With Generic Scan Tool

Clutch Vacuum Vent Valve Switch -F36-, Checking







Recommended special tools and equipment
- V.A.G1526A hand multimeter
- V.A.G 1527 B Voltage Tester
- V.A.G1594A connector test kit
- V.A.G1598/31 test box

NOTE: This signal helps prevent excessive RPM oscillations and tip-in shocks when clutch is disengaged and is required for the cruise control system.

Test requirement:
- Ignition switched off.

Check switch
- Remove driver-side storage compartment.







- Disconnect electrical harness connector at clutch vacuum vent valve switch -1-.







- Connect multimeter between terminal 2 and 3 for resistance measurement.

Specified value: approx. 0 Ohms

- Depress clutch pedal.

Specified value: Infinite Ohms (no continuity)

If specified values are obtained:

Checking voltage supply







Harness connector Terminal Measure to
3 Chassis Ground (GND)

- Switch ignition on.
- LED must light up.

- Switch ignition off.

If LED does not light up:
- Check the wire connection for open circuit.

Specified value: Wire resistance max 1.5 Ohms

- If necessary, repair wire connection.

If LED lights up:

Checking control wire
- Connect test box to wiring harness of Engine Control Module (ECM). ECM is not connected. Test Box, Connecting For Wiring and Component Test







- Check the following wire connection for open circuit according to wiring diagram.

Harness connector Terminal Test box Socket
2 39

Specified value: Wire resistance max 1.5 Ohms

- Check the wire for short circuit to B+ and Ground (GND).

Specified value: Infinite Ohms (no continuity)

- necessary, repair wire connection.

Final procedures
After repair work, the following work steps must be performed in the mentioned sequence:
1. Check DTC memory. Mode 3: Check DTC Memory
2. If necessary, erase DTC memory. Mode 4: Reset/Erase Diagnostic Data
3. Generate readiness code. Readiness Code, Generating

- End diagnosis and switch ignition off.