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Chevrolet
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2001
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Prizm Base, Standard
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Repair and Diagnosis
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Engine Performance
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Engine Controls Self-Diagnostics - 1.8L
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Diagnostic Tests
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DTC P0120: Throttle Position Sensor Circuit
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Code Enable Criteria
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Code Enable Criteria
DTC will set when:
Ignition is on.
TP sensor input to PCM is less than 0.1 volt with throttle valve is in closed position.
TP sensor input to PCM is greater than 4.9 volts with throttle valve in WOT position.