2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 476Get this manual
Section 08 ELECTRICAL Subsection 06 (TESTING PROCEDURE)
GENERAL
NOTE: The 4-TEC engines are equipped with an alternator, not with magnetoRefer to ALTERNATOR subsection for the checking procedure277 and 443 Engines The RER dual trigger coil CDI system has an ignition coil integrated to the MPEMMPEM is connected to single ignition generator coil via 3-connector housing (BLACK and RED wires)MPEM is programmed to recognize signal sent by the switch located on snowmobile consoleWhen switch is activated, MPEM cuts off ignition and engine rev drops at approximately:
ENGINE 277 443 RPM 700 450
Multi-Purpose Electronic Module (MPEM) Connections
593 Engine
A32E3QA