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ASC-ECU always monitors the inside of ECU while the system is working. If the ECU detects any faults, it sets this diagnosis code.
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This diagnosis code is set when ASC-ECU has malfunction.
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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 - CAN Bus Diagnostics Table ). On completion, go to Step 2.
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Erase the diagnosis code.
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Q.
Is the diagnosis code No.C1607 set?
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Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ). Then go to Step 3.
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/How to Cope with Intermittent Malfunctions ).
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Erase the diagnosis code.
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Q.
Is the diagnosis code No.C1607 set?
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This diagnosis is complete.
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