The P2118: Throttle Actuator Control Motor Current Range/Performance refers to a problem with the throttle actuator control motor, where its current is either outside of the expected range or its performance is affected. This could be caused by a faulty throttle actuator motor, issues with the control module, or wiring problems.
P2118 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P2118: Throttle Actuator Control Motor Current Range/Performance |
| Is it serious? | Yes, it can cause throttle control issues and affect drivability. |
| Possible causes | – Issues with throttle actuator control motor current range or performance – Faulty throttle actuator control motor – Problems with the control module or wiring |
| How to diagnose? | – Test the current range and performance of the throttle actuator control motor – Inspect the control module functionality – Check wiring and connections |
P2118 Meaning
The P2118 code indicates that there is a problem with the throttle actuator control motor’s current or performance. This motor controls the opening and closing of the throttle valve, and if it isn’t working properly, the vehicle’s throttle response can become sluggish or unresponsive. The issue could stem from a malfunctioning motor, a problem with the control module, or issues in the wiring that connects these components.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to see if any other related codes are present that could provide more insight into the problem. | OBD-II Scanner |
| Inspect Throttle Actuator Motor Wiring | Visually inspect the wiring connected to the throttle actuator control motor for any signs of damage, loose connections, or corrosion. | Flashlight, Multimeter |
| Test Throttle Actuator Motor Current | Use a multimeter or diagnostic tool to measure the current range and performance of the throttle actuator control motor and compare it to the manufacturer’s specifications. | Multimeter, Diagnostic Tool |
| Inspect Control Module | Check the throttle actuator control module for any signs of malfunction, including internal faults or failure to send proper signals to the motor. | Diagnostic Tool |
| Check Wiring and Connections | Ensure all wiring and connections between the control module and the throttle actuator motor are intact, and repair or replace any damaged components. | Flashlight, Multimeter |
| Clear the Code and Test Drive | After making necessary repairs or adjustments, clear the code with an OBD-II scanner and take the vehicle for a test drive to confirm the issue has been resolved. | OBD-II Scanner |
| Recheck for Codes | After the test drive, re-scan the vehicle to ensure the P2118 code has not returned. | OBD-II Scanner |
Free PDF: How to choose OBD2 scanner
I’ve made you a free PDF to choose the OBD2 scanner in 5 minutes.
✅ Which OBD2 scanner is best?
✅ Which type should you get (DIY, Pro, Hobby)
✅ What is the best scanner for the exact brand/feature (e.g best for BMW)
✅ How to get a Bi-Directional tool for as cheap as $40
✅ Discount coupons for scanners
PDF is 100% free and it is designed to help you pick a scanner in less than a few minutes! Not a boring 50-page guide.
Just tell me where to send it.
Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)