When to set the coolant thermostat code?
This code is set when the PCM notices that the engine has not reached operating temperature within the specified time. In other words the engine is running too cold – or at least the PCM thinks it is.
What is the coolant thermostat code p0128?
Code P0128 is most likely caused by one of the following: What are the symptoms of code P0128? The description for code P0128 is “coolant thermostat (coolant temperature below thermostat regulating temperature).” This code is set when the PCM notices that the engine has not reached operating temperature within the specified time.
What causes a car coolant thermostat to malfunction?
P0128 Possible Causes 1 Leaking or stuck open thermostat 2 Low engine coolant level 3 Insufficient warm up time 4 Faulty engine coolant temperature sensor 5 Engine coolant temperature sensor harness is open or shorted 6 Engine coolant temperature sensor circuit poor electrical connection
What does DTC for coolant thermostat mean?
Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles.
What is the diagnostic code for coolant thermostat?
P0128 is a diagnostic trouble code (DTC) for “Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What does the coolant thermostat code p0128 mean?
All our repairs are backed by our 12-month / 12,000-mile warranty. Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) The P0128 code means that the engine coolant is not getting warm enough, fast enough.
Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles.
What causes coolant level to go below the thermostat?
Common causes include: – Faulty or sticky thermostat. – Thermostat seal is not sealing properly allowing coolant to bypass a closed thermostat. – Faulty engine coolant temperature (ECT) sensor. – Engine computer (PCM) software needs to be updated. – Low coolant level. – Radiator fan does not turn off.