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Home >> Saturn >> 2002 >> SC1 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0500: Vehicle Speed Sensor (VSS) Circuit >> Diagnostic Aids
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Diagnostic Aids

NOTE: On A/T models, DTC P0500 will set when P0721 or P0722 sets.

If problem is intermittent, wiggle wires while monitoring OSS signal on scan tool and watch for signal to jump or go away. If no OSS signal is received, speedometer will be inoperative. If PCM does not receive an OSS signal, it will calculate an OSS signal value based on RPM and TP angle.

OSS resistance should be between 800-1600 ohms.

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