Rev 1 is cable driven and
![](./images/smilies/spacer.gif)
(as KM already said) either the cable will be knackered or the mechanical sender at the gearbox end will have seized up or the cog on it will be knackered.
![](./images/smilies/spacer.gif)
Just had the same problem! I found it difficult to source a second hand sender but got one eventually.
![](./images/smilies/spacer.gif)
Think the whole bit from Toyota new is about 140 quid.
![](./images/smilies/spacer.gif)
Other revs are electronically driven apparently, so make sure if u go second hand you make sure whatever u get given is the same revision.
![](./images/smilies/spacer.gif)
.
![](./images/smilies/spacer.gif)