Troubleshooting - KYMCO AHG5 Service Manual

17. IGNITION SYSTEM
DT X360

Troubleshooting

2.3.
LOW PEAK VOLTAGE
˙ Cranking speed is too low (battery is undercharged).
˙ Poorly connected connectors or an open circuit in the ignition system.
˙ Faulty ignition-coil.
˙ Faulty ignition control module.
NO PEAK VOLTAGE
˙ Short circuit in engine stop switch or ignition switch wire.
˙ Faulty engine stop switch or ignition switch.
˙ Loose or poorly connected ignition control module connectors.
˙ Open circuit or poor connection in ground wire of the ignition control module.
˙ Faulty ignition pulse generator.
˙ Faulty ignition control module.
PEAK VOLTAGE IS NORMAL, BUT NO SPARK JUMPS AT THE PLUG
˙ Faulty spark plug or leaking ignition coil secondary current.
˙ Faulty ignition coil.
˙ Spark plug leakage.
˙ Spark plug gap too small
˙ Spark plug worn out
SPARK PLUG NO SPARK
˙ Blown out fuse
˙ Faulty ignition switch
˙ Engine stop switch is at "STOP" position
˙ Faulty ignition coil
˙ Broken wire or short circuit
˙ Faulty installation of CPS
˙ Faulty ECU
˙ Faulty ECU relay
˙ Faulty rollover sensor
˙ Faulty side stand switch
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