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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 satisfactory?
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Repair the CAN bus lines (Refer to GROUP 54C, Diagnosis - Can Bus Diagnostics
Table ). After diagnosing the CAN bus lines, go to Step
2.
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Check that the ETACS-ECU does not set the diagnosis code.
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Q.
Is the diagnosis code set?
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Diagnose ETACS-ECU (Refer to GROUP 54A, Diagnosis - diagnosis code chart ).
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When the ignition switch is turned to the "LOCK" (OFF) position, check that the CAN adapter
does not set the diagnosis code.
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Q.
Is the diagnosis code set?
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Refer to diagnosis code chart .
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Q.
Is a malfunction eliminated?
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If no malfunctions are found in all steps, an intermittent malfunction is suspected.
Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How
to Cope with Intermittent Malfunction .
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