AutoCodes – Toyota – P0128 2011 Toyota Camry

P0128 2011 Toyota Camry Code - Coolant Thermostat

Quick Answer

Coolant temperature below thermostat regulating temperature. Common causes include Leaking or stuck open thermostat, Low engine coolant level, Insufficient warm up time. 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: P0128 2011 Toyota Camry indicates Coolant Thermostat.
Common causes: Common causes include Leaking or stuck open thermostat, Low engine coolant level, Insufficient warm up time.
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 6,544

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
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0128 2011 Toyota Camry Description

Coolant temperature below thermostat regulating temperature. Indicates that the thermostat monitor has not achieved the required engine operating temperature within a specified amount of time after starting the engine.

OBDII Code P0128 2011 Toyota Camry - Coolant Thermostat - AutoCodes.com — P0128 2011 Toyota Camry Code - Coolant Thermostat

What does this mean?

What are the Possible Causes of the DTC P0128 2011 Toyota Camry?

Leaking or stuck open thermostat
Low engine coolant level
Insufficient warm up time
Faulty engine coolant temperature sensor
Engine coolant temperature sensor harness is open or shorted
Engine coolant temperature sensor circuit poor electrical connection

How to Fix the DTC P0128 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.

What does this mean?

Code Tech Notes

If cooling system is not leaking and the fluid level is OK, replacing the thermostat usually takes care of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0128 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 P0128 2011 Toyota Camry code?

Need more information on how to fix the P0128 2011 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 P0128 2011 Toyota Camry Code

1. What does OBDII code P0128 indicate in a 2011 Toyota Camry?

Code P0128 in a 2011 Toyota Camry typically indicates a problem with the coolant thermostat.

2. What are the common symptoms of a P0128 code in a 2011 Toyota Camry?

Common symptoms of a P0128 code include the engine running colder than normal, poor fuel economy, and the Check Engine light illuminating.

3. What are the possible causes of a P0128 code in a 2011 Toyota Camry?

Possible causes of a P0128 code include a faulty thermostat, low coolant level, a malfunctioning cooling fan, or a problem with the coolant temperature sensor.

4. How serious is a P0128 code in a 2011 Toyota Camry?

While a P0128 code may not cause immediate harm to the vehicle, it should be addressed promptly to prevent potential overheating issues that could lead to more severe engine damage.

5. Can I still drive my 2011 Toyota Camry with a P0128 code?

It is generally not recommended to drive your Toyota Camry with a P0128 code for an extended period as it can affect engine performance and efficiency.

6. How can I diagnose a P0128 code in my 2011 Toyota Camry?

Diagnosing a P0128 code typically involves checking the coolant level, inspecting the thermostat, testing the coolant temperature sensor, and ensuring proper operation of the cooling fan.

7. What is the typical repair for a P0128 code in a 2011 Toyota Camry?

The most common repair for a P0128 code involves replacing the coolant thermostat and ensuring the cooling system is functioning properly.

8. Can I reset the Check Engine light after fixing a P0128 code in my 2011 Toyota Camry?

Yes, after fixing the issue causing the P0128 code, you can reset the Check Engine light using an OBDII scanner to clear the trouble code.

9. How much does it cost to repair a P0128 code in a 2011 Toyota Camry?

The cost of repairing a P0128 code in a 2011 Toyota Camry can vary depending on the exact cause of the issue, but it typically ranges from $150 to $400 for parts and labor.

10. How can I prevent a P0128 code from recurring in my 2011 Toyota Camry?

To prevent a P0128 code from recurring, it's essential to perform regular maintenance on your vehicle, including checking and replacing the coolant as needed, monitoring the cooling system for any issues, and addressing any overheating problems promptly.