Power Steering Control Module Calibration
Steering Angle Sensor Centering and Software Endstop
Learning
|
Warning:
An inaccurate or not centered steering angle
sensor could limit the operation of the electric power steering
(EPS) and result in personal injury. |
Centering of the steering angle sensor and software endstop
learning might be required after certain service procedures are
performed. Some of these procedures are as follows:
| • |
Steering angle sensor
replacement |
| • |
Steering gear
replacement |
| • |
Power steering assist motor
replacement |
| • |
Steering column
replacement |
| • |
Steering linkage inner tie rod
replacement |
| • |
Steering linkage outer tie rod
replacement |
Note: It is necessary to
perform the steering angle sensor centering BEFORE the software
endstop learning.
Steering Angle Sensor Centering
For electronic power steering equipped vehicles WITH electronic
stability control program and EXTERNAL Steering Angle Sensor, refer
to
Steering Angle Sensor Centering .
The centering procedure of the internal steering angle sensor
(w/o electronic stability program) can be completed with the
following steps:
Conditions: Front axle measured and set, engine running, vehicle
speed 0 km/h (0 MPH), internal steering angle sensor is
activated.
| 1. |
Using the steering wheel,
align the front wheels in the center forward position. |
| 2. |
Using a scan tool, perform the
Configuration/Reset Functions, Steering Wheel Angle Sensor
Centering procedure. |
| 3. |
Steer from the center position
slowly 90° to the left. |
| 4. |
Steer slowly back to the
center position and then slowly 90° to the right. |
| 5. |
Steer slowly back to the
center position. |
| 6. |
Perform the steering movements
again. |
| 7. |
Centering procedure is
completed. |
Software Endstop Learning
The software endstop learning procedure can be completed with the
following steps:
Conditions: Front axle measured and set, vehicle speed
0 km/h (0 MPH), internal steering angle sensor is calibrated
or external steering angle sensor sends a valid CAN signal.
| 1. |
Using a scan tool, perform the
Configuration/Reset Functions, Power Steering Softstops Reset
procedure and follow the on-screen instructions. |
| 2. |
Using a scan tool, perform the
Configuration/Reset Functions, Power Steering Softstops Learn
procedure and follow the on-screen instructions. |
| 3. |
Software endstop learning
procedure is completed. |
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