Can anyone shed some light on an issue i am having on a toyota reach (same as the BT), it uses the Danahar motion AC controller and curtis pump controller.

The truck drives very slow but no error codes appear on the display. During tests at one point the truck began to drive fast as it should when at full throttle, then after a while it began to drive slow again. It very intermittently would drive after resetting the key.

I have tried another foot controller assembly but made no difference. Removed the magnetic brake off the motor also incase brake was binding, but made no difference.

Any body have any pointers, perhaps a speed limit switch or something of that nature playing up??