Test Functions

Test functions





The test functions are used by service mechanics to check the coding. They also provide help in troubleshooting without the diagnostic tester.
The test functions are only shown in the instrument cluster LO display.
The test functions are activated by pressing the left setting button in the instrument cluster (S/R, 5 seconds) with terminal R or terminal 15 ON. In addition, the test functions can still be called up by pressing the left setting button (S/R for Set/Reset) in the instrument cluster with simultaneous activation of terminal R.
The test functions are shown in the odometer and tripodometer display areas in the top line of the display.
The display of the on-board computer function is retained in the bottom display line.