DTC 00625

DTC Code 00625:
Vehicle Speed Signal
Questionable Signal

Special Tools, Testers And Auxiliary Items:
- VAG 1598/18 Test Box adaptor
- Fluke 83 Multimeter or equivalent
- VW 1594 Adaptor kit
- Wiring diagram

Testing Procedure:
Display will appear as shown:

Rapid data transfer HELP
Select function XX

- Press 0 and 6 buttons to select Function 06 "End data transfer"
- Press Q button to enter input
- Switch OFF ignition





- Connect VAG 1598/18 Test Box adaptor to ECM wiring harness
- Switch ON ignition
- Bridge sockets 1 + 42 with jumpers from VW 1594 adaptor kit
- Switch multimeter scale to Voltage range and connect between adaptor sockets 43 + 33
- Raise front left-hand wheel
- Rotate front wheel and observe voltage display
Specification: between 0 and 5 volts minimum (fluctuating)

If voltage does not fluctuate:
- Check wiring to speedometer or to Vehicle Speed sensor. SEE Electrical Wiring Diagrams