- Defective component:
A84 Control Unit - Engine
or
A37 Control Unit - Anti-Lock Brake System
Important:
Reset the concerned control unit with the diagnostic tester before replacing it. In order to do that, call up the "RESET" function from the PROGRAMMING menu of the current system on the diagnostic tester.
For vehicles with ESP, the Steering Angle Sensor and the Yaw Rate Sensor have to be calibrated by using the diagnostic tester after replacing the control unit.
Note:
The replacement of the components must be done in the listed order.
The system must be checked for proper operation after every replacement.
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