Volkswagen Workshop Service and Repair Manuals

The Diesel direct injection system control unit is equipped with a fault memory. Before starting repairs, adjustments and fault finding the fault memory is to be interrogated and final control diagnosis completed =>Page 01-6 .

Note:

When performing check and adjustment operations the control unit may recognized and store faults.

For this reason after completing all check and adjustment operations it is necessary to erase fault memory

=>Page 01-33 .