Interior lights and clock/ fuel range

[Wozza M]

I have an Avensis on a 57 plate

The interior lights have stopped working and the digital clock keeps resetting everytime I turn the car off and the fuel range option keeps altering drastically each time I turn the car back on.

I have checked fuses and bulbs with a multimeter and all are fine.

Please help

[FROSTYBALLS]

Try disconnecting the Battery for 10 minutes to reset things.

How old is the Battery?

[Wozza M]

+ and -

?

[Red_Corolla]

Like Wozza says, you could start by testing at the interior light and finding out which side of the circuit is missing. Earth your tester on one of the door hinge fasteners and switch the light on with the bulb still in place, then see if there's a 12v up there or not. If it's an earth problem, you will find 12v on both sides of the bulb (or 12 on one side and a bit less on the other).