Onboard computer diagnostics

[Fi.ES.TA]

You can get a whole bunch of engine temperatures (and other data) by unlocking the dash. It's a pain to do every trip, but if you had a specific interest in the data for one or two trips (to test something maybe) then it's handy.

While starting the engine, hold down the 'mileage reset' button on the rev counter and keep it pressed for 10 seconds. The dash will go into test mode - advance the tests with the button until you get to the temperatures section and leave it there. Go for a drive and watch the constantly updated figures!

This also works on other Fords, Focus and Mondeo being two others I've tried. Hope that helps.

Here's the full list:

1.Shows a Gauge Sweep
2. Shows all ACL on the LCD (LCD TEST)
3. Turns on all the annunciators on the dash (BULB TEST)
4. Displays hexadecimal value for ROM level (FirmWare Revision)
5. Displays the hexadecimal value for EE level
6. Shows DTC (Diagnostic Trouble Code) ---------------------> THIS IS VERY, VERY, VERY HANDY!
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/TRACS Error Code
15. Electronic brake distribution (EBD) failure
16. Illumination
17. Crank Sense