AutoCodes – Toyota – P0128 2010 Toyota Camry

P0128 2010 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 2010 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 6,533

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 2010 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 2010 Toyota Camry - Coolant Thermostat - AutoCodes.com — P0128 2010 Toyota Camry Code - Coolant Thermostat

What does this mean?

What are the Possible Causes of the DTC P0128 2010 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 2010 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 2010 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 2010 Toyota Camry code?

Need more information on how to fix the P0128 2010 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 2010 Toyota Camry Code

1. What does OBDII code P0128 mean for my 2010 Toyota Camry?

- OBDII code P0128 in a 2010 Toyota Camry indicates a problem with the coolant thermostat, specifically that the engine is taking too long to reach operating temperature.

2. What are the common symptoms of a P0128 code in a 2010 Toyota Camry?

- Common symptoms of a P0128 code in a 2010 Toyota Camry include a lower than normal engine temperature gauge reading, poor fuel economy, and potentially a check engine light on the dashboard.

3. What are the possible causes of a P0128 code in a 2010 Toyota Camry?

- The most common causes of a P0128 code in a 2010 Toyota Camry are a faulty thermostat, a malfunctioning coolant temperature sensor, low coolant levels, or a problem with the cooling system.

4. How can I diagnose a P0128 code in my 2010 Toyota Camry?

- To diagnose a P0128 code in a 2010 Toyota Camry, you can start by checking the coolant level, inspecting the thermostat for proper operation, and testing the coolant temperature sensor using a multimeter.

5. Can I continue driving my 2010 Toyota Camry with a P0128 code?

- It is not recommended to continue driving your 2010 Toyota Camry with a P0128 code, as it can lead to poor engine performance, reduced fuel efficiency, and potential long-term damage to the engine.

6. How can I repair a P0128 code in my 2010 Toyota Camry?

- Repairing a P0128 code in a 2010 Toyota Camry typically involves replacing the thermostat, checking and topping up the coolant levels, and ensuring proper operation of the cooling system components.

7. Are there any DIY tips for fixing a P0128 code in a 2010 Toyota Camry?

- While some aspects of diagnosing and repairing a P0128 code may be DIY-friendly, it is recommended to consult a professional mechanic to ensure proper diagnosis and repair of the underlying issue.

8. How much does it cost to fix a P0128 code in a 2010 Toyota Camry?

- The cost of fixing a P0128 code in a 2010 Toyota Camry can vary depending on the root cause of the issue, but it typically involves a few hundred dollars for parts and labor at a reputable repair shop.

9. Will resetting the check engine light make the P0128 code go away in my 2010 Toyota Camry?

- Resetting the check engine light may temporarily clear the P0128 code in a 2010 Toyota Camry, but if the underlying issue is not addressed, the code is likely to reappear once the problem persists.

10. Can a P0128 code in a 2010 Toyota Camry cause any long-term damage if left unresolved?

- If left unresolved, a P0128 code in a 2010 Toyota Camry can potentially lead to decreased engine efficiency, increased wear and tear on engine components, and in extreme cases, engine overheating or damage.