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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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Use M.U.T.-III to check the diagnosis code for the ABS system (Refer to ).
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Q.
Is the check result normal?
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Carry out the diagnosis for the diagnosis code chart (Refer to ).
Then go to Step 7.
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Q.
Is the check result normal?
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Carry out the diagnosis of ABS-ECU power supply circuit system (Refer to ).
Then go to Step 7.
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Check that the brake tube is correctly mounted to the hydraulic unit [(integrated
with ABS-ECU) Refer to ].
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Q.
Is the check result normal?
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Connect the brake tube correctly. Then go to Step 7.
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Q.
Does the ABS work 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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Check the brake system related components except ABS. Then go to Step 6.
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Q.
Does the ABS work normally?
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This diagnosis is complete.
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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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