Clutch Pedal Switch, Checking

Clutch Pedal Switch, Checking

Special tools, testers and auxiliary items required

• (VAG1526A)

• (VAG1527B)

• (VAG1594A)

• (VAG1598/31)

• (VAS5051) with (VAS5051/1)

• 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 (VAS5051 ) and select vehicle system "01 - Engine electronics" in selection. Refer to => [ VAS 5051, Connecting and Select Functions ] VAS 5051, Connecting and Select Functions. Ignition must be switched on.

Display on (VAS5051):





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

Display on (VAS5051):





1. Enter display group

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

Display on (VAS5051):





- Check indication in display field - 2 -.





- Exit function "08 - Read measured value block" by pressing arrow 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: infinite ohms (no continuity)

If specified value is not obtained:

- Replace clutch pedal switch.

If specifications are obtained:

Check power supply

- Connect voltage tester (VAG1527B) as follows:









- 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 (VAG1598/31) to wiring harness for engine control module; do not connect engine control module. Refer to => [ Wiring and Component Check with Test Box VAG 1598/31 ] Wiring and Component Check With Test Box VAG 1598/31.

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









- Repair any open/short circuit as necessary.