P2064 Volkswagen Code - Reductant/Regeneration Supply Control Circuit High
Quick Answer
The code indicates that the Powertrain Control Module (PCM) has detected a malfunction in the reductant injector air pump control circuit. Common causes include Faulty Reductant Injector Air Pump, Reductant Injector Air Pump harness is open or shorted, Reductant Injector Air Pump 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
- P2064 Volkswagen indicates Reductant/Regeneration Supply Control Circuit High.
- Common causes
- Common causes include Faulty Reductant Injector Air Pump, Reductant Injector Air Pump harness is open or shorted, Reductant Injector Air Pump 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 P2064 Volkswagen Description
What are the Possible Causes of the DTC P2064 Volkswagen?
- Faulty Reductant Injector Air Pump
- Reductant Injector Air Pump harness is open or shorted
- Reductant Injector Air Pump circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P2064 Volkswagen?
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 P2064 Volkswagen 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.
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Frequently Asked Questions about P2064 Volkswagen Code
1. What does the P2064 code mean for a Volkswagen?
The P2064 code indicates a "Reductant/Regeneration Supply Control Circuit High," meaning the system controlling diesel exhaust fluid (DEF) delivery to reduce emissions has an electrical issue.
2. What are the common symptoms of the P2064 code in a Volkswagen?
Symptoms may include the check engine light turning on, reduced engine performance, increased emissions, or a DEF system warning on the dashboard.
3. What causes the P2064 code in a Volkswagen?
Potential causes include a faulty reductant pump, damaged wiring or connectors in the DEF system, a malfunctioning control module, or electrical issues such as shorted circuits.
4. Can I drive my car with the P2064 code active?
While the car may drive with the code active, it may experience reduced performance or eventually enter a limp mode. Prolonged driving without repair can damage the emissions system.
5. How do I diagnose a P2064 code in my Volkswagen?
Diagnosing the code typically involves scanning with an OBDII tool, inspecting the DEF pump and wiring for damage, and checking for proper voltage in the reductant system circuit.
6. What repairs are needed to fix the P2064 code?
Repairs may include replacing the reductant pump, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the DEF system control module.
7. Is the P2064 code covered under warranty for Volkswagen vehicles?
Depending on your vehicle's age and mileage, the DEF system may be covered under the emissions warranty. Check with your Volkswagen dealer for details.
8. How much does it cost to fix the P2064 code on a Volkswagen?
Repair costs can range from $200 to $1,000, depending on whether the issue involves wiring repairs or replacement of the reductant pump or control module.
9. Can a low DEF level cause the P2064 code in a Volkswagen?
A low DEF level itself does not trigger P2064 but can cause related system warnings. Always ensure the DEF tank is adequately filled before further diagnosis.
10. How can I prevent the P2064 code from reoccurring?
Regular maintenance of the DEF system, including checking for leaks, inspecting wiring, and ensuring proper fluid levels, can help prevent this code from returning.
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