Clutch Vacuum Vent Valve Switch -F36-

Clutch Pedal Switch Check -F36-, Checking







Special tools and equipment

- VAG 1526 A
- VAG 1527 B
- VAG 1594 A
- VAG 1598/31
- VAS 5051 with VAS 5051/1

NOTE: This signal is designed to prevent speed overshoots and jerkiness on switching from throttle open to throttle closed and vice versa when disengaging clutch. It is needed for the cruise control system.

Test sequence

- Connect testing and information system VAS 5051 and select vehicle system "01 - Engine electronics" in selection. Ignition must be switched on. Connecting VAS 5051 Scan Tool

Display on VAS 5051:







- Under -1- select diagnostic function "08 - Read measured value block".

Display on VAS 5051:







1 - Enter display group.
- Enter "066" for "display group number 066" in zone -2- and confirm entry by pressing -Q- button.

Display on VAS 5051:







- Check indication in display field -2-.

Display Group 066:

- Exit function "08 - Read measured value block" by pressing <- button.

If the display is not as described:

Check switch

- Remove driver's storage compartment.







- Disconnect connector from clutch pedal switch -1-.







- Connect multimeter between terminals 2 and 3 to measure resistance.
- Specified value: approx. 0 Ohms
- Operate clutch pedal.
- Specified value: infinity Ohms (no continuity).

If specified value is not obtained:

- Replace clutch pedal switch.

If specifications are obtained:

Check power supply

- Connect voltage tester VAG 1527 B as follows:







Connector Measure to
terminal

3 Car body Ground point

- Switch ignition on.
- LED should illuminate.

If the LED does not illuminate:

- Check wiring for open circuit and service if necessary.

If the LED illuminates:

Check actuation

- Connect test box VAG 1598/31 to wiring harness for engine control module; do not connect engine control module. Wiring and Component Testing Using VAG1598/31 Test Box

- Check for open circuit and short to positive or Ground in following wiring connection:







Connector Test box VAG 1598/31
terminal Socket

2 39

- Repair any open/short circuit as necessary.