Diagnostic Trouble Codes/DTC Check / Clear.
(e) Start the engine, and fully depress and release the accelerator pedal quickly (to fully open and close the throttle valve).
(f) Enter the following menus: Powertrain / Engine / Trouble Codes.
(g) Read the DTCs.
Result:
B -- REPLACE ECM See: Powertrain Management/Computers and Control Systems/Engine Control Module/Service and
Repair/Removal
A -- CHECK FOR INTERMITTENT PROBLEMS
Up to 08/2009
2GR-FE ENGINE CONTROL: SFI SYSTEM: P2111,P2112: Throttle Actuator Control System - Stuck Open
P2112 - Throttle Actuator Control System - Stuck Closed
DESCRIPTION
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 with motor body 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.
MONITOR DESCRIPTION
The ECM determines that there is a malfunction in the electronic throttle control system when the throttle valve remains at the fixed angle despite a
high drive current from the ECM. The ECM illuminates the MIL and stores a DTC.
If the malfunction is not repaired successfully, a DTC is stored when the accelerator pedal is fully depressed and released quickly (to fully open and
close the throttle valve) after the engine is next started.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
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