CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2111 or P2112)
INSPECT THROTTLE BODY (VISUALLY CHECK THROTTLE VALVE)
CHECK WHETHER DTC OUTPUT RECURS (DTC P2111 OR P2112)
DTC P2111 Throttle Actuator Control System - Stuck Open |
DTC P2112 Throttle Actuator Control System - Stuck Closed |
SYSTEM DESCRIPTION
The throttle actuator is operated by the ECM, and opens and closes the throttle valve using the 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. 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 ETCS (Electronic Throttle Control System) does not use a throttle cable.
| DTC No. | DTC Detection Condition | Trouble Area |
| P2111 | ECM signals throttle actuator to close, but actuator is stuck open (1 trip detection logic) |
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| P2112 | ECM signals throttle actuator to open, but actuator is stuck closed (1 trip detection logic) |
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FAIL-SAFE
When either of these DTCs, as well as other DTCs relating to ETCS (Electronic Throttle Control System) malfunctions, is set, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator off, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue running at a minimal speed. If the accelerator pedal is depressed gently, the vehicle can be driven slowly.Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off.
WIRING DIAGRAM
Refer to DTC P2102 (Link).INSPECTION PROCEDURE
- HINT:
- Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction (CAMRY_ACV40 RM000000PDS01FX.html).
| 1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2111 or P2112) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to the ON position.
Turn the tester on.
Enter the following menus: Powertrain / Engine / DTC.
Read the DTCs.
- Result:
Display (DTC Output) Proceed to P2111 or P2112 A P2111 or P2112 and other DTCs B
- HINT:
- If any DTCs other than P2111 or P2112 are output, troubleshoot those DTCs first.
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| A | |
| 2.INSPECT THROTTLE BODY (VISUALLY CHECK THROTTLE VALVE) |
Check for contamination between the throttle valve and the housing. If necessary, clean the throttle body. And check that the throttle valve moves smoothly.
- OK:
- Throttle valve is not contaminated with foreign objects and moves smoothly.
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| OK | |
| 3.CHECK WHETHER DTC OUTPUT RECURS (DTC P2111 OR P2112) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to the ON position.
Turn the tester on.
Clear the DTCs (CAMRY_ACV40 RM000000PDK080X.html).
Start the engine, and fully depress and release the accelerator pedal quickly (to fully open and close the throttle valve).
Enter the following menus: Powertrain / Engine / DTC.
Read the DTCs.
- Result:
Display (DTC Output) Proceed to No DTC A P2111 or P2112 B
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| A | ||
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