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P2697 OBD2: Exhaust Aftertreatment Fuel Injector "A" Circuit/Open

P2697 OBD2: Exhaust Aftertreatment Fuel Injector “A” Circuit/Open

What Does the P2697 Code Mean?

The P2697 code is an OBD-II diagnostic trouble code that indicates a problem with the exhaust aftertreatment fuel injector “A” circuit. This code is specific to vehicles equipped with diesel engines that utilize Diesel Exhaust Fluid (DEF) for emissions control.

What Causes the P2697 Code?

The P2697 code can be triggered by several issues, including:

  • DEF injector failure
  • Powertrain Control Module (PCM) failure
  • Wiring issues related to the DEF injector

What Are the Symptoms of the P2697 Code?

Common symptoms associated with the P2697 code include:

  • Decreased engine performance
  • DPF (Diesel Particulate Filter) regeneration may not occur

How Serious Is the P2697 Code?

The severity of the P2697 code is considered moderate. While it may not immediately threaten the vehicle’s safety or functionality, it is important to address it promptly to avoid further complications and ensure optimal engine performance.

How to Diagnose the P2697 Code?

Diagnosing the P2697 code typically involves:

  1. Using an OBD-II scanner to confirm the code
  2. Inspecting the DEF injector and associated wiring for damage or corrosion
  3. Checking the functionality of the Powertrain Control Module (PCM)

Common Repairs for the P2697 Code

Repairs for the P2697 code may include:

  • Replacing a faulty DEF injector
  • Repairing or replacing damaged wiring
  • Addressing any issues with the Powertrain Control Module (PCM)

How Much Does It Cost to Fix the P2697 Code?

The cost to repair the P2697 code can vary widely depending on the specific issue. On average, repairs may range from $100 to $1,000, depending on whether you need to replace the DEF injector, wiring, or PCM.

Can I Fix the P2697 Code Myself?

If you have experience with automotive repairs, you may be able to diagnose and fix the P2697 code yourself, especially if it involves inspecting wiring or replacing the DEF injector. However, for more complex issues, such as PCM failures, it is advisable to seek professional assistance.

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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