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Chevrolet
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2003
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Impala LS
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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 Self-Diagnostics - 3.8L
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Diagnostic Tests
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DTC P0412: Secondary Air Injection Solenoid Control Circuit
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Conditions For Running DTC
Conditions For Running DTC
Ignition voltage is 9-18 volts.
Engine speed more than 80 RPM.
PCM driver transitions from on to off or off to on.