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Tekniker
Sep 82 min read

P0126 Error-fault code LOW COOLANT TEMPERATURE FOR STATIONARY OPERATION

What is the error-fault code P0126?


The P0126 Error-fault code is a defined by the OBD-II (On-Board Diagnostics II) system and is related to the engine cooling system. This fault code is an indication that the engine operating temperature is not rising sufficiently or that the engine is staying cold. Here is more information about the P0126 fault code:


P0126

Meaning of Fault/error code P0126:


P0126 Error/Fault Code: Insufficient Process Temperature for Engine Cooling System


Causes and Symptoms of the P0126 Error/Fault Code:


Fault/error code P0126 may be caused by:

  1. Thermostat is faulty.

  2. Coolant is low.

  3. Cooling system leaks.

  4. ECT (Engine Temperature Sensor) faulty.



P0126 Fault/error code Symptoms may include:


  1. The "Check Engine" or "Service Engine Soon" light is on.

  2. The engine remains cold for longer than normal.

  3. Decreased fuel efficiency.


How to Identify P0126 Fault/error code:


The P0126 fault/error code can be read by the on-board computer system using an OBD-II scanner or code reader.

The scanner or reader connects to the vehicle's OBD-II port and reads the error code.



Mistakes Made When Correcting P0126 Fault/error code:


Errors when correcting the P0126 fault/error code may include:

  1. It just resets the error code and does not fix the cause of the problem.

  2. Failure to perform inadequate cooling system maintenance and repairs.


P0126 Error/Fault Code Severity:


P0126 Trouble/error code can affect the proper operation and fuel efficiency of the engine. It can also cause premature engine wear or damage.



P0126 Fault/error code What can be done to solve it?


  • To deal with the fault/error code P0126, the following can be done:

    1. Replacing the thermostat.

    2. Add or replace coolant if missing.

    3. Repairing cooling system leaks.

    4. Replace the ECT (Engine Temperature Sensor) if faulty.



Things to Consider for Fault/error code P0126:


  • P0126 Fault/error code is related to the engine cooling system and it is important to resolve it early. Cold engines are more harmful in terms of fuel efficiency and exhaust emissions. It is recommended to consult an automobile mechanic to resolve the problem.

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