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Accessing Hidden Functions of the Onboard Computer

Model: Ford Focus MK 1 - Years: 1998, 1999, 2000, 2001, 2002, 2003, 2004
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Video tutorial

This guide shows you step by step how to access the hidden functions of the onboard computer in your Focus. Start by turning the key to the off position and press the button to reset the trip odometer.

After a few seconds, when the word -Test- appears, release the button and begin scrolling through the various functions presented. Below is the correspondence between the terms and their meanings: GAGE = Gauge needle test 8888 = LCD display test buLb = Indicator light test rXXX = EPROM version eXXX = NVRAM version * DTC = Error list; if it shows NONE, the list is empty.

If errors have been recorded, the first will be displayed, and you can scroll through them by pressing the reset button. XXX.X = Speed in miles XXX.X = Speed in km/h XXXX = Engine RPM FXXX = Fuel amount XXXC = Coolant temperature bXXX = Battery voltage Ab-X = ABS status; H indicates active when braking, L indicates at rest Eb-X = EDB status; behaves the same as the ABS indication IL-X = Interior lighting status; H indicates on, L indicates off Cr-X = AIRBAG sensor status (Crack Sense)


Updated on 31 January 2026 by ScegliAuto


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