P246D GMC Code - Diesel Particulate Filter Pressure Sensor 'A'/'B' Correlation
Quick Answer
The Powertrain Control Module (PCM) monitors the rationality of the Diesel Particulate Filter (DPF) pressure sensor during idle and part load operating conditions. Common causes include Faulty Diesel Particulate Filter Pressure Sensor, Diesel Particulate Filter Pressure Sensor harness is open or shorted, Diesel Particulate Filter Pressure Sensor circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P246D GMC indicates Diesel Particulate Filter Pressure Sensor 'A'/'B' Correlation.
- Common causes
- Common causes include Faulty Diesel Particulate Filter Pressure Sensor, Diesel Particulate Filter Pressure Sensor harness is open or shorted, Diesel Particulate Filter Pressure Sensor circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P246D GMC Description
What are the Possible Causes of the DTC P246D GMC?
- Faulty Diesel Particulate Filter Pressure Sensor
- Diesel Particulate Filter Pressure Sensor harness is open or shorted
- Diesel Particulate Filter Pressure Sensor circuit poor electrical connection
How to Fix the DTC P246D GMC?
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 P246D GMC 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 P246D GMC Code
1. What are common symptoms of OBDII code P246D in a GMC vehicle?
- Common symptoms include reduced engine performance, increased fuel consumption, black smoke from the exhaust, and the illumination of the check engine light.
2. What does the OBDII code P246D GMC indicate?
- The code P246D indicates a Diesel Particulate Filter Pressure Sensor 'A'/'B' Correlation issue in the vehicle's diesel engine.
3. What are the possible causes of OBDII code P246D in a GMC?
- Possible causes of code P246D include a faulty diesel particulate filter pressure sensor, wiring issues, exhaust system leaks, or a malfunctioning engine control module.
4. How can I diagnose the Diesel Particulate Filter Pressure Sensor 'A'/'B' Correlation issue in my GMC vehicle?
- Diagnosis involves conducting a thorough inspection of the diesel particulate filter pressure sensor, checking for any wiring faults, and performing a diesel particulate filter regeneration process.
5. Can OBDII code P246D be fixed without professional help?
- While some simple fixes like checking for loose connections can be done by the owner, diagnosing and repairing the root cause of the code may require professional assistance due to the complexity of diesel engine systems.
6. What are the potential risks of ignoring OBDII code P246D in a GMC vehicle?
- Ignoring code P246D can lead to further damage to the diesel particulate filter, reduced engine efficiency, and potential engine performance issues in the long run.
7. Is it safe to continue driving my GMC with OBDII code P246D present?
- It is not recommended to continue driving the vehicle with the code present, as it can lead to more severe engine problems and may result in higher repair costs.
8. How can I prevent OBDII code P246D from appearing in my GMC diesel vehicle?
- Regular maintenance, such as timely diesel particulate filter regeneration, checking for exhaust leaks, and addressing any sensor issues promptly, can help prevent the occurrence of code P246D.
9. Are there any DIY repair tips for resolving OBDII code P246D in a GMC?
- DIY repair tips may include checking and cleaning sensor connections, inspecting the diesel particulate filter for blockages, and ensuring proper exhaust system integrity.
10. How much does it typically cost to repair OBDII code P246D in a GMC vehicle?
- The cost of repairing code P246D can vary depending on the root cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
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