• Check Engine Light illuminated
• Poor fuel economy
• Increased emissions
• Faulty exhaust gas temperature sensor
• Wiring issues such as shorts or open circuits
• Faulty PCM
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• P247A
• P247B
Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 5
This code means that one of the car's sensors, which measures how hot the exhaust gases are, is not working properly. It's like a thermometer for the car's exhaust, and it's not giving the right readings.
The exhaust gas temperature sensor measures the temperature of the exhaust gases to help control emissions and protect the engine. A 'circuit low' code indicates that the sensor is reporting a temperature that is lower than expected.
The P2481 code is triggered when the Powertrain Control Module (PCM) detects a low voltage signal from the exhaust gas temperature sensor located on Bank 1 Sensor 5. This sensor is used to monitor the temperature of the exhaust gases to ensure optimal performance and emissions control.
• Perform a visual inspection of the exhaust gas temperature sensor and wiring.
• Use a multimeter to check the sensor's voltage and resistance.
• Scan the vehicle with an OBD-II scanner to confirm the code and check for related codes.
• Replace the faulty exhaust gas temperature sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Tacoma
• Regularly inspect and maintain the exhaust system.
• Ensure wiring and connectors are secure and free from corrosion.
• Use high-quality fuel to prevent sensor contamination.
Sensor Issue
• Do not ignore the Check Engine Light.
• Get the vehicle diagnosed by a professional if unsure.
• Regular maintenance can prevent sensor issues.
Check with the vehicle manufacturer for specific warranty coverage on emissions-related components.
Exhaust gas temperature sensor issues have been a common cause of emissions-related codes as vehicles have become more emissions-conscious.
Moderate – While the vehicle may still be drivable, it can lead to increased emissions and potential engine damage over time.
Driving with a malfunctioning exhaust sensor can lead to increased emissions, which may not comply with local emissions laws.
• Engine at operating temperature
• Vehicle in a safe location for testing
The exhaust gas temperature sensor is typically located in the exhaust manifold or downpipe on the engine's bank 1 side.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to increased emissions and potential damage to the catalytic converter.
Q: Can I drive my car with this code?
A: While the car may still be drivable, it's advisable to fix the issue to avoid long-term damage.
