To End Test Function

Ignition key at terminal R or terminal 15 ON.
Press and hold the reset button for longer than 10 seconds.

The main menu appears in the instrument cluster

Press the reset button repeatedly until "Test End" is highlighted and then hold down the reset button until the words "Test End?" appear or
call up test function 19 (RESET).

NOTE: To protect against unauthorized access, all test functions (with the exception of test 1 and test 2), are locked again after a RESET and "sleep cycle".