P20BC 2014 Chevrolet Silverado Code - Reductant Heater 1 Control Circuit High Voltage
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
- P20BC 2014 Chevrolet Silverado indicates Reductant Heater 1 Control Circuit High Voltage.
- 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 P20BC 2014 Chevrolet Silverado Description
The Diagnostic Trouble Code (DTC) will be set when the ECM indicates the reductant tank heater control circuit is shorted to a voltage for greater than 4 s.
What are the Possible Causes of the DTC P20BC 2014 Chevrolet Silverado?
- 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 P20BC 2014 Chevrolet Silverado?
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 P20BC 2014 Chevrolet Silverado 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 P20BC 2014 Chevrolet Silverado code?
Need more information on how to fix the P20BC 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals
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Frequently Asked Questions about P20BC 2014 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P20BC on a 2014 Chevrolet Silverado related to the Reductant Heater 1 Control Circuit High Voltage?
- Common symptoms include the check engine light illuminating, reduced engine performance, and potential issues with the vehicle's emissions system.
2. What are the possible causes of OBDII code P20BC on a 2014 Chevrolet Silverado?
- The code P20BC can be triggered by issues such as a faulty reductant heater, damaged wiring or connectors, a malfunctioning powertrain control module (PCM), or a blown fuse.
3. How can I diagnose the cause of OBDII code P20BC on my 2014 Chevrolet Silverado?
- Diagnosing the issue may involve inspecting the reductant heater system, checking the wiring and connectors for damage, testing the heater's resistance, and verifying proper voltage supply to the heater.
4. Are there any DIY repair tips for addressing OBDII code P20BC on a 2014 Chevrolet Silverado?
- DIY repair tips may include checking and replacing blown fuses, repairing damaged wiring or connectors, and replacing the reductant heater if it is found to be faulty.
5. Can driving with OBDII code P20BC on a 2014 Chevrolet Silverado cause further damage to the vehicle?
- While driving with the code may not immediately harm the vehicle, prolonged driving with emission-related issues can potentially lead to increased emissions, reduced fuel efficiency, and ultimately, harm the environment.
6. Is it safe to continue driving my 2014 Chevrolet Silverado with the check engine light on due to code P20BC?
- It is generally recommended to address the underlying issue causing the check engine light to ensure optimal vehicle performance and emissions compliance.
7. How much does it typically cost to repair OBDII code P20BC on a 2014 Chevrolet Silverado at a dealership or repair shop?
- The cost of repairing code P20BC can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
8. Will resetting the check engine light resolve OBDII code P20BC on a 2014 Chevrolet Silverado?
- Resetting the check engine light may temporarily turn off the light, but it will not fix the underlying issue causing the code. It is important to diagnose and repair the problem to prevent it from reoccurring.
9. Can a faulty reductant heater impact the overall performance of a 2014 Chevrolet Silverado?
- Yes, a faulty reductant heater can impact the vehicle's emissions system, potentially leading to reduced engine performance and fuel efficiency.
10. How frequently does OBDII code P20BC related to the Reductant Heater 1 Control Circuit High Voltage occur in 2014 Chevrolet Silverado vehicles?
- The occurrence of code P20BC can vary among vehicles, but it is not an uncommon issue in 2014 Chevrolet Silverado models, especially as the vehicle ages.
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