P20BD 2017 GMC Sierra Code - Reductant Heater 2 Control Circuit
Quick Answer
As reductant will freeze at temperatures below -11°C (12°F), there are 2 reductant heaters located in the reductant tank. Common causes include Faulty Reductant Heater, Reductant Heater harness is open or shorted, Reductant Heater 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
- P20BD 2017 GMC Sierra indicates Reductant Heater 2 Control Circuit.
- Common causes
- Common causes include Faulty Reductant Heater, Reductant Heater harness is open or shorted, Reductant Heater 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 P20BD 2017 GMC Sierra Description
The Diagnostic Trouble Code (DTC) will be set when the ECM indicates the reductant line heater control circuit is open for greater than 4 s.
What are the Possible Causes of the DTC P20BD 2017 GMC Sierra?
- Faulty Reductant Heater
- Reductant Heater harness is open or shorted
- Reductant Heater circuit poor electrical connection
- Faulty Reductant Pump and Sensor Assembly
- Faulty Reductant Control Module
How to Fix the DTC P20BD 2017 GMC Sierra?
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 P20BD 2017 GMC Sierra 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.
Need more information about the P20BD 2017 GMC Sierra code?
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Frequently Asked Questions about P20BD 2017 GMC Sierra Code
1. What are the common symptoms of OBDII code P20BD in a 2017 GMC Sierra related to the Reductant Heater 2 Control Circuit?
The common symptoms include the check engine light illuminating on the dashboard, reduced engine performance, and potential issues with emissions control.
2. What are the possible causes of OBDII code P20BD in a 2017 GMC Sierra?
Potential causes of this code may include a faulty reductant heater 2, damaged wiring or connectors in the control circuit, or issues with the powertrain control module (PCM).
3. How can I diagnose OBDII code P20BD in my 2017 GMC Sierra?
Diagnosing this code typically involves using an OBDII scanner to retrieve the specific fault code, conducting a visual inspection of the reductant heater 2 components, and testing the related wiring and connectors for continuity and proper voltage.
4. Can I continue driving my 2017 GMC Sierra with OBDII code P20BD related to the Reductant Heater 2 Control Circuit?
It is not recommended to continue driving the vehicle with this fault code present, as it can lead to further damage to the emissions control system and potentially affect the vehicle's performance.
5. How can I repair OBDII code P20BD in my 2017 GMC Sierra?
Repairing this code may involve replacing the faulty reductant heater 2, repairing or replacing damaged wiring or connectors, or resetting the PCM after addressing the underlying issue.
6. Is it possible to clear OBDII code P20BD in a 2017 GMC Sierra without fixing the underlying issue?
While you can clear the fault code with an OBDII scanner, it is not recommended to do so without addressing the root cause, as the issue may persist and trigger the code again in the future.
7. How much does it typically cost to repair OBDII code P20BD in a 2017 GMC Sierra at a dealership or a mechanic?
The cost of repairing this code can vary depending on the extent of the issue and the labor rates of the service provider. It is advisable to get a diagnosis and estimate from a professional technician.
8. Are there any preventive maintenance tips to avoid OBDII code P20BD in a 2017 GMC Sierra?
Regularly servicing the vehicle, including following the manufacturer's recommended maintenance schedule, can help prevent issues like OBDII code P20BD related to the Reductant Heater 2 Control Circuit.
9. Can a DIY enthusiast fix OBDII code P20BD in a 2017 GMC Sierra at home?
While some aspects of diagnosing and repairing this code may be possible for DIY enthusiasts with the right tools and knowledge, it is recommended to consult a professional technician for proper diagnosis and repair to ensure safety and accuracy.
10. Will OBDII code P20BD in a 2017 GMC Sierra cause the vehicle to fail an emissions test?
Yes, this fault code related to the Reductant Heater 2 Control Circuit can affect emissions control, potentially causing the vehicle to fail an emissions test. It is important to address the issue promptly to ensure compliance with regulations.
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