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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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Q.
Is diagnosis code No.C1707 stored?
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Replace the 4WD-ECU. (Refer to .) Then go to Step 7.
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Check the ETACS diagnosis code (Refer to GROUP 54A - Troubleshooting ).
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Q.
Is the diagnosis code stored?
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Perform the relevant troubleshooting.
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Check the following coding data which are stored in the ETACS-ECU. (Refer to GROUP 00 - Coding Reference Table ).
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Item
- Handle side
- Transmission
- Engine type
- A.S.C.
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Q.
Is the check result normal?
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Repair the coding data or replace ETACS-ECU. (Refer to GROUP 54A - ETACS .) Then go to Step 7.
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Check the part number of ETACS-ECU.
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Q.
Is the check result normal?
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Replace the ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ), and then go to Step 7.
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Q.
Is diagnosis code No.C1707 stored?
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Replace the 4WD-ECU (Refer to ). Then go to Step 7 .
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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.C1707 stored?
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This diagnosis is complete.
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