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The column switch or the ETACS-ECU may be defective.
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- Defective column switch
- Malfunction of ETACS-ECU
- Malfunctions of the wiring harness and connectors
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Check if an ETACS-related diagnosis code is set.
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Q.
Is the diagnosis code set?
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Troubleshoot the ETACS. Refer to .
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Use the ETACS customisation function to check that "Front wiper operation" is set to "variable
INT" or "vehicle speed dependent".
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Q.
Is the check result normal?
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Use the ETACS customisation function to set "Front wiper operation" to "variable
INT" or "vehicle speed dependent". Refer to .
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Check that the windshield wiper interval changes when the windshield wiper volume control
is rotated.
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Q.
Is the check result normal?
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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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