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Honda
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2017
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Ridgeline RTL, AWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System - Advanced Diagnostics (P0521 - P1683)
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Advanced Diagnostics
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DTC P1659
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Malfunction Threshold
Malfunction Threshold
The voltage is not applied from the ETCS control relay circuit for at least 200 milliseconds.