19-18 GS500K3 ('03-MODEL)
No spark or poor spark
Check the ignition system couplers for
Inspect the battery voltage between
input lead wires (O/W and B/W) at the
ignitor unit with the ignition switch "ON"
Inspect the ignition coil primary peak
NOTE: This inspection method is
applicable using only for Multi circuit
tester and peak volt adaptor.
Inspect the ignition coil.
Inspect the signal generator peak
voltage and its resistance.
NOTE: This signal generator peak
voltage inspection is applicable using
only for Multi circuit tester and peak volt
* Check that the transmission is in neutral position and
the engine stop switch is in the RUN position.
Inspect that the fuse is not blown and battery is
fully-charged condition before the diagnosis.
• Poor connection of couplers
• Faulty ignition switch
• Broken wire harness or poor
Inspect the spark plug.
• Poor connection of spark plug cap.
• Faulty ignitior unit
• Poor connection of ignition couplers.
connection of related circuit
• Faulty spark plug
• Faulty ignition coil
• Faulty signal generator