Engine-CodesToyota – P0791 2007 Toyota Camry

P0791 2007 Toyota Camry Code - Intermediate Shaft Speed Sensor 'A' Circuit

Quick Answer

The P0791 code for a 2007 Toyota Camry refers to an issue with the Intermediate Shaft Speed Sensor 'A' Circuit. Common causes include Faulty intermediate shaft speed sensor, Damaged or corroded wiring/connectors in the sensor circuit, Issues with the ECU. 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
P0791 2007 Toyota Camry indicates Intermediate Shaft Speed Sensor 'A' Circuit.
Common causes
Common causes include Faulty intermediate shaft speed sensor, Damaged or corroded wiring/connectors in the sensor circuit, Issues with the ECU.
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.
Table of contents Created and updated by William Orellana on Sep 26, 2024
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Code P0791 2007 Toyota Camry Description

The P0791 code for a 2007 Toyota Camry refers to an issue with the Intermediate Shaft Speed Sensor 'A' Circuit. This sensor is responsible for monitoring the speed of the intermediate shaft in the transmission. The data collected by this sensor is crucial for the proper functioning of the transmission system, as it helps the vehicle's computer control unit (ECU) to determine the optimal shifting strategy for the transmission.

OBDII Code P0791 2007 Toyota Camry - Intermediate Shaft Speed Sensor 'A' Circuit
P0791 2007 Toyota Camry Code - Intermediate Shaft Speed Sensor 'A' Circuit

Common Causes of P0791 2007 Toyota Camry

  1. Faulty intermediate shaft speed sensor
  2. Damaged or corroded wiring/connectors in the sensor circuit
  3. Issues with the ECU
  4. Transmission fluid contamination or low fluid levels
  5. Mechanical issues with the transmission itself

Symptoms of P0791 2007 Toyota Camry

  1. Rough or delayed gear shifts
  2. Transmission slipping
  3. Illumination of the Check Engine Light
  4. Decreased fuel efficiency
  5. Harsh shifting or jerking movements

How to Fix P0791 2007 Toyota Camry

  1. Diagnose the issue by using a scan tool to retrieve the trouble code and inspecting the intermediate shaft speed sensor and its circuit for any visible damage.
  2. Test the sensor's resistance and voltage output to determine if it is functioning correctly.
  3. Replace the intermediate shaft speed sensor if it is found to be faulty.
  4. Repair or replace any damaged wiring or connectors in the sensor circuit.
  5. Clear the trouble code from the ECU's memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0791 2007 Toyota Camry

The typical repair costs for addressing the P0791 code on a 2007 Toyota Camry can vary depending on the specific cause of the issue. In general, the cost of replacing the intermediate shaft speed sensor and addressing any related wiring or connector issues can range from $200 to $500, including parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

When is the Code Detected?

P0791 code is detected when the input speed sensor voltage is more than 1.9V or less than 0.1V for 2 seconds or more

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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 P0791 2007 Toyota Camry Code

1. What does OBDII code P0791 on a 2007 Toyota Camry indicate?

The code P0791 indicates a problem with the Intermediate Shaft Speed Sensor 'A' Circuit.

2. What are the common symptoms of OBDII code P0791 on a 2007 Toyota Camry?

Common symptoms include issues with shifting gears, harsh shifting, transmission slipping, and a decrease in fuel efficiency.

3. What are the possible causes of OBDII code P0791 on a 2007 Toyota Camry?

Possible causes include a faulty intermediate shaft speed sensor, damaged sensor wiring or connectors, low transmission fluid levels, or internal transmission issues.

4. How can I diagnose the cause of OBDII code P0791 on a 2007 Toyota Camry?

Diagnosing the issue may involve using a scan tool to check for the code, inspecting the sensor and its wiring for damage, checking transmission fluid levels, and conducting a road test to observe shifting behavior.

5. Can I continue driving my 2007 Toyota Camry with OBDII code P0791?

It is not recommended to continue driving with this code as it can lead to further transmission damage and potentially unsafe driving conditions.

6. How can I repair OBDII code P0791 on a 2007 Toyota Camry?

Repairing the issue may involve replacing the intermediate shaft speed sensor, repairing or replacing damaged wiring or connectors, ensuring proper transmission fluid levels, or addressing any internal transmission problems.

7. Is it possible to reset OBDII code P0791 on a 2007 Toyota Camry without fixing the underlying issue?

Resetting the code without addressing the underlying problem may temporarily turn off the check engine light, but the issue will likely reoccur until properly repaired.

8. Can a DIY enthusiast fix OBDII code P0791 on a 2007 Toyota Camry?

While some may attempt to diagnose and repair this code themselves, it is recommended to seek assistance from a professional mechanic due to the complexity of transmission systems.

9. How much does it typically cost to repair OBDII code P0791 on a 2007 Toyota Camry?

The cost of repairs can vary depending on the specific issue, but it may range from $200 to $500 or more, including parts and labor.

10. How can I prevent OBDII code P0791 from occurring on my 2007 Toyota Camry?

Regular maintenance, such as checking and changing transmission fluid as recommended, can help prevent issues that may trigger this code.

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