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Use the M.U.T.-III to diagnose the CAN bus lines.
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Q.
Is the check result normal?
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Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
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Check if the diagnosis code is set in the transfer-ECU (Refer to GROUP 23A - Diagnosis Code Chart ).
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Q.
Is the diagnosis code set?
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Troubleshoot the transfer-ECU diagnosis code. Then go to Step 4.
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Check whether an transfer-ECU "time-out" related diagnosis code is set in other ECUs.
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Q.
Is the diagnosis code set?
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Replace the transfer-ECU (Refer to GROUP 23A - Transfer-ECU ). Then go to Step 4.
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Check again if the diagnosis code is set in the FCM-ECU.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
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Q.
Is diagnosis code No. U0114 set?
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Replace the FCM-ECU (Refer to ).
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Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunctions ).
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