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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 362 (Engine Controls Self-Diagnostics) >> Diagnostic Tests >> DTC P0503: Vehicle Speed Sensor Erratic >> Conditions For Setting DTC

Conditions For Setting DTC

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The output shaft speed drops greater than 1500 RPM in 3 seconds.