AutoCodesToyota – P0657 2011 Toyota Camry

P0657 2011 Toyota Camry Code - Actuator Supply Voltage Circuit Open

Quick Answer

The Engine Control Module (ECM) continuously monitors its internal memory status, internal circuits, and output signals to the throttle actuator. Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine Control Module 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
P0657 2011 Toyota Camry indicates Actuator Supply Voltage Circuit Open.
Common causes
Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine Control Module 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.
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Code Popularity 1,772
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 25, 2019
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Code P0657 2011 Toyota Camry Description

The Engine Control Module (ECM) continuously monitors its internal memory status, internal circuits, and output signals to the throttle actuator. This self−check insures that the ECM is functioning properly. If any malfunction is detected, the ECM will set the code and illuminate the engine light.
The ECM memory status is diagnosed by internal mirroring of the main CPU and the sub CPU to detect Random Access Memory (RAM) errors. The two CPUs also perform continuous mutual monitoring. The ECM illuminates the MIL and sets a DTC if: 1) outputs from the two CPUs are different or deviate from the standards, 2) the signals sent to the throttle actuator deviate from the standards, 3) a malfunction is found in the throttle actuator supply voltage, and 4) any other ECM malfunction is found.
OBDII Code P0657 2011 Toyota Camry - Actuator Supply Voltage Circuit Open - AutoCodes.com
P0657 2011 Toyota Camry Code - Actuator Supply Voltage Circuit Open

What are the Possible Causes of the DTC P0657 2011 Toyota Camry?

  • Faulty Engine Control Module (ECM)
  • Engine Control Module harness is open or shorted
  • Engine Control Module circuit poor electrical connection
  • Engine Control Module Programming update

How to Fix the DTC P0657 2011 Toyota Camry?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0657 2011 Toyota Camry 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 P0657 2011 Toyota Camry code?

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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 P0657 2011 Toyota Camry Code

1. What does OBDII code P0657 on a 2011 Toyota Camry mean?

The P0657 code indicates a problem with the actuator supply voltage circuit being open.

2. What are the common symptoms of a P0657 code in a 2011 Toyota Camry?

Common symptoms include the Check Engine light being illuminated, poor engine performance, and potential stalling of the vehicle.

3. What are the possible causes of the P0657 code in a 2011 Toyota Camry?

Possible causes include a faulty actuator, damaged wiring or connectors in the actuator circuit, a blown fuse, or issues with the ECM.

4. How can I diagnose the P0657 code in my 2011 Toyota Camry?

Diagnosis typically involves using a scan tool to read the code, inspecting the actuator and its wiring for any visible damage, and testing the voltage in the circuit.

5. Can I still drive my 2011 Toyota Camry with a P0657 code?

It is not recommended to drive the vehicle with a P0657 code as it can lead to further damage and potential safety hazards.

6. How can I repair a P0657 code in my 2011 Toyota Camry?

Repairing the P0657 code may involve replacing the faulty actuator, repairing damaged wiring or connectors, replacing blown fuses, or addressing any ECM issues.

7. Is it possible to clear the P0657 code in my 2011 Toyota Camry with a simple reset?

While clearing the code with a reset may temporarily turn off the Check Engine light, it will not fix the underlying issue causing the P0657 code.

8. How much does it typically cost to repair a P0657 code in a 2011 Toyota Camry?

The cost of repairing a P0657 code can vary depending on the specific cause of the issue, but it may range from a few hundred dollars to over a thousand dollars.

9. Can a DIY enthusiast fix a P0657 code in a 2011 Toyota Camry?

Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair a P0657 code, but it is recommended to seek professional help for accurate diagnosis and repair.

10. Will a P0657 code cause my 2011 Toyota Camry to fail an emissions test?

Yes, a P0657 code can cause your 2011 Toyota Camry to fail an emissions test due to the impact on engine performance and emissions control systems.

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