MFD Fuel Consumption Graph Not Showing

You do know that display graphs are only from this drive? Next to consumption number should be how much you have driven after it was reset. If you drive and don’t reset the consumption and it still doesn’t work then it probably problem with MFD itself. Does everything else in it work?

 

Go to system check mode. Toyota Prius: How to Check the 12v Auxiliary Battery Health - PriusDIY.com Check that it reads OK in all of those. Check that speed is shown when driving. Also check your 12V battery like its instructing.

 

Do the test from that link and you should get three different voltage readings. Post them here. When you get the last one Prius is in ready and you can start driving. Does the speed screen display your speed?

 

Yes that is the problem. But unfortunately I don’t have more information how MFD receives information on vehicle speed. Problem can be with MFD or with some component that sends speed information to it or wiring.

 

Go back to system check mode. If all still read ok press LAN Mon. Do they all still read OK? If there is something that reads CHEK press it. Write down (or take picture) of everything that displays. Then go back by pressing Service in upper right corner. Then do the same to all that says CHEK.

Does your combination meter (speedometer) work normally? Do your odometer and trips work normally? Anything else in the car that doesn’t operate normally?

Maybe there could be some speed signal interrupt switch somewhere that lets you use some function of MFD when vehicle is moving? Does Japanese version have those? Do you see any aftermarket switches anywhere in the car?

 

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They seem to differ from US codes that I have manual for.

In the US manual DB says:
“Mode status error
This code detects a dual alarm.
Inspection for the device indicated by the sub code.”
But your sub code is 1AC and US manual doesn’t know it.

In US manual E0 says:
“Registration complete indication error
When ”Registration complete” command from the master device cannot be received. This code will be detected when signal receiving time is delayed.
–“

Maybe with Japanese version manual but written in English this could be solved. Or maybe somebody else could help…

 

Check the GPS connection,
Did you removed its factory radio , i also have this issue after i replaced the factory radio as it has many different plugs including the GPS