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Yaris Base, 4D Hatchback
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Repair and Diagnosis
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Engine Control System (1NZ-FE)
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SFI System
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DTC P0121 Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem
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Typical Malfunction Thresholds
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Typical Malfunction Thresholds
TYPICAL MALFUNCTION THRESHOLDS
Difference in voltage between VAT1 and VTA2 TP sensor 1 - [TP sensor 2 x 0.8 (corrected by learning value)]
Less than 0.8 V, or more than 1.6 V