Programming and Relearning

Horn Activation

Checking signal horn activation

Activation of signal horns occurs via the spring-bearing cover in center of steering wheel. Depending on equipment, signal horn activation is either a structural component of the steering wheel or integrated into the driver side airbag unit and cannot be replaced individually. If signal horn activation is malfunctioning, replace driver side airbag unit or steering wheel.

• Danger of the airbag deploying!

• The airbag could deploy if the unit is mishandled.

• Follow all Safety Precautions when working with airbags.

Remove the driver side airbag unit.

Remove the steering wheel.

Checking signal horn activation

- Connect the Vehicle Diagnostic Tester. Refer to => [ Vehicle Diagnosis, Testing and Information Systems ] Vehicle Diagnosis, Testing and Information Systems.

- On the Vehicle Diagnostic Tester, select "Guided Fault Finding".

- Using the "GO TO" button, select "Functions/Component selection" and the following menu options in sequence:

• Body

• Electrical Equipment

• 01 - On Board Diagnostic (OBD) capable systems

• Steering wheel electronics

• Electrical Components

• H - Signal Horn Activation