HHT Interface

The instrument cluster has diagnostic capabilities. In other words, diagnosis is possible using a hand held test (HHT). The instrument cluster therefore has a line (K-line) which is connected to the data link connector (X11/4).

The instrument cluster, inducing the Active Service System (ASSYST), is tested with the HHT. The following functions can be selected:
Control module version
Error memory
Actual valves
Controls
Manual transmission adaptation: - variant coding - settings