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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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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
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- Check spark plug (Refer to GROUP 16 - Ignition System - On-vehicle Service - Spark Plug Check and Cleaning
).
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Q.
Is the check result normal?
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- Check ignition coil itself (Refer to GROUP 16 - Ignition System - On-vehicle Service - 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.
- Ignition switch: ON
- Voltage between terminal power supply line and body earth.
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Q.
Are the check results normal?
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NO <Vehicles without KOS> : Repair or replace the connector(s), or check and repair the harness of open circuit, and short circuit in power supply line between ignition coil connector and ignition switch connector.
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NO <Vehicles with KOS> : Repair or replace the connector(s), or check and repair the harness of open circuit, and short circuit in power supply line between ignition coil connector and IG1 relay connector.
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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)
Repair or replace the connector(s), or check and repair the harness of open circuit, and damage in earth line between ignition coil connectors and body earth.
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- Check and repair harness between No. 1 ignition coil connector and engine-ECU connector terminal CIL1
- Check and repair harness between No. 2 ignition coil connector and engine-ECU connector terminal CIL2
- Check and repair harness between No. 3 ignition coil connector and engine-ECU connector terminal CIL3
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Q.
Are the check results normal?
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YES <Vehicles without KOS> : Go to Step 7.
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YES <Vehicles with KOS> : Go to Step 8.
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Repair the connector(s) or wiring harness.
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Q.
Are the check results normal?
|
|
Repair the connector(s) or wiring harness.
|
|
|
|
Q.
Are the check results normal?
|
|
Repair the connector(s) or wiring harness.
|
|
|
|
Q.
Does the trouble symptom persist?
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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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