DESCRIPTION
The electronic throttle control system is composed of the throttle actuator, throttle position sensor, accelerator pedal position sensor, and ECM. The ECM operates the throttle actuator to regulate the throttle valve in response to driver inputs. The throttle position sensor detects the opening angle of the throttle valve, and provides the ECM with feedback so that the throttle valve can be appropriately controlled by the ECM.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2119 | Throttle valve opening angle continues to vary greatly from the target opening angle (1 trip detection logic) |
|
CONFIRMATION DRIVING PATTERN
Connect the intelligent tester to the DLC3.
Turn the power switch on (IG) and turn the tester on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation).
Turn the power switch off and wait for 30 seconds.
Turn the power switch on (IG) and turn the tester on [A].
Put the engine in inspection mode (maintenance mode) Click here.
Start the engine.
Idle the engine for 20 seconds.
Enter the following menus: Powertrain / Engine and ECT / DTC [B].
Read the pending DTCs.
Tech Tips
If a pending DTC is output, the system is malfunctioning.
If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
Input the DTC: P2119.
Check the DTC judgment result.
| Tester Display | Description |
|---|---|
| NORMAL |
|
| ABNORMAL |
|
| INCOMPLETE |
|
| N/A |
|
Tech Tips
If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.
If the judgment result shows INCOMPLETE or N/A, fully depress and release the accelerator pedal 3 times, and the check the DTC judgment result [C].
FAIL-SAFE
When either of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM stops the engine and the vehicle can be driven using solely the hybrid system. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.
Fail-safe mode continues until a pass condition is detected, and the power switch is then turned off.
WIRING DIAGRAM
Refer to DTC P2102 Click here.
INSPECTION PROCEDURE
Tech Tips
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 help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119)
Connect the intelligent tester to the DLC3.
Turn the power switch on (IG).
Turn the tester on.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read the DTCs.
| Result | ||||||
|---|---|---|---|---|---|---|
|
Tech Tips
If any DTCs other than P2119 are output, troubleshoot those DTCs first.
| B |
|
GO TO DTC CHART Click here |
| A |
|
READ VALUE USING INTELLIGENT TESTER (THROTTLE POSITION)
Connect the intelligent tester to the DLC3.
Turn the power switch on (IG).
Turn the tester on.
Clear the DTCs Click here.
Turn the power switch off and wait for at least 30 seconds.
Turn the power switch on (IG).
Turn the tester on.
Put the engine in inspection mode (maintenance mode) Click here.
Start the engine.
Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Throttle Position No. 1 and Throttle Position Command.
Check the values displayed on the tester while fully depressing and releasing the accelerator pedal quickly.
| Result | Proceed to |
|---|---|
| Throttle Position No. 1 does not change | A |
| Throttle Position No. 1 changes even a little | B |
Tech Tips
When a DTC is output, the system changes to fail-safe mode. Therefore, only use the data up until the time the DTC is stored for confirmation.
| B |
|
| A |
|
INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR)
Inspect the throttle with motor body assembly Click here.
| NG |
|
| OK |
|
INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE)
Check for contamination between the throttle valve and the housing. If necessary, clean the throttle with motor body assembly. And check that the throttle valve moves smoothly.
| OK |
|---|
| Throttle valve is not contaminated with foreign objects and moves smoothly. |
| NG |
|
| OK |
|
READ VALUE USING INTELLIGENT TESTER (THROTTLE POSITION)
Connect the intelligent tester to the DLC3.
Turn the power switch on (IG).
Turn the tester on.
Clear the DTCs Click here.
Turn the power switch off and wait for at least 30 seconds.
Turn the power switch on (IG) and turn the tester on.
Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Throttle Position No. 1, Throttle Position No. 2 and Throttle Position Command.
Check the values displayed on the tester while wiggling the ECM wire harness.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Check for DTCs.
| Result | Proceed to |
|---|---|
| Value in Data List changes when wire harness is wiggled, or DTC is output | A |
| Other than above | B |
| B |
|
CHECK WHETHER DTC OUTPUT RECURS (DTC P2119) Click here |
| A |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE WITH MOTOR BODY ASSEMBLY - ECM)
As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector Click here.
| NEXT |
|
END
REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY
Replace the throttle with motor body assembly Click here.
| NEXT |
|
CHECK WHETHER DTC OUTPUT RECURS (DTC P2119)
Connect the intelligent tester to the DLC3.
Turn the power switch on (IG).
Turn the tester on.
Clear the DTCs Click here.
Put the engine in inspection mode Click here.
Allow the engine to idle for 15 seconds or more.
Fully depress and release the accelerator pedal several times quickly.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read the DTCs.
| Result | ||||||
|---|---|---|---|---|---|---|
|
| B |
|
REPLACE ECM Click here |
| A |
|
END