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When M.U.T.-III cannot communicate with the ABS/ASC system, the CAN bus lines,
ASC-ECU power supply circuit system, earth, 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 the power supply circuit, and repair if necessary (Refer to ).
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Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ).
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