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Section 03 TROUBLESHOOTING Subsection 04 (ELECTRICAL SYSTEM) A32E3US Install supply cable to diagnostic connector of snowmobile as per shop manual procedure. Do not connect any supply voltage before starting the vehicle. Start cranking over the engine. While the engine is being cranked, connect 12 V supply to the 2-position housing of the supply cable. Respect polarity +12 V to RED wire, ground to BLACK wire, and check for spark. Fault is on the motor side of ignition system. Continue with the following. Check for spark at spark plug No spark Check that tether DESS cord switch, ignition switch and engine cut-out switch are in place and in the run position. One of the switches was left in the off position. No spark Replace spark plug and retest. Spark returns Spark plug was at fault. OK 360 W - 2 CYLINDER OK SYMPTOM NO START AND NO SPARK Check stator ignition generator coil. Replace stator and retest. OK Check ignition coil. Replace spark plug cap and retest. w OK Replace ignition coil and retest. OK Check connection 11-DA, 11-DE, 11-DC from MPEM. Replace MPEM and retest. OK No good Check trigger coil. Replace trigger coil and retest. OK No good No good No good No good Disconnect the 6-HC connector that has the BLACK/WHITE, WHITE/GRAY, and the BLACK/GREEN wires to the tether cord switch. Place a jumper wire between the BLACK/WHITE and the BLACK/GREEN wires and retest for spark. Disconnect the 6-HG connector that has the BLACK/YELLOW and the BLACK wires and retest for spark. No spark No spark Fault is in the tether cord switch. Inspect and retest. OK Fault is in the engine cut-out switch. Inspect and retest. OK Spark returns Spark returns Spark returns No spark IGNITION SYSTEM DIAGNOSTIC FLOW CHART Check spark plug cap. OK Spark returns No spark Fault is in the charging system. Refer to the charging system diagnostic flow chart to find the problem. mmr2004-Rev 65 |