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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 ). Then go to Step 4.
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Check the ABS diagnosis code (Refer to GROUP 35B - Troubleshooting ) <Vehicles with ABS> or the ASC diagnosis code (Refer to GROUP 35C - Troubleshooting ) <Vehicles with ASC>.
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Q.
Is the diagnosis code stored?
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Perform the relevant troubleshooting.
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Q.
Is diagnosis code No.U0121 stored?
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Replace the 4WD-ECU (Refer to ). Then go to Step 4.
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Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
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Q.
Is diagnosis code No.U0121 stored?
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This diagnosis is complete.
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