W54.00-0068-10
1 HHT
2 Multiplexer
3 Adapter cable
4 Diagnostic socket
a Ignition: OFF
b First of all, connect multiplexer (2) and adapter cable (3) to the HHT (1).
c Then, connect adapter cable (3) to the diagnostic socket (4).
Failure to adhere to the order of steps described can result in damage to the multiplexer.
The HHT program recognizes the control module type.
d Ignition: ON
e Start test program (refer to operating instructions of HHT).
Pay attention to system-specific variations which are listed in the section "Basic knowledge of diagnosis" for the particular diagnosis description.
Stored faults which may be caused by disconnected cables or by simulation during test operations, must be erased in the fault memory after completing the work.