Idle Stabilization System (VANAGON)
- Attach Test Meter (VW 1315/2) and Adapter (US 1119) to idle stabilization valve. See Figure
. Set meter to milliamp scale. Start engine. Observe meter while turning A/C control switch to the "ON" position. If milliamp reading increases, system is okay.
- If milliamp reading does not increase, turn ignition coil off. Connect LED test light between terminal No. 2 and terminal No. 5 of idle stabilization control unit connector. See Fig 1
. Start engine and cycle A/C switch on and off.
Courtesy of VOLKSWAGEN UNITED STATES, INC.
- Test light should be on when A/C switch is in the "ON" position. If okay, replace idle stabilization control valve. If light does not go on, repair wiring between idle stabilization control unit terminal No. 2 and A/C compressor clutch.