Mazda MX-5 NA silhouetteMX-5 NA

IGNITION SYSTEM — TROUBLESHOOTING

G-18flowchart

TROUBLESHOOTING

Misfire troubleshooting

1
Misfire
2
1. Turn ignition switch ON 2. Connect diagnosis connector terminals (TEN) and (GND) with a jumper wire 3. Check if MIL illuminates
YES
Refer to Section F (Refer to page F-80)
NO
3
Check 1: Check if resistance of secondary windings is OK (Refer to page G-21)
NO
Check ignition coil (Refer to page G-21)
YES
4
Check 2: Check if resistance of high-tension lead is OK (Refer to page G-22)
NO
Check high-tesion lead (Refer to page G-22)
YES
5
Check spark plug (Refer to page G-20)

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