Work sequence
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2001 Volkswagen Jetta, 2001 Volkswagen Golf, 2000 Volkswagen Jetta, 2000 Volkswagen Golf, and 1999 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Test and measuring equipment must be secured to rear seat and operated by a 2nd person.
CAUTION:
If test and measuring equipment is operated from the front seat and vehicle is involved in an accident, there is a possibility the person may be injured when the airbag is deployed. Secure Scan Tool (ST) to rear seat.
- Connect Scan Tool V.A.G 1551/1552 → Scan Tool V.A.G 1551 , connecting .
- Start engine and let idle
- Press - 0 - and - 1 - to select Address word 01:
"Engine electronics"
Indicated on display:
| Rapid data transfer HELP Select function XX |
- Press buttons - 0 - and - 8 - for "Read measured value block" and confirm with - Q - button.
Indicated on display:
| Read measured value block HELP Input display group number XXX |
- Press buttons - 0 - , - 0 - and - 6 - for "Display group number 6" and confirm with - Q - button.
- Test drive with 2nd person to observe display.
Observe safety precautions when driving road test → Safety precautions .
- Observe figure in display field 1.
| Read measured value block 6 -> xxx km/h 0 0 0 000000 255 |
Specification: approx. road speed
- Press → button.
- Press buttons - 0 - and - 6 - for "End output" and confirm with - Q - button.
- Switch off ignition.
If no speed is indicated:
- Remove wiper arms and cowl panel →92 WINDSHIELD WIPER & WASHER SYSTEM
- Connect test box V.A.G 1598/22 (through my 1999) or test box V.A.G 1598/31 (from my 2000) to control module wiring harness.
- Connect electrical tester between following sockets:
- Through MY 1999: 1 (ground) and socket 51 (speed signal)
- From MY 2000: 4 (ground) and socket 20 (speed signal)
- Lift vehicle at front left.
- Switch on ignition.
- Rotate front wheel and observe LED in electrical tester.
LED must flash
(approx. four times per wheel rotation).
NOTE:
- If necessary, hold front right wheel to prevent it from turning.
- If diode test lamp does not flash, check wiring from following terminal of Engine Control Module (ECM) J248 connector, to instrument cluster for open/short circuit:
- Through MY 1999: 51
- From MY 2000: 20
→ Electrical Wiring Diagrams, Troubleshooting and Component Locations
- Check DTC memory, if necessary, repair any malfunctions and erase DTC memory → Diagnostic Trouble Code (DTC) memory, checking and erasing
- Display readiness code → Readiness code, displaying .
If DTC memory has been erased:
- Readiness code must be reset → Readiness code, setting .