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OBDII Code List

P1126 2001 NISSAN ALTIMA - Thermostat Function

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3 What does this mean?

Possible causes

  • Low engine coolant level
  • Faulty Thermostat
  • Leakage from sealing portion of thermostat
  • Engine coolant temperature sensor
What does this mean?

Tech notes

If no coolant leaks are present, replacing the thermostat usually takes care of the problem.
What does this mean?

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 2001 NISSAN ALTIMA 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.
OBDII Code P1126 2001 Nissan Altima - Thermostat Function -

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P1126 2001 NISSAN ALTIMA Comments

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Any information is appreciated. Thanks
Repair Importance Level: 3
1=Low 2=Medium 3=High
Repair Difficulty Level: 2
1=Easy 2=Moderate 3=Hard

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