AutoCodes – Toyota – P0878 2009 Toyota Camry

P0878 2009 Toyota Camry Code - Transmission Fluid Pressure Sensor/Switch 'D' Circuit High

Quick Answer

The Engine Control Module (ECM) monitors the Transmission Fluid Pressure Sensor/Switch 'D'. Common causes include Faulty Automatic Transmission Fluid (ATF) Temperature Sensor Assembly, ATF Temperature Sensor harness is open or shorted, ATF Temperature Sensor 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: P0878 2009 Toyota Camry indicates Transmission Fluid Pressure Sensor/Switch 'D' Circuit High.
Common causes: Common causes include Faulty Automatic Transmission Fluid (ATF) Temperature Sensor Assembly, ATF Temperature Sensor harness is open or shorted, ATF Temperature Sensor 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 2,382

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0878 2009 Toyota Camry Description

The Engine Control Module (ECM) monitors the Transmission Fluid Pressure Sensor/Switch 'D'. The ECM sets the OBDII when the Transmission Fluid Pressure Sensor/Switch 'D' is not to factory specifications.

OBDII Code P0878 2009 Toyota Camry - Transmission Fluid Pressure Sensor/Switch 'D' Circuit High - AutoCodes.com — P0878 2009 Toyota Camry Code - Transmission Fluid Pressure Sensor/Switch 'D' Circuit High

What does this mean?

What are the Possible Causes of the DTC P0878 2009 Toyota Camry?

Faulty Automatic Transmission Fluid (ATF) Temperature Sensor Assembly
ATF Temperature Sensor harness is open or shorted
ATF Temperature Sensor circuit poor electrical connection
Faulty Transmission Control Module (TCM)

How to Fix the DTC P0878 2009 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0878 2009 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 P0878 2009 Toyota Camry code?

Need more information on how to fix the P0878 2009 Toyota Camry code? Get Access to Factory Service Manuals

Need Help with the 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 P0878 2009 Toyota Camry Code

1. What does the OBDII code P0878 mean in a 2009 Toyota Camry?

The P0878 code indicates a high voltage issue in the Transmission Fluid Pressure Sensor/Switch 'D' circuit, which monitors hydraulic pressure in the transmission.

2. What are the symptoms of the P0878 code in a 2009 Toyota Camry?

Symptoms may include erratic shifting, transmission slipping, the vehicle going into limp mode, or the check engine light illuminating.

3. What causes the P0878 code in a 2009 Toyota Camry?

Common causes include a faulty transmission fluid pressure sensor, damaged wiring or connectors in the circuit, low or contaminated transmission fluid, or an issue with the PCM (Powertrain Control Module).

4. Can low transmission fluid cause the P0878 code in a 2009 Toyota Camry?

Yes, low or contaminated transmission fluid can affect hydraulic pressure and trigger the P0878 code.

5. How is the P0878 code diagnosed in a 2009 Toyota Camry?

A technician will inspect the wiring and connectors, check the transmission fluid level and condition, test the transmission fluid pressure sensor, and use a scan tool to monitor live data from the sensor.

6. Can I drive my 2009 Toyota Camry with the P0878 code?

Driving with the P0878 code is not recommended, as it can lead to further transmission damage or unsafe driving conditions.

7. How do you fix the P0878 code in a 2009 Toyota Camry?

Repairs may include replacing the transmission fluid pressure sensor, repairing or replacing damaged wiring, cleaning or replacing the transmission fluid, or reprogramming/updating the PCM.

8. How much does it cost to repair the P0878 code in a 2009 Toyota Camry?

Repair costs can range from $100 to $400, depending on whether the issue is with the sensor, wiring, or transmission fluid. PCM repairs or updates may cost more.

9. Can a faulty PCM cause the P0878 code in a 2009 Toyota Camry?

Yes, a malfunctioning PCM can misinterpret or fail to process the sensor data, leading to the P0878 code.

10. How can I prevent the P0878 code from occurring in my 2009 Toyota Camry?

Regularly check and maintain transmission fluid levels, inspect wiring and connectors for damage, and address transmission issues promptly to prevent related codes.