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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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- Ignition coil connector check.
- 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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Repair or replace the connector, or 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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Q.
Is the check result normal?
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Check intermediate connector, and repair if necessary. If intermediate connector is normal, check and repair harness between engine control relay connector terminal and ignition coil connector terminal.
- Check power supply line for open/short circuit.
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Repair or replace the 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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Check and repair harness between ignition coil connector terminal earth line and body earth.
- Check earthing line for open circuit and damage.
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- Check and repair harness between ignition coil connector terminal and engine-ECU connector terminal CIL1.
- Check and repair harness between ignition coil connector terminal and engine-ECU connector terminal CIL2.
- Check and repair harness between ignition coil connector terminal and engine-ECU connector terminal CIL3.
- Check and repair harness between ignition coil connector terminal and engine-ECU connector terminal CIL4.
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- Check signal line for open/short circuit and damage.
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Q.
Are the check results normal?
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Repair or replace the connector, or repair the damaged harness wire.
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- Check power supply line for damage.
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Q.
Are the check results normal?
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Repair the damaged harness wire.
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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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