P20CD Code - Exhaust Aftertreatment Fuel Injector Control Circuit Low Voltage
Quick Answer
The exhaust fuel addition injector assembly is mounted on the outlet of the turbocharger sub-assembly, and low-pressure fuel is supplied to the exhaust fuel addition injector assembly by the feed pump in the supply pump assembly. Common causes include Faulty Exhaust Aftertreatment Fuel Injector, Exhaust Aftertreatment Fuel Injector harness is open or shorted, Exhaust Aftertreatment Fuel Injector 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
- P20CD indicates Exhaust Aftertreatment Fuel Injector Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty Exhaust Aftertreatment Fuel Injector, Exhaust Aftertreatment Fuel Injector harness is open or shorted, Exhaust Aftertreatment Fuel Injector 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 P20CD Description
What are the Possible Causes of the DTC P20CD?
- Faulty Exhaust Aftertreatment Fuel Injector
- Exhaust Aftertreatment Fuel Injector harness is open or shorted
- Exhaust Aftertreatment Fuel Injector circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P20CD?
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 P20CD 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 P20CD code?
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Need Help with the Code?
Get the P20CD code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P20CD Buick — Exhaust Aftertreatment Fuel Injector Control Circuit Low Voltage
- P20CD Cadillac — Exhaust Aftertreatment Fuel Injector Control Circuit Low Voltage
- P20CD Chevrolet — Exhaust Aftertreatment Fuel Injector Control Circuit Low Voltage
- P20CD GMC — Exhaust Aftertreatment Fuel Injector Control Circuit Low Voltage
Frequently Asked Questions about P20CD Code
1. What are the common symptoms of OBDII code P20CD (Exhaust Aftertreatment Fuel Injector Control Circuit Low Voltage)?
- Common symptoms include poor engine performance, reduced fuel efficiency, and the illumination of the check engine light.
2. What are the possible causes of OBDII code P20CD?
- Possible causes may include a faulty exhaust aftertreatment fuel injector, damaged wiring or connectors in the control circuit, or issues with the engine control module.
3. How can I diagnose OBDII code P20CD?
- Diagnosing this code typically involves using a scan tool to read the code, checking the exhaust aftertreatment fuel injector and related components for damage, and inspecting the wiring and connectors for any issues.
4. Can I continue driving with OBDII code P20CD present?
- It is not recommended to continue driving with this code present, as it can lead to further damage to the exhaust aftertreatment system and may cause the vehicle to fail emissions testing.
5. How can I repair OBDII code P20CD?
- Repairing this code may involve replacing the faulty exhaust aftertreatment fuel injector, repairing or replacing damaged wiring or connectors, and clearing the code with a scan tool after completing the repairs.
6. Are there any tips for preventing OBDII code P20CD from recurring?
- Regular maintenance of the exhaust aftertreatment system, including checking the fuel injector and related components for any signs of wear or damage, can help prevent this code from recurring.
7. Can a DIY enthusiast fix OBDII code P20CD at home?
- Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and repair this code at home. However, it is recommended to consult a professional if unsure.
8. How serious is OBDII code P20CD?
- OBDII code P20CD should be taken seriously as it can affect the performance and emissions of the vehicle. Ignoring this code can lead to more significant issues down the line.
9. Is it necessary to reset the engine control module after repairing OBDII code P20CD?
- Yes, it is essential to reset the engine control module using a scan tool after repairing OBDII code P20CD to clear the code and ensure proper functioning of the system.
10. Are there any recalls related to OBDII code P20CD?
- It is recommended to check with the vehicle manufacturer or a trusted mechanic to see if there are any recalls related to OBDII code P20CD for your specific make and model.
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