AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Nissan - P1126 Nissan

P1126 Nissan Code - Thermostat Function

- Code Popularity: 57,828 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC P1126 Nissan?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Low engine coolant level
  • Faulty Thermostat
  • Leakage from sealing portion of thermostat
  • Engine coolant temperature sensor
⚠ Does your Nissan have Safety Recalls? → Check here

How to Fix the DTC P1126 Nissan?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

If no coolant leaks are present, replacing the thermostat usually takes care of the problem.

For Nissan vehicles other than the 2000-2001 models see: P1126 Nissan

Search for P1126 Nissan Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1126 Nissan code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

When is the Code Detected?

The P1126 Code is detected when the engine coolant temperature does not reach to specified temperature even though the engine has run long enough.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P1126 Nissan Description

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.

Thermostat Function is for 2000-2001 Nissan models.

OBDII Code P1126 Nissan - Thermostat Function - AutoCodes.com
P1126 Nissan Code - Thermostat Function

Need More Information on the Code?

Need more information on how to fix the P1126 Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1126 Nissan code diagnosed by a professional: Find a repair shop in your area

Code P1126 Nissan comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P1126 Nissan code? Have you replaced any parts?
Any information is appreciated. Thanks