DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High [12/2015 - 08/2016]: Description

WARNING: This page is about a different car, the 2016 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.

The throttle actuator is operated by the ECM and opens and closes the throttle valve using gears.

The opening angle of the throttle valve is detected by the throttle position sensor, which is mounted on the throttle body with motor assembly. The throttle position sensor provides feedback to the ECM. This feedback allows the ECM to appropriately control the throttle actuator and monitor the throttle opening angle as the ECM responds to driver inputs.

HINT:

This electronic throttle control system does not use a throttle cable.

DTC No.	DTC Detection Condition	Trouble Area
P2102	Both of the following conditions continue for 2 seconds (1 trip detection logic): (a) Throttle actuator duty ratio is 80% or more (b) Throttle actuator current is below 0.5 A	Open in throttle actuator circuit Throttle actuator ECM
P2103	Either condition is met (1 trip detection logic): Motor driver IC high current inhibit signal on Motor driver IC high current limiter monitor input fails	Short in throttle actuator circuit Throttle actuator Throttle valve Throttle body with motor assembly ECM