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Engine Control System DTC Diagnostics (P0335 - P0523)
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DTC Troubleshooting
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DTC Troubleshooting: P0498 (3.5L Engine)
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Overview
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DTC Troubleshooting: P0498 (3.5L Engine): Overview
If the EVAP canister vent shut valve return signal is OFF while the PCM outputs an ON signal, the PCM determines an abnormality and stores the DTC.