LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2004 >> Avalon XLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Diagnostics >> DTC P0120: Throttle/Pedal position Sensor/Switch "A" Circuit >> Monitor Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Monitor Description

The ECM uses the throttle position sensor to monitor the throttle valve opening angle.

VTA have a specific voltage operating range.

If VTA is out of the normal operating range, the ECM interprets this as a fault and will set a DTC.