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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 .). Then go to Step 7.
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Use M.U.T.-III to check the diagnosis code for the ABS system.
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Q.
Is the diagnosis code set?
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Carry out the diagnosis for the diagnosis code (Refer to ).
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Perform the following actuator test by the combination meter system, and check if the ABS warning lamp illuminates (Refer to GROUP 54A - Combination Meter/Actuator Test Table ).
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Q.
Is the check result normal?
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Diagnose the combination meter (Refer to GROUP 54A - Combination Meter/Trouble Symptom Chart ). Then go to Step 7.
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Perform the variant coding to the ETACS-ECU.
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Q.
Is the check result normal?
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Replace the ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ), and then go to Step 7.
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Use M.U.T.-III to check that other diagnosis code is set in the combination meter system.
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Q.
Is the diagnosis code set?
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Diagnose the combination meter (Refer to GROUP 54A - Troubleshooting ). Then go to Step 7.
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Q.
Does the ABS warning lamp turn ON and OFF normally?
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/How to Cope with Intermittent Malfunction ).
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Replace the hydraulic unit [(integrated with ABS-ECU) Refer to ]. Then go to Step 7.
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Q.
Does the ABS warning lamp turn ON and OFF normally?
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This diagnosis is complete.
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