reach their end position, and contributing to a feeling enhanced steering quality through reduction of the steering end position contact sound.
CAUTION / NOTICE / HINT
NOTICE:
- If components related to the steering gear are replaced without first disconnecting the cable from the negative auxiliary battery terminal, the learned value of the steering end position stored in the vehicle may deviate from the actual steering end position, affecting steering feel.
- In the following situations, perform end position learning:
- When the battery has been replaced, or removed and reinstalled.
- When components related to the steering gear have been replaced.
PROCEDURE
|
1. |
CLEAR STEERING END POSITION INFORMATION |
NOTICE:
When components related to the steering gear have been replaced, perform end position learning.
(a) Center the steering wheel and set the front tires in the straight-ahead position.
(b) Clear the end position learning value.
(1) When using the GTS:
- Follow the instructions on the GTS screen to clear the end position learning value.
|
Tester Display |
|---|
|
End Position Learning Value Clear |
(2) When not using the GTS:
- Turn the ignition switch to ON.
- Disconnect the cable from the negative auxiliary battery terminal for the specified period of time.
- Connect the cable to the negative auxiliary battery terminal.
|
.gif)
|
2. |
PERFORM STEERING END POSITION LEARNING |
(a) Start the engine.
(b) Turn the steering wheel all the way to the left and right alternatingly, 1 time in each direction.
|
|
3. |
CHECK STEERING END POSITION LEARNING |
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Status of Learned Left/Right End Position for End Torque Limit Control |
Status of learned left/right end position for the end torque limit control |
Left Direction (Unlearned) & Right Direction (Unlearned) / Left Direction (Unlearned) & Right Direction (Temporary Position) / Left Direction (Unlearned) & Right Direction (Decision Position) / Left Direction (Temporary Position) & Right Direction (Unlearned) / Left Direction (Temporary Position) & Right Direction (Temporary Position) / Left Direction (Temporary Position) & Right Direction (Decision Position) / Left Direction (Decision Position) & Right Direction (Unlearned) / Left Direction (Decision Position) & Right Direction (Temporary Position) / Left Direction (Decision Position) & Right Direction (Decision Position) / Reading Impossibility |
Left Direction (Decision Position) & Right Direction (Decision Position) |
- |
|
Tester Display |
|---|
|
Status of Learned Left/Right End Position for End Torque Limit Control |
OK:
The Data List value displays "Left Direction (Decision Position) & Right Direction (Decision Position)".
HINT:
If the result is other than "Left Direction (Decision Position) & Right Direction (Decision Position)", perform the procedure again from Step 1.
| NEXT | .gif) |
END |
READ NEXT:
Precaution
PRECAUTION
HANDLING PRECAUTIONS FOR SRS AIRBAG SYSTEM
CAUTION:
This vehicle is equipped with a Supplemental Restraint System (SRS). Failure
to carry out service operations in the correct sequence
SEE MORE:
Outer Mirror Indicator (Module "A" Side) Circuit Short to Battery (C1AB512)
DESCRIPTION
This DTC is stored when the blind spot monitor sensor RH (A)
detects a short to +B in the outer rear view mirror indicator RH.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C1AB512
Outer Mirror Indi
Removal
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 BACK DOOR TRIM UPPER PANEL ASSEMBLY
64790B -
- -
2 BACK DOOR SIDE GARNISH LH
67938A -
- -
3 BACK DOOR SIDE GARNISH RH
67937B -
-
