2005 Ski-Doo REV Series Shop Manual, Page 223Get this manual
Section 05 ENGINE MANAGEMENT (POWER TEK) Subsection 02 (DIAGNOSTIC PROCEDURES)
WARNING SIGNALS BEEPER CODE long beep per secondLED WARNING DESSRER Blink HI-TEMP Reverse is selectedNormal conditionNo problem detectedVehicle can be driven in reverse1 short beep every 1.5 seconds (when engine is started)NOTE: Engine cannot reach pulley engagement speedVehicle cannot be drivenQuick beepingBlink Bad DESS system connectionDefective tether cordDirt or snow in tether cord capDefective DESS postReinstall tether cord cap correctly over postUse another programmed tether cord capClean tether cord capReplace DESS postPOSSIBLE CAUSE REMEDY
Wrong tether cord cap is installedInstall proper tether cord capProgram tether cord into ECMNOTE: Engine cannot reach pulley engagement speedVehicle cannot be drivenBlink Engine overheat EMS fault (1)Refer to TROUBLESHOOTINGUse B.U.D.Sand check fault codes
2 short beeps every 15 minutes