Calibrating Steering-Angle Sensor

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Porsche 911, 2012 Porsche 911, 2011 Porsche 911, 2010 Porsche 911, and 2009 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

The steering angle sensor must be calibrated using the menu with PIWIS tester under the specified test conditions:

NOTE: Voltage drop

Risk of irreparable damage to control unit
Risk of damage to control unit
Fault entries in the control unit
Coding in the control unit is aborted
Malfunctions in control unit, even during programming

→ Prior to disconnecting the control unit, switch off ignition and remove ignition key.

→ Ensure that the power supply is not interrupted during programming.

→ Connect a battery charger with a current rating of at least → Nominal value: 40 A to the vehicle battery.

Information

The steering-angle sensor must be recalibrated on the measuring platform following repairs to or work on the chassis/steering or if the steering-angle sensor/steering column switch/hydraulic unit is replaced.
In order to be able to calibrate the steering angle sensor correctly, the vehicle must be on the measuring platform, the wheel alignment values correct and the steering in the straight-ahead position.
The security code is displayed in the Porsche System Tester under menu↓ PSM , Actual values , Security code .

Information

The PIWIS Tester II 9818 instructions take precedence since the description may be different with later Tester releases.

The procedure described here has been structured in general terms; different text or additions may appear in PIWIS Tester II 9818 .

Switch on ignition.
PIWIS Tester II 9818 must be connected to the vehicle before starting it. Switch on ignition.
Select the vehicle type and start the PIDT.
Select PSM control unit and Actual values/input signals and press [F12] to continue.
Select the Actual values menu and press [F12] to continue.
Information

In the straight-ahead position, the steering wheel must deviate by no more than ± 2.0° from the horizontal position (steering center position).
Turn wheels or steering wheel to straight-ahead position.
Select the Security code actual value and press [F12] to continue.
Write down the security code. Press [F11] to return to the PSM function selection.
Select the Maintenance/repairs menu item, enter the security code you wrote down, and press [F12] to continue.
Confirm the security code by pressing [F12].
Before calibrating, first turn the steering wheel from the straight-ahead position approx. 20° to the left and 20° to the right (past straight-ahead position).
Information

In the straight-ahead position, the steering wheel must deviate by no more than ± 2.0° from the horizontal position (steering center position).
Turn wheels or steering wheel to straight-ahead position.
If the wheels are in the straight-ahead position, press [F12] to continue.
Tester confirms Calibration successful .
Carry out a test drive and read out fault memory.