AutoCodes – Nissan – P0128 2007 Nissan Maxima

P0128 2007 Nissan Maxima Code - Thermostat Function

Quick Answer

The thermostat is a component that blocks the flow of coolant to the radiator until the engine has warmed up. 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 2007 Nissan Maxima indicates Thermostat Function.
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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 7,245

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 Apr 21, 2019

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0128 2007 Nissan Maxima Description

The thermostat is a component that blocks the flow of coolant to the radiator until the engine has warmed up. When the engine is cold, no coolant flows through the engine. Once the engine reaches its operating temperature, the thermostat opens. The OBDII sets when the engine coolant temperature has not risen enough to open the thermostat even though the engine has run long enough. This is due to a leak in the seal or the thermostat open stuck.

OBDII Code P0128 2007 Nissan Maxima - Thermostat Function - AutoCodes.com — P0128 2007 Nissan Maxima Code - Thermostat Function

What does this mean?

What are the Possible Causes of the DTC P0128 2007 Nissan Maxima?

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 2007 Nissan Maxima?

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 2007 Nissan Maxima 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 2007 Nissan Maxima code?

Need more information on how to fix the P0128 2007 Nissan Maxima code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0128 2007 Nissan Maxima code diagnosed by a professional: Find a repair shop in your area

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 2007 Nissan Maxima Code

1. What does OBDII code P0128 on a 2007 Nissan Maxima indicate?

- OBDII code P0128 on a 2007 Nissan Maxima indicates a problem with the thermostat function.

2. What are the common symptoms of a P0128 code on a 2007 Nissan Maxima?

- Common symptoms of a P0128 code may include the engine running cooler than normal, decreased fuel efficiency, and possibly the check engine light coming on.

3. What are the possible causes of a P0128 code on a 2007 Nissan Maxima?

- Possible causes of a P0128 code include a faulty thermostat, a malfunctioning engine coolant temperature sensor, low coolant levels, or issues with the cooling system.

4. How can I diagnose a P0128 code on my 2007 Nissan Maxima?

- Diagnosing a P0128 code typically involves checking the coolant level, inspecting the thermostat and temperature sensor, and testing the overall functionality of the cooling system.

5. What is the role of the thermostat in a 2007 Nissan Maxima?

- The thermostat in a 2007 Nissan Maxima regulates the engine temperature by controlling the flow of coolant through the engine and radiator.

6. Can I continue driving my 2007 Nissan Maxima with a P0128 code?

- It is not recommended to drive your 2007 Nissan Maxima with a P0128 code for an extended period, as it can lead to potential engine damage and decreased performance.

7. How can I repair a P0128 code on my 2007 Nissan Maxima?

- Repairing a P0128 code may involve replacing the thermostat, engine coolant temperature sensor, or addressing any issues with the cooling system like leaks or blockages.

8. Are there any DIY tips for fixing a P0128 code on a 2007 Nissan Maxima?

- DIY tips for fixing a P0128 code include checking and topping up coolant levels, inspecting the thermostat for proper operation, and ensuring there are no visible leaks in the cooling system.

9. What should I do if the P0128 code persists after repairs on my 2007 Nissan Maxima?

- If the P0128 code persists after repairs, it is recommended to have a professional mechanic perform a thorough diagnosis to identify any underlying issues causing the code to reappear.

10. How often should the thermostat be replaced in a 2007 Nissan Maxima?

- The thermostat in a 2007 Nissan Maxima should be replaced as part of regular maintenance or if symptoms of a failing thermostat, like overheating or poor heat output, are observed.