HOSE VENTAIR 3C8504 - Caterpillar

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Observe the status screen on the ET for the gear indicator. The readout displays the signals from the transmission gear switch. n - Neutral1 - First gear2 - Second gear3 - Third gear4 - Fourth gear5 - Fifth gear6 - Sixth gear7 - Seventh gear8 - Eighth gear
Operate the machine and shift the transmission to each gear. Observe the display. Check that the display matches each gear of the transmission.
The display matches the gear. The gear indicator switch is operating correctly.
The display does NOT match. There is a defect. The ECM should have detected a diagnostic code of CID 0700.