1985-1995 Polaris ATV and Light Utility Hauler Service Manual, Page 401Get this manual
ELECTRICAL Reverse Speed Limiter (RSL) System TestingThree Wire Module The three wire module can be identified by module numbers LR40, 41,42,43, and 47The module has a: Black wireproviding ignition control to COl moduleGreen wirereceiving reverse gear indicator light signalYellow or whitereceiving the engine speedRPM signalTroubleshooting Symptom Limits in forward Cause -Circuit problem causing 12V on the green limiter wire in forward -Open circuit from green wire on RSL module, through override switch and reverse light bulb, to ground (LR40 only) No limit in reverse -No 12V to RSL green wire in reverse -RSL black wire not connected to COl box -No alternator output to inform RSL module of engine RPM -Reverse override switch not closing (LR 41,42,43) Limits at wrong RPM -Wrong RSL module for unit -Incorrect alternator output Cure -Repair circuit problem -Replace override button or reverse light bulb and check wire continuity -Repair reverse light indicator wire circuit -Check and repair circuit