I have an electric AC truck serial is e12029.
It has 2 Danahar AC motion controllers fro traction and lift.
Truck drives ok when i pull the lift levers it throws up error code E0 and the truck judders as if the motor is trying to turn but cannot, however you can see the lift juddering and forks moving up very slowly.

Battery is ok, there are no earth leakages that i can pick up on the motor cables or the battery.

What i have found is that the connection to the motors the 3 motor cables are full of corrosion and rust, but cannot get to it as the back of the truck need to come off for me to get to the pump motor.

Now i have dropped a clamp meter on the motor cables and there is no current draw, even though the motor shakes the whole truck there is absolutely no current draw.

is this likely to be another encoder related issue??