P2060 — Reductant Injection Air Pump Control Circuit Low #

Note: The code description for P2060 may differ depending on the vehicle manufacturer or OEM (Original Equipment Manufacturer).

• P2060: Reductant Injection Air Pump Control Circuit Low (Generic, SAE)
• P2060: Reductant Injection Air Supply Pump Circuit Low (Ford)
• P2060: Reductant Air Pump Relay Circuit Low (GM/Chevrolet)
• P2060: SCR Injection Air Pump Low Voltage (Mercedes-Benz)

Summary of code P2060 #

The P2060 diagnostic trouble code (DTC) signals that the Engine Control Module (ECM) has detected a low voltage condition in the Reductant Injection Air Pump Control Circuit. This circuit is pivotal in vehicles equipped with Selective Catalytic Reduction (SCR) systems, which use a reductant—commonly Diesel Exhaust Fluid (DEF)—to reduce nitrogen oxide emissions. The air pump injects air to help atomize and distribute the DEF into the exhaust stream, ensuring proper emission control. When the ECM perceives that the voltage in this control circuit is lower than expected, it triggers the P2060 code. This is often an early warning sign of an underlying electrical or component fault within the air injection system.

Common symptoms for code P2060 #

A vehicle displaying P2060 may exhibit a range of symptoms, varying from subtle to more pronounced. Often, drivability is not immediately affected, but emission system performance can degrade. Typical signs include:

• Illuminated Check Engine Light
• SCR/DEF warning light or message on the dashboard
• Failed emissions test
• Reduced engine power (in severe cases)
• Noticeable increase in exhaust emissions or DEF consumption
• Intermittent or abnormal operation of the DEF system

Probable causes for code P2060 #

The most common causes for P2060 relate to faults in the air injection pump circuit, components, or related wiring. In order of likelihood, these include:

1. Faulty reductant injection air pump (the pump motor itself has failed or is binding)
2. Wiring issues (damaged, corroded, or loose connectors or wires in the air pump control circuit)
3. Defective air pump relay (relay not closing or providing power as commanded)
4. Blown fuse associated with the air pump circuit
5. Malfunctioning ECM/PCM (rare, but possible if other components test fine)

Step-by-step diagnostic for code P2060 #

A systematic approach helps pinpoint the root cause of P2060. Follow these steps to diagnose the issue accurately:

1. Visually inspect the air pump, wiring, and connectors for obvious damage, corrosion, or loose connections.
2. Check the corresponding fuse(s) and relay for the reductant injection air pump. Replace if blown or faulty.
3. Using a multimeter, test for proper voltage and ground at the pump connector with the system active.
4. Command the air pump ON with a scan tool and listen for operation; if silent, bench-test the pump directly with 12V.
5. Check the continuity and resistance of the control circuit wiring from the ECM to the pump and relay.
6. If all components pass, test ECM/PCM output and consider reprogramming or replacement as a last resort.

Possible repairs for code P2060 #

Once the root cause is identified, repairs for P2060 typically target the affected component or circuit:

• Replace faulty reductant injection air pump if it fails testing or is seized.
• Repair or replace damaged wiring or connectors in the air pump circuit.
• Replace defective air pump relay or fuse as required.
• Repair corroded terminals or clean/secure loose connections.
• If confirmed, replace or reprogram the ECM/PCM (least common solution).

Can you drive with code P2060? #

Limited – Caution Advised. Driving with a P2060 code is possible for a short period, as it may not immediately impact engine performance. However, the SCR/DEF system may not function correctly, potentially leading to increased emissions and, in some vehicles, a countdown to reduced power or a no-start condition after a set number of drive cycles. It is best to address the issue promptly to avoid costly repairs and ensure compliance with emissions regulations.

Vehicles most commonly affected by code P2060 #

P2060 is most frequently encountered on diesel vehicles equipped with SCR/DEF systems. These include many models from:

• Ford (F-Series Super Duty, Transit, some Focus and Mondeo diesels)
• Chevrolet/GMC (Silverado, Sierra Duramax diesels)
• Mercedes-Benz (Sprinter, E-Class BlueTEC, GL/ML/GLS)
• RAM (1500/2500/3500 with EcoDiesel engines)
• Volkswagen/Audi (TDI models with DEF systems)

Common mistakes & best practices with code P2060 #

Misdiagnosis is common when shortcuts are taken or when only the code is cleared without addressing the underlying issue. To avoid frustration and repeat repairs, consider these tips:

• Do not simply clear the code hoping it was a glitch; verify the root cause.
• Always inspect wiring and connectors before replacing expensive components.
• Check related fuses and relays early in the process.
• Use an OEM service manual or verified wiring diagram for your specific vehicle.
• Do not ignore the code—prolonged SCR/DEF faults can escalate to limp mode or no-start conditions.

Express FAQ for code P2060 #

Here are quick answers to common questions surrounding P2060:

Q: Can a bad DEF fluid cause P2060?
A: No, P2060 specifically refers to a low-voltage condition in the air pump control circuit, not the quality of DEF fluid itself. However, the SCR system may not dose DEF correctly if the air pump is not working.

Q: Will P2060 clear itself if the problem goes away?
A: If the underlying issue is intermittent and resolves, some vehicles may clear the code after several drive cycles. However, most will retain the code and require a scan tool to clear it after repairs.

Need more help? If you’re unsure about tackling this repair, consulting a certified technician or your dealer’s OEM diagnostic procedures is always the safest route.