Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is getting a signal that the air going into the engine is too hot on one side of the engine. This is like when your room thermometer says it's hotter than it actually is.
The charge air cooler temperature sensor measures the temperature of the air after it has been cooled by the intercooler. A 'circuit high' code means the sensor is sending a higher than expected voltage signal to the engine control module (ECM).
The P00A3 code indicates that the Engine Control Module (ECM) has detected a high voltage signal from the charge air cooler temperature sensor on bank 2. This sensor is responsible for monitoring the temperature of the air after it has passed through the intercooler, which is crucial for maintaining optimal engine performance and efficiency.
• Check Engine Light is on
• Poor engine performance
• Increased fuel consumption
• Faulty charge air cooler temperature sensor
• Wiring issues such as a short circuit
• Connector problems or corrosion
Charge Air Cooler: A device used to cool air compressed by a turbocharger or supercharger.
Bank 2: The side of the engine opposite bank 1, which contains cylinder 1.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the charge air cooler temperature sensor with a multimeter.
• Replace the charge air cooler temperature sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect and maintain sensors and wiring.
• Keep the intercooler clean and free of debris.
• Ensure proper engine cooling system maintenance.
Sensor Issue
• Do not ignore the Check Engine Light.
• Regularly service your vehicle to prevent sensor issues.
Sensor-related issues may be covered under the vehicle's emissions warranty.
This code is often seen in vehicles with turbocharged engines where the intercooler plays a critical role in engine performance.
Moderate – While the vehicle may still be drivable, it is important to address this issue to avoid potential engine damage.
Driving with an unresolved P00A3 code may lead to increased emissions and could be illegal in some areas.
• Engine at normal operating temperature
• Vehicle in a safe environment for testing
The charge air cooler temperature sensor is typically located near the intercooler on the intake piping of bank 2.
Q: Can I drive with a P00A3 code?
A: While you can drive with this code, it's best to fix it soon to avoid engine performance issues.
Q: How can I prevent this code from occurring?
A: Regular maintenance of the intercooler and checking the sensor wiring can help prevent this code.
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