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have a po721 code need to know what the voltage should be to that sensor

Vehicle: 2008 for focus

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P0721 Output speed sensor circuit / range performance

This depends on what type of sensor you have, If this is a Hall - effect type sensor You lift the rear wheel place in neutral key on engine off rotating the tire it should and fall from 1 volt to 5 volts. If this is not the hall - effect type . the power part is battery voltage

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