Engine-Codes - Infiniti - P1126 INFINITI

P1126 INFINITI - Thermostat Function

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1126 INFINITI Possible Causes

  • Low engine coolant level
  • Faulty Thermostat
  • Leakage from sealing portion of thermostat
  • Engine coolant temperature sensor

How is the P1126 INFINITI code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

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

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

What is the cost to diagnose the P1126 INFINITI code

Labor: 1.0

The cost to diagnose the P1126 INFINITI code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops 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.

Possible Symptoms

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

P1126 INFINITI Meaning

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 Infiniti models.

More Information

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