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- Confirm whether the diagnosis codes are set in KOS&OSS-ECU <Vehicles with KOS> or ETACS-ECU <Vehicles without KOS>.
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Q.
Is the diagnosis code set?
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Perform the troubleshooting of KOS-system (Refer to GROUP 42B - Troubleshooting - Diagnosis Code Chart <Vehicles with KOS>) or the troubleshooting of KOS-system (Refer to GROUP 54A - Immobilizer System - Troubleshooting - Diagnosis Code Chart <Vehicles without KOS>).
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- Reconfirmation of diagnosis code.
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Q.
Is the diagnosis code set?
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Replace the KOS&OSS-ECU. After the replacement, put the each identification code into KOS&OSS-ECU (Refer to GROUP 42B - On-vehicle Service - ID Codes Registration Procedures <Vehicles with KOS>). Or replace the ETACS-ECU. After the replacement, put the each identification code into ETACS-ECU (Refer to GROUP 54A - Immobilizer System - On-vehicle Service - ID Codes Registration Procedures <Vehicles without KOS>). Then go to Step 3.
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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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- Reconfirmation of diagnosis code.
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Q.
Is the diagnosis code set?
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