Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the heater in a sensor that checks the air coming out of your car's engine. It's like if a thermometer in your oven wasn't working right because its heater was too hot.
The P24B6 code indicates that the heater circuit in the particulate matter sensor is receiving too much voltage, which can affect the sensor's ability to accurately measure particulate levels.
The particulate matter sensor is equipped with a heater to ensure accurate readings by preventing condensation and other environmental factors from affecting the sensor. The P24B6 code is triggered when the powertrain control module (PCM) detects a voltage level in the heater control circuit that is higher than the expected range. This can be due to a short circuit, faulty wiring, or a malfunctioning sensor.
• Check Engine Light is on
• Decreased fuel efficiency
• Possible increase in emissions
• Faulty particulate matter sensor
• Short circuit in the heater control circuit
• Damaged wiring or connectors
Particulate Matter Sensor: A device that measures the amount of particulate matter in the exhaust gases.
Heater Control Circuit: An electrical circuit that powers the heater within a sensor to ensure accurate readings.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the particulate matter sensor and heater circuit for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the particulate matter sensor if faulty.
• Clear the code and test drive the vehicle to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-250
• Chevrolet Silverado
• Ram 1500
• Regular maintenance and inspection of the vehicle's exhaust system.
• Ensure proper function of the vehicle's sensors.
• Avoid driving in conditions that may damage the exhaust system.
Sensor Issue
• Address the issue promptly to avoid increased emissions.
• Consult a professional mechanic for accurate diagnosis and repair.
Check with the vehicle manufacturer for possible 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, addressing the issue promptly is important to maintain emissions compliance and fuel efficiency.
Driving with a malfunctioning emissions system may lead to failing emissions tests and possible fines in regions with strict emissions regulations.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The particulate matter sensor is typically located in the exhaust system, near the diesel particulate filter.
Q: Can I drive my car with a P24B6 code?
A: It's possible to drive, but it's recommended to fix the issue soon to avoid emissions problems and potential engine damage.
Q: How do I clear a P24B6 code?
A: After repairing the issue, you can clear the code with an OBD-II scanner, but it may return if the problem is not fully resolved.
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