Speedo unlock

How to unlock your Mk3 Mondeo Speedo

Submitted by www.STdriveRS.co.uk

See Instrument Cluster Self-Diagnostic Mode for a more detailed version.

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Instructions on how to unlock your digital display:

1. Have the engine running and press and hold the trip mileage reset button.

2.While holding down the trip mileage reset button turn the engine off.

3.Still with the trip mileage button held down start the engine.

4.After a couple of seconds the word ‘test’ will appear.

5.Now release the mileage reset button and use this to scroll through the various readings. Functions

1 Gauge Test

2 Dial Test

3 Bulb Test

4 Diagnostic Check

5 Diagnostic Check

6 Clock Type (shows ?date 44? if UK)

7 Diagnostic Check

8 Speed MPH

9 Speed KPH

10 Revs

11 Fuel

12 Engine Type

13 Temp of Engine

14 Battery Voltage

15 Diagnostic Check

16 LCD Display

Diagnostic Check (18-30)

Alternative Procedure:

1.Have the engine running and press and hold the trip mileage reset & unit buttons.

2.While holding down the 2 buttons turn the engine off.

3.Still with the 2 buttons held down start the engine.

4.After a couple of seconds the word ‘test’ will appear.

5.Now release the mileage reset button, then the unit button and use this to scroll through the various readings.

Alternative list of functions:

• 1.Shows a Gauge Sweep

• 2. Shows all 8's on the LCD (LCD TEST)

• 3. Illuminates all the bulbs on the dash

• 4. Displays hexadecimal value for ROM level

• 5. Displays the hexadecimal value for EE level

• 6. Shows DTC (Diagnostic Trouble Code)

• 7. Digital Speedometer - mph

• 8. Digital Speedometer - kph

• 9. N/A

• 10. Digital tachometer

• 11.Fuel volume

• 12. Engine coolant temperature

• 13. Battery voltage

• 14. ABS fail

• 15. Electronic brake distribution (EBD) failure

• 16. Illumination

• 17. Crank Sensor