P2118 Infiniti Code - Throttle Control Motor Circuit Short Bank 1
Quick Answer
The Throttle Control Motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Common causes include Faulty Electric Throttle Control (ETC) Actuator (Throttle Control Motor), Electric Throttle Control (ETC) Actuator harness is open or shorted, Electric Throttle Control (ETC) Actuator circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2118 Infiniti indicates Throttle Control Motor Circuit Short Bank 1.
- Common causes
- Common causes include Faulty Electric Throttle Control (ETC) Actuator (Throttle Control Motor), Electric Throttle Control (ETC) Actuator harness is open or shorted, Electric Throttle Control (ETC) Actuator circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2118 Infiniti Description
What are the Possible Causes of the DTC P2118 Infiniti?
- Faulty Electric Throttle Control (ETC) Actuator (Throttle Control Motor)
- Electric Throttle Control (ETC) Actuator harness is open or shorted
- Electric Throttle Control (ETC) Actuator circuit poor electrical connection
How to Fix the DTC P2118 Infiniti?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2118 Infiniti code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P2118 Infiniti code?
Need more information on how to fix the P2118 Infiniti code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2118 Infiniti code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2118 Infiniti Code
1. What does the P2118 code mean on an Infiniti?
P2118 indicates a problem with the throttle control motor circuit, specifically a short in Bank 1, which can impact the throttle's ability to open and close properly.
2. What are the common symptoms of a P2118 code?
Symptoms include reduced engine power, poor acceleration, the throttle not responding correctly, and the activation of the vehicle's "limp mode."
3. What causes the P2118 code on an Infiniti?
The most common causes are a faulty throttle control motor, damaged wiring, a blown fuse, a bad throttle body, or a malfunctioning engine control module (ECM).
4. Can I drive my Infiniti with the P2118 code?
Driving with this code is not recommended, as it may cause reduced engine power and unsafe driving conditions. It’s best to address the issue promptly.
5. How do I diagnose the P2118 code on my Infiniti?
Start by inspecting the throttle control motor wiring and connectors for damage or corrosion. Then, test the throttle control motor for proper operation and check the ECM for faults.
6. How do I fix the P2118 code on an Infiniti?
Repairs may include replacing the throttle control motor, repairing damaged wiring, cleaning the throttle body, or reprogramming or replacing the ECM.
7. Can a dirty throttle body cause the P2118 code?
Yes, a dirty or clogged throttle body can restrict movement and trigger the P2118 code. Cleaning the throttle body may resolve the issue.
8. Is the P2118 code covered under warranty?
It depends on your vehicle’s warranty terms. Throttle-related repairs might be covered under the powertrain warranty if the vehicle is still within the warranty period.
9. How much does it cost to repair the P2118 code on an Infiniti?
Repair costs vary but typically range from $200 to $800, depending on whether the throttle body, wiring, or ECM needs repair or replacement.
10. Can a bad ECM cause the P2118 code?
Yes, a malfunctioning ECM can fail to regulate the throttle control motor properly and trigger the P2118 code.
Discuss the causes and fixes for P2118 Infiniti OBDII Code
Code P2118 Infiniti comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
