P011A - OBD II Trouble Code

Our automotive experts have put together the following information about the P011A diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P011A code.

OBD II Fault Code

• OBD II P011A

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.

Decreased engine performance Symptoms

• A/C may not operate
• Decreased engine performance
• Increased fuel consumption

Common Problems That Trigger the P011A Code

• Engine coolant temperature (ECT) sensor failure
• Powertrain Control Module (PCM) failure
• Wiring issue

Common Repairs Needed for the P011A Code

• Thermostat Replacement
• Engine Coolant Temperature Sensor Replacement