Clutch Pedal Switch Signal, Checking

Clutch Pedal Switch Signal, Checking

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required
- VAG 1551/1552 Scan Tool using VAG 1551/3 Adaptor cable

Test sequence
- Connect VAG 1551/1552 Scan Tool. Refer to "Scan Tool Testing/Scan Tool Connecting and Initial Checks", Testing and Inspection
- Start engine and let idle
- Press 0 and 1 buttons to select "Engine Electronics" address word 01.

Indicated on display (example only)


06A906018AB Motronic M5.9.2 HS V06 ->
Coding 00000 WSC 00000


- Press -> button.

Indicated on display


Rapid data transfer HELP
Select function XX


- Press 0 and 8 buttons to select "Read Measuring Value Block" function 08.
- Press Q button to enter input.

Indicated on display


Read measuring value block HELP
Input display group number XXX


- Press 0, 6 and 6 buttons to select "Display group 66"
- Press Q button to enter input.

Indicated on display


Read measuring value block 66 ->
1 2 3 4


- Observe values in Display field 2 (4th digit to the left).
- Specification: x 1 x x
- Fully depress clutch pedal and observe value in Display field 2
- Specification: x 0 x x
- Press -> button.







Indicated on display


Rapid data transfer HELP
Select function XX


- Press 0 and 6 buttons to select "End output" function 06.
- Switch OFF ignition.

If specification not obtained
- Connect VAG 1598/22 Test Box to Control Module wiring harness.
- Check wiring for open circuit between Test Box socket 48 and 2-pin harness connector terminal 1 using wiring diagram.
- Wire resistance: 1.5 Ohms maximum

If specification obtained, check wiring for open circuit between 2-pin harness connector terminal 2 and fuel pump relay using wiring diagram.