Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the sensor that measures the temperature of the exhaust particles. It's like when your thermometer at home isn't working right and shows the wrong temperature.
The P24C8 code is triggered when the engine control module (ECM) detects a low voltage signal from the particulate matter (PM) sensor's temperature circuit.
The particulate matter sensor is part of the emissions control system and is responsible for monitoring the amount of soot or particles in the exhaust gases. The temperature circuit within this sensor helps ensure accurate readings by compensating for temperature variations. A low circuit signal indicates a potential issue with the sensor, wiring, or connections.
• Check Engine Light is on
• Possible decrease in fuel efficiency
• Potential increase in exhaust emissions
• Faulty particulate matter sensor
• Wiring issues such as shorts or opens in the circuit
• Poor electrical connections at the sensor
Particulate Matter Sensor: A device that measures the amount of soot or particles in the vehicle's exhaust.
ECM: Engine Control Module, the computer that manages the engine's functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the particulate matter sensor.
• Test the sensor's resistance and voltage output.
• Repair or replace damaged wiring or connectors.
• Replace the particulate matter sensor if faulty.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools (screwdrivers, pliers)
$150 - $400
Moderate
• Ford F-250
• Chevrolet Silverado
• Ram 1500
• Regular maintenance of the exhaust system
• Timely replacement of faulty sensors
• Ensure proper electrical connections
Sensor Issue
• Have the vehicle inspected by a professional if the Check Engine Light is on.
• Avoid ignoring the warning signs to prevent further damage.
Check with your vehicle manufacturer for specific warranty coverage on emissions-related components.
This code has become more common with the increased use of particulate matter sensors in modern vehicles to meet stricter emissions standards.
Moderate – While the vehicle may still be drivable, it's important to address the issue to maintain emissions compliance and efficiency.
Driving with a malfunctioning emissions system may violate local emissions laws and contribute to pollution.
• Engine at operating temperature
• Vehicle stationary and in park
The particulate matter sensor is typically located in the exhaust system, near the diesel particulate filter.
Q: Can I drive my car with a P24C8 code?
A: While you may be able to drive, it's best to address the issue to avoid potential emissions problems and maintain vehicle efficiency.
Q: How do I know if my particulate matter sensor is bad?
A: Symptoms include a Check Engine Light, poor fuel efficiency, and increased emissions. A diagnostic scan can confirm the issue.
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