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2019
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RDX Technology, AWD
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Engine Performance
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System
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Engine Control System - DTC Diagnostics (P0300 - P1658)
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DTC Troubleshooting
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DTC P0499
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Overview
DTC P0499: Overview
If the EVAP canister vent shut valve return signal is ON while the PCM outputs an OFF signal, the PCM determines an abnormality and stores the DTC.