OBD-II Generic Error Code P2064: How to Fix It

Q: What does OBD-II code P2064 mean?

P2064 indicates a fault in the reductant injector supply circuit, which controls the injection of diesel exhaust fluid (DEF) into the exhaust system of diesel vehicles. The PCM has detected an abnormal voltage or current in this circuit.

Q: Can I drive my car with code P2064?

It is not recommended to drive for long periods with this code. The vehicle may enter limp mode, reducing power, and continued driving can damage the SCR system or cause failed emissions tests. Address the issue promptly.

Q: What parts do I need to fix P2064?

Common replacement parts include the reductant injector, fuses, relays, and wiring connectors. Always use OEM or high-quality aftermarket parts to ensure proper fit and function.

Q: How much does it cost to fix P2064?

DIY costs range from $20 (fuse) to $200 (injector). Professional repair may cost $200-$800 depending on labor and parts, especially if the PCM needs reprogramming.

Q: Is P2064 a serious error?

Yes, medium severity. If ignored, it can lead to reduced fuel economy, increased emissions, and potential catalytic converter damage. It may also prevent the vehicle from passing emissions tests.

Abstract

Error code P2064 indicates a problem in the reductant injector supply circuit, typically in diesel vehicles equipped with Selective Catalytic Reduction (SCR) systems. This code is set when the Powertrain Control Module (PCM) detects an abnormal voltage or current in the circuit that controls the injection of diesel exhaust fluid (DEF) into the exhaust stream. Common causes include a faulty reductant injector, damaged wiring or connectors, a blown fuse, or a defective control module.