Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
On-Vehicle Inspection [02/2019 - 08/2020]: Procedure
- INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY
- Before cleaning, or after cleaning the throttle body with motor assembly and installing it to the vehicle, turn the ignition switch to ON without operating the accelerator pedal sensor assembly.NOTE:
If the accelerator pedal sensor assembly has been operated, restart the procedure from the step above.
- Connect the Techstream to the DLC3 and check for DTCs. If DTCs are stored, repair them by following the repair procedure flow. If DTCs are not stored, perform the throttle body operation check.
- Check throttle body operation.
- Enter the following menus:
Powertrain / Engine / Active Test / Control the ETCS Open/Close Slow Speed
- During Active Test operation, check the Data List items "Throttle Position Command" and "Throttle Position Sensor No. 1 Voltage".
Powertrain > Engine > Active Test
Active Test Display Control the ETCS Open/Close Slow Speed Data List Display Throttle Position Sensor No. 1 Voltage Throttle Position Command *a Correct *b Incorrect *c Throttle Position Command *d Throttle Position Sensor No. 1 Voltage *e Specified Condition *f 200 ms OK
Tester Display Condition Specified Condition Throttle Position Command
Throttle Position Sensor No. 1 VoltageChecked during Active Test operation at a voltage of 1.3 V to 2.1 V. Response lag between Throttle Position Command and Throttle Position Sensor No. 1 Voltage is within 200 ms. - Enter the following menus:
Powertrain / Engine / Active Test / Control the ETCS Open/Close Fast Speed
- During Active Test operation, check the Data List items "Throttle Position Command" and "Throttle Position Sensor No. 1 Voltage".
Powertrain > Engine > Active Test
Active Test Display Control the ETCS Open/Close Fast Speed Data List Display Throttle Position Sensor No. 1 Voltage Throttle Position Command *a Correct *b Incorrect *c Throttle Position Command *d Throttle Position Sensor No. 1 Voltage *e Specified Condition *f 200 ms OK
Tester Display Condition Specified Condition Throttle Position Command
Throttle Position Sensor No. 1 VoltageChecked during Active Test operation at a voltage of 1.3 V to 2.1 V. Response lag between Throttle Position Command and Throttle Position Sensor No. 1 Voltage is within 200 ms.
- Enter the following menus:
- If there was any abnormality found during the throttle body operation check, clean the throttle body, then reassemble it and perform the throttle body operation check again. If the operation returns to normal, the procedure is complete. If operation does not return to normal, replace the throttle body with motor assembly.
- Perform "Inspection After Repair" after replacing or cleaning the throttle body with motor assembly.
- w/ Canister Pump Module:
Refer to INITIALIZATION [02/2019 - 10/2019] , or refer to INITIALIZATION [10/2019 - 08/2020]
- w/o Canister Pump Module:
Refer to INITIALIZATION [11/2018 - 08/2020]
- w/ Canister Pump Module:
- Before cleaning, or after cleaning the throttle body with motor assembly and installing it to the vehicle, turn the ignition switch to ON without operating the accelerator pedal sensor assembly.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.