aceventura
Doesn't drive like this
Yeah, they are just for calibrating the trip computer. You can do a search and it will tell you exactly how to do it.
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See:
Unofficial Holden Commodore Archive - Technical Tips
To paraphrase:
Start the special functions: press MODE and RESET while turning the ignition on (The computer will do a self diagnostic check and display the word 'FAIL' if it finds an internal fault). Press mode to swap between the different displays.
Display 1: Speed in km/h, fuel in L/h, Button Test.
Display 2: Battery Voltage, Fuel tank sender Volts (full ~4.4V, half ~6.6V, empty ~8.5V), Button Test.
Display 3: Energise all segments of the display.
The button test shows a '0' each time a button is pressed. Each different button will illuminate a different spot.
Anyway it seems to be the same for my VS - not sure about the fuel pressure mentioned in a previous post though?
No, sorry - I wansn't all that clear in the previous post. The extra functions are for L3 instrument clusters only (i.e. with trip computer).
The speed alert trick only gives a digital speedo.
Theres no way to turn off the led flashing led while in digital speedo really. I changed my led to blue which looks much better in daylight, but at night its super bright so i put some black tape over it.