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.
DTC P2108 (2017 2018 2019 2020 2021)
DTC P2108 : Throttle Actuator Control Module Performance
NOTE:
- Before you troubleshoot, review the general troubleshooting information .
- If DTC P2108 is indicated alone, do the troubleshooting for DTC P1658 and P1659 using the on-board snapshot data for P2108.
- If any of the DTCs listed below are indicated at the same time as DTC P2108, troubleshoot those DTCs first, then recheck for P2108.
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- -
P1658, P1659: Throttle Actuator Control
- -
| DTC Description | Confirmed DTC | Pending DTC |
|---|---|---|
| P2108 Throttle Actuator Control Module Performance |
DTC (PGM-FI)
- DTC check
-1. Press the engine start/stop button to select the ON mode.
-2. Check for Pending or Confirmed DTCs with the HDS.
DTC Description Confirmed DTC Pending DTC P1658 ETCS Control Relay ON Malfunction P1659 ETCS Control Relay OFF Malfunction P2108 Throttle Actuator Control Module Performance Are DTC P1658 or P1659 and P2108 indicated at the same time?
YES
Go to the indicated DTC's troubleshooting.
NO
NO RELATED
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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.