System Description
WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
The throttle actuator is operated by the ECM (Included in HV Control ECU), and opens and closes the throttle valve using gears. The opening angle of the throttle valve is detected by the Throttle Position (TP) sensor, which is mounted on the throttle body. The TP sensor provides feedback to the ECM in order that it can control the throttle actuator, and therefore the throttle valve, appropriately in response to driver inputs.
HINT:
This ETCS (Electronic Throttle Control System) does not use a throttle cable.
DIAGNOSTIC TROUBLE CODE CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2111 | ECM (Included in HV Control ECU) signals throttle actuator to close, but stuck (1 trip detection logic) |
|
| P2112 | ECM signals throttle actuator to open, but stuck (1 trip detection logic) |
|