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Buick
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2003
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Regal 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 P0502: Vehicle Speed Sensor Circuit - Low Output
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Conditions For Setting DTC
Conditions For Setting DTC
DTC sets when output shaft speed is less than 150 RPM for 2.5 seconds.