Idle Stabilizer Valve

REQUIREMENTS

- Digital Volt/Ohm Meter (DVOM).
- Test Connector kit VW 1594 or Equivalent.
- Refer to Tools and Equipment for test equipment specifications.

RESISTANCE TEST

- Switch DVOM to resistance range

- Connect multimeter between terminals 1 and 2 of IAC valve connector using jumper wires from VW 1594 adaptor kit

Specification: 4 to 12 Ohms

TESTING WITH VAG1551

- Switch OFF ignition

- Disconnect harness connector from IAC valve

- Connect VAG 15278 LED tester to terminals 1 and 2 of harness connector using jumpers from VW 1594 adaptor kit

- Switch ON ignition, perform steps from Output DTM (Diagnostic Test Mode) to activate IAC valve (N 71)LED tester must blink.

- If NO. Check wiring using VAG 1598 Pin Out Box/ Electrical Checks step 26, repair as necessary.

- If wiring OK replace engine control module (J 220).

- If LED tester blinks but valve does not operate replace IAC valve.