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- Remove the spark plug and install it to the ignition coil.
- Connect the ignition coil connector.
- Disconnect all injector connectors.
- At the engine start, check each spark plug produces a spark.
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Q.
Is the check result normal?
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Check Inspection Procedure - ignition circuit system (Refer to ).
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- Check ignition coil itself (Refer to GROUP 16 - Ignition System - Ignition
Coil Check
).
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Q.
Is the check result normal?
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Replace the ignition coil.
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- Disconnect connector, and measure at harness side.
- Resistance between terminal earth line and body earth
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OK: Continuity (2 Ω or less)
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Q.
Are the check results normal?
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![](../../../buttons/03btn002.png)
Check and repair connector(s) or harness between earth
line ignition coil connectors and body earth.
- Check earthing line for open circuit and damage.
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- Check and repair harness CIL1 line between No. 1
ignition coil connector and engine-ECU connector
- Check and repair harness CIL2 line between No. 2 ignition coil connector and engine-ECU
connector
- Check and repair harness CIL3 line between No. 3 ignition coil connector and engine-ECU
connector
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Q.
Are the check results normal?
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Repair the connector(s) or wiring harness.
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- Reconfirmation of diagnosis code.
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Q.
Is diagnosis code set?
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunctions ).
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