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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Manual Transaxle - F40) >> Diagnostic Information and Procedures >> DTC P0502 or P0503: Vehicle Speed Sensor >> Conditions for Setting the DTC

Conditions for Setting the DTC

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P0502 

Transmission output shaft speed is less than 60 RPM for 4.5s.

P0503 

Transmission output shaft speed drops 350 RPM in less than 3s.