2004 Skidoo ZX Series Service Manual, Page 101Get this manual
Section 03 TROUBLESHOOTING Subsection 04 (ELECTRICAL SYSTEM)
SYMPTOM
REAR LIGHT BULB FLASHES
CONDITION
TESTINSPECTION
NORMAL USE 1Check bulb tightness in housingaLooseness at bulb contact elementsInstall bulb correctly2Check if rear light is properly connectedaConnector housing is partially connectedInstall connector housing properly3Check continuity of wiresaCorroded terminals andor broken wiresReplace terminal(s) or crimp defective wires