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Home >> Toyota >> 2013 >> Matrix Base, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Control System (2AZ-FE) (Diagnostic Codes (P0500-P2610) & Circuit Tests)) >> SFI System >> DTC P2121: Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance >> Typical Enabling Conditions
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Typical Enabling Conditions

WARNING: This page is about a different variant/trim than selected.
ALL (CASE 1 AND CASE 2)

Monitor runs whenever following DTCs not stored None
Either of following conditions met: 1 or 2
1. Ignition switch ON
2. Throttle actuator power ON
Accelerator pedal position sensor circuit fail (P2120, P2122, P2123, P2125, P2127, P2128, P2138) Not detected
CASE 2

VPA2 voltage Less than 4.84 V
Either of following conditions met: a or b
a) VPA voltage - Learned VPA accelerator off position voltage 0.04 V or higher
b) VPA2 voltage - Learned VPA2 accelerator off position voltage 0.04 V or higher