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Chevrolet
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2005
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Venture Base, Van Passenger Extended
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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 - 3.4L DTC P0016 To P0138
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DTC Tests
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DTC P0030
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Conditions for Setting the DTC
Conditions for Setting the DTC
The PCM detects that the HO2S 1 heater control circuit status is incorrect for more than 2 seconds.
This diagnostic runs continuously.