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Diagnostic Switch KM-640, Connect > < Types of Fault

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Checking with Diagnostic Switch KM-640

 

The diagnosis modes, programming and setting of the Multi-Info-Display can be activated analogously to the procedure for the Board Computer BC 2400 (see Checking Procedures "Board Computer, Vectra/Cavalier, Omega/Carlton, Senator-B" dated December 1989). Instead of the keys and contacts used for the board computer, however, other Multi-Info-Display controls must be used for actuation of the same functions. The following table gives a survey of the modified key allocations.

 

 

MID

BC 2400

Function key "S"

Stepping key

Start key "R"

Start key

Clock key

Hours hole contact

Setting key

Minutes hole contact

 

 

It may be possible that only diagnosis mode 1 and mode 5 can be selected when checking with KM-640. This is not a Multi-Info-Display malfunction; modes 2 to 4 in earlier Multi-Info-Display versions cannot be activated due to lack of memory space.

Activated modes can be cancelled by removing the diagnostic switch from the vehicle diagnostic plug.

 

Diagnostic Switch KM-640, Connect > < Types of Fault