AutoCodes – Toyota – P2118 2004 Toyota Prius

P2118 2004 Toyota Prius Code - Throttle Actuator Control Motor Current Range/Performance

Quick Answer

The Electronic Throttle Control System (ETCS) has a dedicated power supply circuit. Common causes include ETCS fuse, Faulty Throttle Actuator Control Actuator, Electronic Throttle Control System (ETCS) harness is open or shorted. 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 2004 Toyota Prius indicates Throttle Actuator Control Motor Current Range/Performance.
Common causes: Common causes include ETCS fuse, Faulty Throttle Actuator Control Actuator, Electronic Throttle Control System (ETCS) harness is open or shorted.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 5,630

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2118 2004 Toyota Prius Description

The Electronic Throttle Control System (ETCS) has a dedicated power supply circuit. The voltage (+BM) is monitored and when the voltage is low (less than 4 V), the Engine Control Module (ECM) concludes that the ETCS has a fault and current to the throttle actuator is cut. When the voltage becomes unstable, the ETCS itself becomes unstable. For this reason, when the voltage is low, the current to the actuator is cut. If repairs are made and the system has returned to normal, turn the ignition switch OFF. The ECM then allows current to flow to the actuator and actuator can be restarted.

OBDII Code P2118 2004 Toyota Prius - Throttle Actuator Control Motor Current Range/Performance - AutoCodes.com — P2118 2004 Toyota Prius Code - Throttle Actuator Control Motor Current Range/Performance

What does this mean?

What are the Possible Causes of the DTC P2118 2004 Toyota Prius?

ETCS fuse
Faulty Throttle Actuator Control Actuator
Electronic Throttle Control System (ETCS) harness is open or shorted
Electronic Throttle Control System (ETCS) circuit poor electrical connection

How to Fix the DTC P2118 2004 Toyota Prius?

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 2004 Toyota Prius 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 2004 Toyota Prius code?

Need more information on how to fix the P2118 2004 Toyota Prius code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2118 2004 Toyota Prius code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2118 2004 Toyota Prius Code

1. What are the common symptoms of OBDII code P2118 in a 2004 Toyota Prius?

- Common symptoms include reduced engine power, acceleration issues, and the vehicle going into limp mode.

2. What does the OBDII code P2118 in a 2004 Toyota Prius indicate?

- The code P2118 indicates an issue with the Throttle Actuator Control Motor Current Range/Performance.

3. What are the possible causes of OBDII code P2118 in a 2004 Toyota Prius?

- Possible causes include a faulty throttle actuator control motor, wiring issues, or a problem with the throttle body.

4. How can I diagnose the OBDII code P2118 in my 2004 Toyota Prius?

- Diagnosis typically involves checking the throttle actuator control motor, inspecting the wiring for any damage, and testing the throttle body for proper functionality.

5. Can I continue driving my 2004 Toyota Prius with the OBDII code P2118 present?

- It is not recommended to continue driving with code P2118 present, as it can lead to further damage and unsafe driving conditions.

6. How can I repair OBDII code P2118 in my 2004 Toyota Prius?

- The repair may involve replacing the throttle actuator control motor, repairing any damaged wiring, or cleaning the throttle body.

7. Will resetting the OBDII code P2118 in my 2004 Toyota Prius make it go away permanently?

- Simply resetting the code may temporarily clear it, but if the underlying issue is not addressed, the code is likely to reappear.

8. Is it safe to attempt DIY repairs for OBDII code P2118 in a 2004 Toyota Prius?

- If you have the necessary tools and expertise, you can attempt DIY repairs. However, it is recommended to consult a professional mechanic for accurate diagnosis and repair.

9. How much does it cost to fix OBDII code P2118 in a 2004 Toyota Prius at a repair shop?

- The cost of repairs can vary depending on the extent of the issue and labor rates, but it can range from a few hundred to over a thousand dollars.

10. Can a regular vehicle owner without technical knowledge troubleshoot OBDII code P2118 in a 2004 Toyota Prius?

- While basic troubleshooting steps like checking for loose connections can be done, a deeper diagnosis and repair are best left to experienced mechanics or technicians.