Ignition Coil Resistance (Protege)
- Disconnect ignition coil 3-pin harness connector(s). On 1.6L, remove ignition coil. On both engines, us an ohmmeter to measure secondary resistance between coil towers No. 1 and 4 and between coil towers No. 2 and 3. See Figure . Resistance should be as specified. See IGNITION COIL RESISTANCE table. If resistance is not as specified, replace coil.
- Measure insulation resistance between ignition coil case and terminals No. 1A and 2A. Resistance should be greater than 10-megohms. If resistance is not as specified, replace coil.