Bombardier SeaDoo 1996 factory shop manual, Page 197Get this manual
Section 08 ELECTRICAL SYSTEM Sub-Section 06 (DIGITALLY ENCODED SECURITY SYSTEM)
Advanced Self-Diagnostic Mode
It needs to be enabled manuallyProceed as follows1Remove safety lanyard from watercraft switch2Press times on the watercraft startstop buttonNOTEshort beep and long beep must be heardThey validate beginning of diagnostic mode3Install safety lanyard on watercraft switch4Press the watercraft startstop button againNOTEIf everything is correct, engine will startOtherwise, refer to the following chartSIGNAL No beep long and short beeps CAUSE REMEDY
Engine actually starts No safety lanyard has ever been programmed in watercraft MPEM
Everything is correct Use programmer and program safety lanyardThis code can occur only when you receive new MPEM from the factory and no key has ever been programmed Check safety lanyard cap condition with the MPEM programmerReplace safety lanyard if reported defective Check switch wiring harness