Test sequence
WARNING: This page is about a different variant/trim than selected.
- Remove wiper arms and plenum cover: โ 92 WINDSHIELD WIPER & WASHER SYSTEM
- Connect test box VAG1598/31 to control unit wiring harness.
- Test for open circuit in wiring between dash panel insert and contact 27 on the test box, using wiring diagram โ Electrical Wiring Diagrams, Troubleshooting and Component Locations