Guide To P0116 OBD Error Code Solutions

<<See All OBD Codes

The OBD fault code P0116 can be defined as an engine coolant temperature circuit range/performance problem. This trouble code can set when the powertrain control module sees irrational out of specification voltage signals from the coolant temperature circuit.

The rise and fall of the engine coolant temperature is measure with the help of engine coolant temperature sensor. The critical data which is needed for the powertrain control module is provided by it to control the air fuel ratio, the ignition spark timing, cooling fans and various components of the emissions control systems. The engine coolant temperature makes sure to convert the coolant temperature into a voltage that is high when the engine is cold and low when the engine starts to warm up.

What causes this problem with the Engine Coolant Temperature Circuit Range/Performance?

There can be low level of engine coolant

There can be some faults in the Engine Coolant Temperature sensor

Defects in the engine coolant thermostat

Engine Coolant Temperature (ECT) sensor harness may be opened or shorted

There can be poor electrical connection in the engine coolant temperature sensor circuit 

1. Engine Coolant Temperature Sensor - Common cause behind this P0116 error code can be some fault in Engine Coolant Temperature Sensor. So, it will be a good decision to replace them now.
2. Engine Wiring Connectors - Timing Chain is perfectly fine but still but having that trouble code P0116 flashing? In such a situation your Wiring might be faulty. Why don’t you think of getting that replaced?
3. Powertrain Control Module - P0116 code does not really end up spoiling your timing belt, but it might also accompany few powertrain control module issues. We have best powertrain related parts with us.
4. Engine Control Module - Faulty Engine Control Module can be the reason why P0116 code is flashing. Visit us to purchase top notch Engine Control Module online.
5. Air Fuel Ratio - A faulty Air Fuel Ratio can be a reason behind the flashing up of P0116 code. We are here to solve your issue.
6. Fuel System - OBD Code P0116 can appear because of faulty Fuel System. Buy new fuel system parts from us.
7. Thermostat - Everything is fine with turbocharger/supercharger and still P0116 code triggering? Then you must get your Thermostat checked.

It is vital to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P0116 here:

Common Symptoms

• The engine control module would start turning on the check engine light on and goes into failsafe mode, substituting input to 176 deg F
• A hard start can be faced by the engine when it is cold, and would start normally when it becomes warm
• The engine may start running roughly and hesitate until it warms up properly
• Engine should run close to normal once it warms up

• You should always test and replace the thermostat

Parts Avatar Canada has in stock the best replacement parts and performance parts for your vehicle. We have parts for all make and model be it Mazda, BMW, Audi, etc.; and from best brands like Bosch, Denso, Remy and more. Visit us now! 

• The electrical connector, wiring, or sensor issues should be visually inspected
• The other step is to scan and document the codes received and view the freeze frame data to see when the code was actually set
• If you want to verify any faults present, then you must rest the engine or can even try to duplicate the fault with a wiggle test
• Simultaneously set codes P0115, P0117, P0118, or P0125 with DTC P0116. The ECT sensor may have an open or short circuit. You must diagnose these codes initially
• The thermostat should be removed and tested to open at the specified temperature

Common Mistakes When Diagnosing The P0116 Code

• The most common mistake can be not performing a visual inspection
• The other thing to be kept in mind is to follow the tests for codes P0115, P0117, P0118, or P0125 first if codes were received with P0116
• The thermostat should be replaced with correct temperature rating
• Try to connect it to view the ECM data and seeing if the temperature output from the sensor is as expected before installation