Clutch Pedal Switch, Checking

Signal From Clutch Pedal Switch

Special tools and equipment
- V.A.G 1551 Scan Tool or vehicle system tester V.A.G 1552 with cable V.A.G 1551/3
- Test box V.A.G 1598/31
- Hand multimeter V.A.G 1526 or multimeter V.A.G 1715
- Adapter set V.A.G 1594
- Wiring diagram

Check conditions







- All fuses must be OK.
- Battery voltage must be at least 11.5 V.
- All electrical consumers, e.g. lights and rear window defroster must be switched off

Test sequence
- Connect VAG 1551 Scan Tool ((V.A.G 1552). Switch ignition on and select engine control module with "Address word" 01. (Connecting scan tool and selecting engine control module). Refer to "VAG1551 Scan Tool Tools and Equipment

Indicated on display


Rapid data transfer HELP
Select function XX


- Press keys 0 and 8 for function "Read measured value block" and confirm entry with Q key.

Indicated on display


Read measured value block HELP
Input display group number XXX


- Press keys 0, 6 and 6 for "display group 66" and confirm with Q key.

Indicated on display


Read measured value block 66 ->
1 2 3 4


- Observe values displayed in display zone 2 (2nd digit from left). Specification: x 0 x x
- Depress clutch pedal fully and observe values in display zone 2. Specification: X 1 x x
- Press -> key.
- Press keys 0 and 6 for "End output" function and confirm input with the Q key.
- Switch ignition off.

If the specification is not obtained:
- Remove shelf on driver's side:
- Pull connector off clutch pedal switch.







- Connect multimeter to measure resistance between contacts 1 and 2.
Specification: approx. 0 Ohm
- Depress clutch pedal.
Specification: infinity Ohm (no continuity)

If the specification is not attained:
- Replace clutch pedal switch.


NOTE: Observe installation position of clutch pedal switch in bearing bracket upper assembly hole.


- Check DTC Memory, if necessary, repair any malfunctions and then Erase DTC Memory, Checking and Erasing DTC Memory. Refer to "Displaying and Reading Trouble Codes/With Manufacture Scan Tool/Check DTC Memory (Function 02)" Testing and Inspection
- Read readiness code. If DTC memory has been erased or engine control module was disconnected from permanent positive, readiness code must be generated again: Refer to "Monitors, Trips and/or Drive Cycle/ Reading Readiness Code" Testing and Inspection
Engine code AWW, Refer to "Monitors, Trips and/or Drive Cycle/Generating Readiness Code" Testing and Inspection

If the specification is obtained:







- Connect multimeter using aux. cables from V.A.G 1594 to measure voltage between contact 1 and Ground. Switch ignition on.
Specification: At least 11.5 V

If the specification is not attained:
- Check wiring between 2-pin connector contact 1 and fuse holder using wiring diagram.

If the specification is obtained:






- Connect test box V.A.G 1598/31 to control module wiring harness. Engine control module remains disconnected.







- Check wiring for open circuit between test box and 2-pin connector using wiring diagram:
Contact 2+socket 39
Wire resistance: Max. 1.5 Ohm
- Additionally check wires for short to one another.
- Additionally check wiring for short to battery positive or Ground.

If no malfunction is detected in the wiring:
- Replace engine control module.