P24B6 Chevrolet Code - Particulate Matter Sensor Heater Control Circuit High Voltage
Quick Answer
The Particulate Matter (PM) sensor monitors the amount of particulates (soot) in the diesel exhaust gas exiting the tailpipe. Common causes include Faulty Exhaust Particulate Matter Sensor, Exhaust Particulate Matter Sensor harness is open or shorted, Exhaust Particulate Matter Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P24B6 Chevrolet indicates Particulate Matter Sensor Heater Control Circuit High Voltage.
- Common causes
- Common causes include Faulty Exhaust Particulate Matter Sensor, Exhaust Particulate Matter Sensor harness is open or shorted, Exhaust Particulate Matter Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P24B6 Chevrolet Description
The operation of the PM Sensor is based on the electrical conductivity characteristic of the diesel particulate. As the exhaust gas flows over the sensing element, soot is absorbed in the combs between the electrodes, eventually creating a conductive path. When the path is formed, it generates a current based on the voltage being applied to the element. The measurement process continues until a preset current value is reached. To avoid misleading readings, the sensor performs a regeneration where the soot is cleaned off by heating up the element before the measurement phase begins. The amount of regenerations is based on vehicle strategy; when the calibrated number of regenerations is reached, the cumulative current readings are used to determine the amount of soot concentration in the exhaust gas which in turn determines the collection efficiency of the Diesel Particulate Filter (DPF). The Diagnostic Trouble Code (DTC) will be set when the particular matter sensor control unit detects an internal fault of the sensor, fault of the sensor circuitry, or low voltage on the sensor supply circuit.
What are the Possible Causes of the DTC P24B6 Chevrolet?
- Faulty Exhaust Particulate Matter Sensor
- Exhaust Particulate Matter Sensor harness is open or shorted
- Exhaust Particulate Matter Sensor circuit poor electrical connection
How to Fix the DTC P24B6 Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P24B6 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P24B6 Chevrolet Code
1. What does OBDII code P24B6 for Chevrolet mean?
The code P24B6 indicates a problem with the Particulate Matter Sensor Heater Control Circuit having high voltage in a Chevrolet vehicle.
2. What are common symptoms of OBDII code P24B6 in a Chevrolet?
Common symptoms of code P24B6 may include the illumination of the check engine light, reduced fuel efficiency, and potential issues with the vehicle's emissions system.
3. What are possible causes of OBDII code P24B6 in a Chevrolet?
Potential causes of code P24B6 include a faulty particulate matter sensor, a malfunctioning heater control circuit, wiring issues, or a problem with the engine control module.
4. How can I diagnose OBDII code P24B6 in my Chevrolet?
Diagnosing code P24B6 usually involves using an OBDII scanner to retrieve the code, inspecting the particulate matter sensor and its wiring, checking the heater control circuit, and testing the sensor's functionality.
5. Can I continue driving my Chevrolet with OBDII code P24B6?
It is not recommended to continue driving your Chevrolet with an active P24B6 code, as it can lead to potential emissions system issues and reduced engine performance.
6. How do I repair OBDII code P24B6 in a Chevrolet?
Repairing code P24B6 typically involves replacing the faulty particulate matter sensor, repairing any damaged wiring, or addressing issues with the heater control circuit as diagnosed during the troubleshooting process.
7. Is it possible to reset OBDII code P24B6 in a Chevrolet without fixing the underlying issue?
While you can clear the code temporarily, it will likely reappear if the root cause of the problem, such as a faulty sensor or wiring issue, is not addressed.
8. How much does it cost to fix OBDII code P24B6 in a Chevrolet?
The cost of fixing code P24B6 can vary depending on the exact cause of the issue, but it may involve parts and labor expenses for sensor replacement, wiring repairs, or other necessary repairs.
9. Can a DIY enthusiast repair OBDII code P24B6 in a Chevrolet?
DIY enthusiasts with automotive repair experience may be able to address code P24B6 by following diagnostic procedures and making the necessary repairs, such as sensor replacement or wiring fixes.
10. How often does OBDII code P24B6 occur in Chevrolet vehicles?
OBDII code P24B6 for the Particulate Matter Sensor Heater Control Circuit High Voltage is relatively uncommon but can occur in Chevrolet vehicles equipped with this type of sensor and related components.
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