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Using M.U.T.-III, perform CAN bus diagnosis (Refer to GROUP 54C - Explanation
About The M.U.T-III Can Bus Diagnostics ).
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Q.
Is the check result satisfactory?
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Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting, Can Bus
Diagnostic Table ). Then go to Step 6.
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Using M.U.T.-III, perform transmission system diagnosis code (Refer to GROUP 23A - Troubleshooting,
Diagnosis Function <CVT>, GROUP 23C - Troubleshooting,
Diagnosis Function <A/T>).
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Q.
Is any diagnosis code stored?
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Repair the transmission system (Refer to GROUP 23A - Troubleshooting,
Inspection Chart for Diagnosis Code <CVT>, GROUP 23C - Troubleshooting,
Inspection Chart for Diagnosis Code <A/T>). Then go
to Step 6.
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Using M.U.T.-III, perform MPI system diagnosis code (Refer to GROUP 13A - Troubleshooting,
Diagnosis Function <4B1>, GROUP 13B - Troubleshooting,
Diagnosis Function <6B3>).
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Q.
Is any diagnosis code stored?
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Repair the MPI system (Refer to GROUP 13A - Troubleshooting, Inspection
Chart for Diagnosis Code <4B1>, GROUP 13B - Troubleshooting, Inspection
Chart for Diagnosis Code <6B3>). Then go to Step 6
.
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Using M.U.T.-III, check the data list (Refer to data list reference table ).
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- Item 04: Vehicle speed signal
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Q.
Is the check result normal?
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Replace the engine-ECU (Refer to GROUP 13A - Engine-ECU <4B1>,
GROUP 13B - Engine-ECU <6B3>). Then go to
Step 6.
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Replace the engine-ECU (Refer to GROUP 13A - Engine-ECU <4B1>,
GROUP 13B - Engine-ECU <6B3>). Then go to
Step 6 .
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It can be assumed that this malfunction is intermittent (Refer to GROUP 00 - How
to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunction ).
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The procedure is complete.
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