September 2016 Service and Repair ManualFault CodesPart No. 1272222 GS-84 • GS-90 115Control System F ault Cod esControl System F ault C odesID System Ready LED Condition Result Solution1 INTERNAL ECUFAULTRed Internal ECM error. System shutdown. Replace ECM.2 PLATFORM ECUFAULTRed Platform/ECMcommunication error.System shutdown. Troubleshoot control cable ORtroubleshoot platform controls.20 CHASSIS STARTSW FAULTRed Engine start button fault atground controls.Engine will notstart.Replace ECM.21 CHASSIS CHOKESW FAULTRed Starting aid button fault atground controls.Starting aiddisabled.Replace ECM.22 CHASSIS UP SWFAULTRed Up switch fault at groundcontrols.Platform upfunction inhibited.Replace ECM.23 CHASSIS LIFTSW FAULTRed Platform up/down enablebutton fault at groundcontrols.Platform up/downfunctions inhibited.Replace ECM.24 DOWN SWFAULTRed Down switch fault at groundcontrols.Platform downfunction inhibited.Replace ECM.25 LEFT TURN SWFAULTRed Left turn switch fault. Malfunctioningsteer leftmicroswitch.Troubleshoot steer leftmicroswitch.26 RIGHT TURN SWFAULTRed Right turn switch fault. Malfunctioningsteer rightmicroswitch.Troubleshoot steer rightmicroswitch.27 DRIVE ENABLESW FLTRed Function enable switch onjoystick is activated whenmachine is turned on.Machine functionsdisabled.Release function enable switchon joystick before power up ORreplace joystick.28 OFF NEUTRALDRIVE JOYSTICKRed Drive joystick off neutralwhen machine is turned on.Machine functionsdisabled.Release joystick before powerup OR replace joystick.29 PLATFORM LIFTSW FAULTRed Lift enable button fault at theplatform controls.Platform up/downfunctions inhibited.Troubleshoot button OR replaceprinted circuit board at platformcontrols.30 OFF NEUTRALLIFT JOYSTICKRed Up/down switch off neutral. Platform up/downfunctions inhibited.Replace up/down switch atplatform controls.31 PLATFORMCHOKE SWFAULTRed Starting aid fault at theplatform controls.Starting aiddisabled.Troubleshoot button OR replaceprinted circuit board at platformcontrols.
