Component Tests and General Diagnostics
Multifunction Steering Wheel, Troubleshooting
The multifunction steering wheel control module communicates only with the steering column electronics control module. Data commands are processed there once more for further communication with subsequent control modules (radio system, multi-function display "MFA" and telephone system).
Multifunction Steering Wheel has On Board Diagnostic (OBD) capabilities.
When performing any service work or Fault Finding, use the Vehicle diagnostic tester under Guided Fault Finding and.