With Manufacturer's Scan Tool

Cruise Control System (CCS), Checking

Special tools and equipment
- V.A.G 1551 scan tool or 1552 scan tool with cable VAG 1551/3
- Test box VAG 1598/31
- Hand multimeter VAG 1526 or multimeter VAG 1715
- Adapter set VAG 1594
- Wiring diagram

Check conditions






- All fuses must be OK.
- The battery voltage must be at least 11.5 V.

Test sequence
- Connect the V.A.G 1551 scan tool ((VAG 1552). Then switch ignition on and select engine control module with the "Address word" 01. [1][2]Reading and Clearing Diagnostic Trouble Codes

Indicated on display:

Rapid data transfer HELP
Select function XX

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

Indicated on display:

Read measuring value block
Input display group number XXX

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

Indicated on display: (1 to 4 = Display zones)

Read measuring value block 66 ->
1 2 3 4






- Check the specification for the switch position from CCS operating switch in display zone 4.

Check prerequisites Display zone 3

Switch B in detent at "OFF" 0001
Switch B not in detent at "OFF" 0000
Switch B at "ON" 0011
Switch B at "RES" 1011
Switch A pressed 0111
(Switch B at "ON")

If the specifications are not obtained:
- Press the -> key.
- Press keys 0 and 6 for the "End output" function and confirm input with the Q key.
- Switch off ignition.

If the specifications are not obtained:
- Press -> key.
- Press keys 0 and 6 for the function "End output" and confirm entry with the Q key.
- Switch off ignition.






- Connect test box VAG 1598/31 to control module wiring harness. The engine control module remains disconnected.
- Check wiring from engine control module to CCS operating switch for open/short circuits:
- Check DTC memory, if necessary, repair any faults and then erase DTC memory.
Reading Diagnostic Trouble Codes
Clearing Diagnostic Trouble Codes