If controller has version 1.08 in it code AL11 will come up normally code AL10.would come up code states main controller capacitors did not charge within 500ms of key on check for loose or damaged wire connection check wire connection at contactor pump Motor and traction motor check for short on main harness check for short in component coil disconnect battery disconnect all drive motor pump motor solenoid brake and coil connections at the component end of the harness tape wire ends to prevent shorts discharge controller by placing a 200 2w resistor across battery + and B reconnect battery and turn on key switch use volt meter and observe voltage across B+and B if there is no voltage increase replace controller if there is steady voltage increase to battery voltage connect each accessory one at a time until the fault occurs to identify damaged component damage controller replace controller hope this helps