Cruise Control System (CCS)

CCS, checking


- Connect the VAS 5051 tester or VAG 1551 scan tool
- Select the control module for engine electronics using address word 01.

Note: Except for operating switches, the cruise control system does not have any of its own components. All of its functions are controlled by the Engine Control Module (ECM).


Initiating "Read Measuring Value Block"






Indicated on display


- Press buttons -0- and -8-. This selects "Read measuring value block", function 08.







Indicated on display

- Press -Q- button to confirm input.






Indicated on display:

- Input display group number 066 (engine must be running at idle)
- Press -Q- button to confirm input.

The selected measuring value block is now displayed in standard form.














Indicated on display

Check indications in display fields 2 and 4






Check of indication in display field 2






If the specified value in display field 2 for "cruise control system release" (1000) is not obtained:

- Check control module identification of current Engine Control Module (ECM).






VAG 1551 scan tool display indicates control module coding, for example:

4D0907558.. Control module number (see replacement parts program)
4.2l Engine displacement
V8/5V Construction style of engine (V engine, 8 cylinder, 5 valves)
"G" i.e. no indication Vehicle with or without cruise control system
D.. Data version (software version) of control module
Coding 6753 Engine Control Module (ECM) coding
WSC 06812 Factory identification from VAG 1551, with which the last coding was performed

- If there is no "G" under component identification, cruise control must be activated first

Only for vehicles with automatic transmission:

- Road test vehicle and exceed 30 km at least once. Do not switch off engine upon completion. Leave selector lever in -2-, -3- or -D-.
- Engage parking brake.

Note: For vehicles with automatic transmission, the voltage supply for the cruise control switch is not switched on until a speed of above 30 km/h is reached with selector lever in position -2-, -3- or - D-. The voltage supply will then be maintained at ideal, as long as a driving mode (aside from -1- or -R-) is selected.






Check of indication in display field 4






Switch -B-






If the specified values in display field 4 are not obtained, although switch B is set to "ON" (0011):

- Connect VAGI 598/31 test box to wiring harness for Engine Control Module (ECM)