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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 199 (ENGINE CONTROLS SELF-DIAGNOSTICS)DIAGNOSTIC TESTSDTC P0502: VEHICLE SPEED SENSOR LOW OUTPUTDESCRIPTION
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F

DTC P0502: Vehicle Speed Sensor Low Output: Description

2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Description
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 Vehicle Speed Sensor (VSS) system is a pulse generator consisting of a speed sensor assembly, located in the case extension, and a toothed vehicle speed sensor reluctor wheel, which is pressed onto the final drive carrier assembly. As the vehicle drives forward, the vehicle speed sensor reluctor wheel rotates. This rotation produces a variable AC signal in the pick-up coil that is proportional to vehicle speed. The PCM uses this signal to calculate vehicle speed, shift timing and gear ratios. If the PCM detects a low vehicle speed with a high engine speed while in a drive range, then DTC P0502 sets.

RENDER: 1.0x

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