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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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 Repair the CAN bus lines (refer to Group 54C - Troubleshooting  ).
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(1)Connect the negative battery terminal.
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Q.
Does the lamp illuminate?
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 Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
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Q.
Does the lamp stay ON?
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Replace SRS-ECU (Refer to ).
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
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)
)
)
)
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