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Home >> Dodge and Ram >> 2011 >> Nitro Shock, RWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0221 To P0581 >> Diagnosis And Testing >> P0501-Vehicle Speed Sensor 1 Performance >> Possible Causes

Possible Causes

Possible Causes 
ACTIVE BUS OR COMMUNICATION DTCS
TIRE CIRCUMFERENCE
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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