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The steering wheel sensor outputs the steering wheel status to ASC-ECU via the CAN bus
lines.
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This diagnosis code is set when ASC-ECU has detected the communication error in the steering
wheel sensor.
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- Steering wheel sensor malfunction
- ASC-ECU malfunction
- External noise interference
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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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Replace the steering wheel sensor (Refer to ).
Then go to Step 2.
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Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ).
On completion, go to Step 3.
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Erase the diagnosis code.
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Q.
Is diagnosis code No.U0428 set?
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Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ).
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This diagnosis is complete.
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Erase the diagnosis code.
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Q.
Is diagnosis code No.U0428 set?
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This diagnosis is complete.
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