Idle Stabilization System
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1992 Volkswagen Passat, 1992 Volkswagen Jetta, 1992 Volkswagen Golf, 1992 Volkswagen GTI, and 1992 Volkswagen Fox. However, it is still accessible from the selected car via links, so may be relevant.
- Attach Test Meter (VW 1315/2) and Adapter (US 1119) to idle stabilization valve. Set meter to milliampere scale. Start engine. Observe test meter while turning A/C control switch to on position. If milliampere reading increases, system is okay.
- If milliampere reading does not increase, turn ignition switch off. Connect test light between terminals No. 2 and No. 5 of idle stabilization control unit connector. See Fig 1 . Start engine and cycle A/C switch on and off.
- Test light should be on when A/C switch is in on position. If light is on, replace idle stabilization valve. If light does not go on, repair wiring between idle stabilization control unit terminal No. 2 and A/C compressor clutch.