The ASD control module (N30/2) features DTC memory which can store only one code in memory.
The first recognized fault is stored in memory. The memory is not erased when the vehicle battery or ASD control module are disconnected.
The DTC can be read via:
the impulse counter scan tool, or
the ASD MIL (A1e24) in the instrument cluster.
1. Connect impulse counter scan tool to data link connector (X11/4) according to connection diagram on following page.
Connect yellow wire from impulse counter scan tool to:
ASD control module socket 5.
2. Engine: at Idle.
3. Read out DTC for ASD control module (N30/2), see section 0.