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P011A Severity
Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.
Proper diagnosis will save you time and money on unnecessary repairs.
Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.
The Engine Coolant Temperature Sensor measures the temperature of the coolant going through the engine. The engine control module (PCM) uses this information to determine how much fuel to use to keep the engine running properly. It also uses this information to protect the engine from overheating. When the PCM detects a problem with this sensor or the circuit for the sensor, it will set code P011A.
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OBD-II Code Decreased engine performance is defined as a Engine Coolant Temperature Sensor 1/2 Correlation
The Engine Coolant Temperature Sensor measures the temperature of the coolant going through the engine. The engine control module (PCM) uses this information to determine how much fuel to use to keep the engine running properly. It also uses this information to protect the engine from overheating. When the PCM detects a problem with this sensor or the circuit for the sensor, it will set code P011A.