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P2062 OBD2: Reductant/Regeneration Supply Control Circuit/Open

P2062 OBD2: Reductant/Regeneration Supply Control Circuit/Open

The P2062 code is a diagnostic trouble code (DTC) associated with the reductant or regeneration supply control circuit in vehicles equipped with diesel engines. This code indicates a specific problem within the system responsible for the injection of Diesel Exhaust Fluid (DEF), which is crucial for reducing harmful emissions.

What Does the P2062 Code Mean?

The P2062 code means that the vehicle’s on-board diagnostic system has detected an issue with the reductant/regeneration supply control circuit. Essentially, this code points to an open circuit or wiring issue that is preventing proper communication or operation of the DEF system.

What Causes the P2062 Code?

There are several factors that can lead to the triggering of the P2062 code, including:

  • DEF injector failure
  • Wiring issues within the circuit
  • Faulty sensors associated with the DEF system
  • Corrosion or damage in electrical connections

What Are the Symptoms of the P2062 Code?

When the P2062 code is present, you may notice the following symptoms:

  • Reduced engine performance
  • DPF (Diesel Particulate Filter) regeneration may not occur
  • Warning lights illuminated on the dashboard
  • Increased emissions

How Serious Is the P2062 Code?

The P2062 code is considered urgent, as it signifies a significant malfunction that can lead to severe damage to the vehicle or pose risks to driver and passenger safety. Ignoring this code can result in further complications and costly repairs.

How to Diagnose the P2062 Code

Proper diagnosis of the P2062 code typically involves:

  1. Using an OBD-II scanner to confirm the code and check for any additional codes.
  2. Inspecting the DEF system and wiring for any visible damage or corrosion.
  3. Testing the DEF injector to ensure it is functioning correctly.
  4. Checking electrical connections and ensuring proper voltage and ground supply to the relevant components.

Common Repairs for the P2062 Code

Repairs for the P2062 code may include:

  • Replacing a faulty DEF injector
  • Repairing or replacing damaged wiring or connectors
  • Cleaning or replacing sensors associated with the DEF system
  • Updating the vehicle’s software if applicable

How Much Does It Cost to Fix the P2062 Code?

The cost to repair the P2062 code can vary widely based on the exact issue and the labor rates in your area. On average, repairs may range from $100 to $1,000 or more, depending on whether parts need to be replaced and the complexity of the repairs.

Can I Fix the P2062 Code Myself?

While some DIY enthusiasts may be able to tackle minor wiring repairs or sensor replacements, diagnosing and fixing the P2062 code often requires specialized tools and knowledge. It is recommended to consult a professional mechanic for accurate diagnosis and repair to ensure safety and proper vehicle operation.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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