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- Disconnect connector, and measure at harness side.
- Ignition switch: ON
- Voltage between terminal BAT1 and earth.
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Q.
Is the check result normal?
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Repair the connector(s), or check and repair of short to earth and open circuit in BAT1 line between engine control relay connector and AS&G-ECU connector.
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- Disconnect connector, and measure at harness side.
- Ignition switch: ON
- Voltage between terminal IGN and earth.
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Q.
Is the check result normal?
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- Do not disconnect connector.
- Ignition switch: ON
- Voltage between terminal IG1 and earth.
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Q.
Is the check result normal?
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NO <Vehicles without OSS> : Go to Step 4.
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NO <Vehicles with OSS> : Go to Step 5.
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- Check ignition switch itself (Refer to GROUP 54A - Ignition Switch - Inspection - Ignition Switch Check ).
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Q.
Is the check result normal?
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Repair the connector(s), or check and repair of short to power supply, short to earth, open circuit and harness damage in IG1 line between ignition switch connector and ETACS-ECU connector.
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Replace the ignition switch.
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Q.
Is the check result normal?
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Perform the troubleshooting of the OSS-ECU (Refer to GROUP 42B - Troubleshooting <OSS-ECU> - Symptom Chart ).
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Repair the connector(s) or wiring harness.
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- Disconnect connectors, and check at ETACS-ECU side.
- Continuity check between terminal IG1 and IGN.
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Q.
Is the check result normal?
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Repair the connector(s), or check and repair of short to earth and open circuit in IG1 line between ETACS-ECU connector and AS&G-ECU connector.
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- Disconnect connector, and measure at harness side.
- Resistance between terminal GND and body earth.
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OK: Continuity (2 Ω or less)
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Q.
Is the check result normal?
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Repair the connector(s), or check and repair of open circuit and harness damage in GND line between AS&G-ECU connector and body earth.
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- Disconnect connectors, and check at ETACS-ECU side.
- Continuity check between terminal IG1 and terminal IGN.
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Q.
Is the check result normal?
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Q.
Is the check result normal?
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Repair the connector(s) or wiring harness.
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Q.
Is the check result normal?
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Repair the connector(s) or wiring harness.
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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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