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Use M.U.T.-III to perform the CAN bus diagnosis.
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Q.
Is the check result normal?
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Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting ).
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Check the engine diagnosis code (Refer to GROUP 13C -Troubleshooting <4J1>, 13D -Troubleshooting <4N1>).
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Q.
Is the diagnosis code set?
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Perform the relevant troubleshooting.
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Check if the diagnosis code No. U0100 is set to other ECU.
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Q.
Is the diagnosis code set?
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Replace the engine-ECU (Refer to GROUP 13C - Engine-ECU <4J1>, GROUP 13D - Engine-ECU <4N1>).
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Q.
Is diagnosis code No.U0100 set?
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Replace the ACC/FCM-ECU (Refer to ).
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Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
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