Hi corky
The machine your working on sounds like the same as a BT orion and il be able to verify this with a toyota engineer tomorrow,are you sure it is a fault code, and not parameter 21? which relates to the battery size table apart from that if you are trying to adjust anything on the machine you will need a toyota can key to get into and set the parameter you want,thats why you cant save it and lock it in.....
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