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When M.U.T.-III cannot communicate with the ABS/TCL/ASC system, the
CAN bus line, ASC-ECU power supply circuit system, or ASC-ECU may be faulty.
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- Damaged wiring harness and connectors
- ASC-ECU malfunction
- Wrong routing of M.U.T.-III harness
- Abnormality in battery or alternator
- Abnormality in power supply voltage to ASC-ECU
- ECU malfunction of other system
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Use M.U.T.-III to diagnose the CAN bus lines.
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Q.
Is the check result normal?
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Check and repair the power supply circuit system (Refer to GROUP 16 - Charging
System ).
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Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnosis table ).
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