ABS ITT Mark 20 IE System
On Board Diagnostic (OBD) with V.A.G 1551 Scan Tool or Tester VAS 5051 (flow chart)Flow Chart
^ Connect V.A.G 1551 and check DTC memory again (02).
^ Erase DTC memory (05)
^ Perform test drive at more than 20 km/h (13 mph) and allow the ABS to regulate braking.
^ Check DTC memory again after test drive. If "No DTC recognized" appears on display of V.A.G 1551 after repairing DTCs and performing test drive the On Board Diagnostic (OBD) is completed.