Testing cruise control system |
Apart from the control switch on the steering column switch the cruise control system (CCS) has no other components. All functions are carried out by the engine control unit. The data from the operating switch to the engine control unit are transferred over the databus by the electrical system control unit -J519-. The CCS is active above a speed of 30 km/h. |
Special tools and workshop equipment required |
t
| Vehicle system tester -V.A.G 1552- |
t
| Diagnostic cable -V.A.G 1551/3, 3A, 3B oder 3C- |
t
| Hand multimeter (e.g. -V.A.G 1526 A-) |
t
| Adapter cable set (e.g. -V.A.G 1594 C-) |
t
| Test box -V.A.G 1598/31- |
l
| Cruise control activated. |
Check for proper operation |
–
| Connect vehicle system tester -V.A.G 1552-. Switch ignition on and then select “address word” 01 Engine electronics → Chapter. |
–
| Select function 08 “Read measured value block” and display group 006. |
|
|
|