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- Using M.U.T.-III, perform CAN bus line diagnosis.
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Q.
Is the check result normal?
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Correct CAN bus line (Refer to GROUP 54C - Troubleshooting - Can Bus Diagnostics Table ), and then go to Step 3.
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- Reconfirm whether the diagnosis codes are set in the engine-ECU.
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- Erase the diagnosis codes being set.
- Ignition switch: "LOCK" (OFF) to ON
- Confirm whether the diagnosis codes are set.
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Q.
Are the diagnosis codes set?
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YES : Replace the engine-ECU.
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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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- Reconfirm whether the diagnosis codes are set in the engine-ECU.
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- Erase the diagnosis codes being set.
- Ignition switch: "LOCK" (OFF) to ON
- Confirm whether the diagnosis codes are set.
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Q.
Are the diagnosis codes set?
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