P20C0 2015 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 2015 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 2015 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 2015 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 2015 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 2015 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 2015 Chevrolet Silverado code?
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Frequently Asked Questions about P20C0 2015 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P20C0 in a 2015 Chevrolet Silverado?
- Common symptoms include the check engine light coming on, reduced engine performance, and potential issues with the vehicle's emissions system.
2. What does the OBDII code P20C0 on a 2015 Chevrolet Silverado indicate?
- The code P20C0 specifically points to a problem with the reductant heater 2 control circuit showing high voltage.
3. What are the possible causes of the reductant heater 2 control circuit high voltage issue in a 2015 Chevrolet Silverado?
- Potential causes include a faulty reductant heater, damaged wiring or connectors in the circuit, a failed reductant heater control module, or software issues.
4. How serious is the reductant heater 2 control circuit high voltage problem in a 2015 Chevrolet Silverado?
- While the vehicle may still be operable, it is essential to address this issue promptly to prevent further damage to the emissions system and ensure compliance with emissions regulations.
5. Can I continue to drive my 2015 Chevrolet Silverado with the P20C0 code present?
- It is generally not recommended to drive the vehicle with an active OBDII trouble code, as it can lead to decreased fuel efficiency, increased emissions, and potential damage to other engine components.
6. How can I diagnose and repair the reductant heater 2 control circuit high voltage issue in my 2015 Chevrolet Silverado?
- Diagnosis typically involves checking the reductant heater, inspecting wiring and connectors, testing the reductant heater control module, and addressing any software-related concerns. Repairs may involve replacing components or repairing damaged wiring.
7. Are there any DIY tips for addressing the P20C0 code in a 2015 Chevrolet Silverado?
- DIY enthusiasts with automotive experience may attempt to inspect wiring and connectors for damage, but it is recommended to consult a professional for proper diagnosis and repair of the reductant heater 2 control circuit high voltage problem.
8. How much does it cost to fix the reductant heater 2 control circuit high voltage issue in a 2015 Chevrolet Silverado?
- Repair costs can vary depending on the specific cause of the problem, but they may range from a few hundred dollars for simple fixes like wiring repairs to over a thousand dollars for more complex component replacements.
9. Can resetting the OBDII system clear the P20C0 trouble code in a 2015 Chevrolet Silverado?
- While clearing the code may temporarily turn off the check engine light, it will not fix the underlying issue causing the reductant heater 2 control circuit high voltage fault. It's crucial to diagnose and address the root cause of the problem.
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