P20C0 2017 Chevrolet Silverado Code - Reductant Heater 2 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
- P20C0 2017 Chevrolet Silverado indicates Reductant Heater 2 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 P20C0 2017 Chevrolet Silverado Description
The Diagnostic Trouble Code (DTC) will be set when the ECM indicates the reductant line heater control circuit is shorted to a voltage for greater than 4 s.
What are the Possible Causes of the DTC P20C0 2017 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 P20C0 2017 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 P20C0 2017 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 P20C0 2017 Chevrolet Silverado code?
Need more information on how to fix the P20C0 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
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Frequently Asked Questions about P20C0 2017 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P20C0 in a 2017 Chevrolet Silverado?
The common symptoms of OBDII code P20C0 in a 2017 Chevrolet Silverado include the check engine light coming on, reduced engine power, and potential issues with the vehicle's emissions system.
2. What does the OBDII code P20C0 "Reductant Heater 2 Control Circuit High Voltage" mean in a 2017 Chevrolet Silverado?
The OBDII code P20C0 indicates a problem with the reductant heater 2 control circuit in the emissions system of a 2017 Chevrolet Silverado, specifically detecting high voltage in this circuit.
3. What are the possible causes of OBDII code P20C0 in a 2017 Chevrolet Silverado?
Possible causes of OBDII code P20C0 in a 2017 Chevrolet Silverado include a faulty reductant heater, damaged wiring or connectors in the control circuit, a malfunctioning powertrain control module, or issues with the reductant system components.
4. How serious is OBDII code P20C0 in a 2017 Chevrolet Silverado?
OBDII code P20C0 in a 2017 Chevrolet Silverado should be addressed promptly as it can lead to reduced engine performance, increased emissions, and potential damage to the vehicle's emissions system if left unresolved.
5. Can I continue driving my 2017 Chevrolet Silverado with OBDII code P20C0 present?
It is not recommended to continue driving your 2017 Chevrolet Silverado with OBDII code P20C0 present, as it can lead to further damage to the emissions system and potentially affect the vehicle's performance.
6. How can I diagnose and repair OBDII code P20C0 in my 2017 Chevrolet Silverado?
Diagnosing and repairing OBDII code P20C0 in a 2017 Chevrolet Silverado typically involves using a diagnostic scanner to pinpoint the issue, checking the reductant heater and its circuit for faults, repairing or replacing damaged components, and clearing the code.
7. Is it possible to clear OBDII code P20C0 in a 2017 Chevrolet Silverado without fixing the issue?
Clearing OBDII code P20C0 without addressing the underlying problem is not recommended, as the issue causing the code will persist and may lead to further complications down the line.
8. How much does it cost to repair OBDII code P20C0 in a 2017 Chevrolet Silverado?
The cost to repair OBDII code P20C0 in a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services.
9. Can a DIY enthusiast fix OBDII code P20C0 in a 2017 Chevrolet Silverado?
While some DIY enthusiasts with experience in automotive repair may be able to diagnose and fix OBDII code P20C0 in a 2017 Chevrolet Silverado, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair.
10. How can I prevent OBDII code P20C0 from occurring in my 2017 Chevrolet Silverado?
To prevent OBDII code P20C0 in a 2017 Chevrolet Silverado, it is essential to perform regular maintenance on the vehicle's emissions system, address any warning signs promptly, and avoid driving with known issues that could affect the reductant heater circuit.
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