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Code P2697

Symptoms

• Check Engine Light illuminated

• Poor engine performance

• Increased emissions

• Possible limp mode

Common Causes

• Faulty exhaust aftertreatment fuel injector A

• Open or shorted wiring in the injector circuit

• Bad connector or poor electrical connection

• Faulty ECM

Glossary

ECM: Engine Control Module

SCR: Selective Catalytic Reduction

Related Codes

• P2698

• P2699

Official description

Exhaust Aftertreatment Fuel Injector A Circuit/Open

Laymans terms

This code means that there is a problem with the part of the car that injects special fluid into the exhaust to help clean it. It's like if the straw you use to blow bubbles got a hole in it, so it can't blow bubbles properly.

Explanation

The code P2697 is set when the Engine Control Module (ECM) detects an open circuit in the exhaust aftertreatment fuel injector A. This injector is responsible for injecting fuel into the exhaust system to aid in emissions reduction.

Technical description

The P2697 code is triggered when the ECM detects an open or malfunction in the circuit of the exhaust aftertreatment fuel injector A. This injector is part of the Selective Catalytic Reduction (SCR) system, which reduces NOx emissions by injecting a reductant (such as diesel exhaust fluid) into the exhaust stream. An open circuit means that the electrical path is broken, preventing the injector from functioning properly.

Diagnosis steps

• Scan the vehicle for codes and confirm P2697 is present.

• Inspect the wiring and connectors for damage or corrosion.

• Test the exhaust aftertreatment fuel injector A for proper operation.

• Check the ECM for faults.

Repair procedures

• Repair or replace damaged wiring or connectors.

• Replace the faulty exhaust aftertreatment fuel injector A.

• Reprogram or replace the ECM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-250

• Chevrolet Silverado 2500

• Ram 2500

Preventive measures

• Regularly inspect and maintain the exhaust system.

• Keep electrical connections clean and secure.

• Use high-quality diesel exhaust fluid.

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the Check Engine Light.

• Have the vehicle inspected by a professional if you are not familiar with vehicle repairs.

Warranty information

Check with your vehicle's manufacturer warranty; emissions components may be covered under an extended warranty.

Historical data

The P2697 code has been associated with diesel vehicles equipped with SCR systems since their introduction to meet stringent emissions standards.

Urgency level

Moderate – While the vehicle may still be drivable, increased emissions and potential performance issues should be addressed promptly.

Legal and safety notice

Driving with a malfunctioning emissions system may not comply with local emissions laws and could lead to fines.

Testing conditions

• Engine running

• Vehicle at operating temperature

Component location

The exhaust aftertreatment fuel injector is typically located near the SCR catalyst in the exhaust system.

FAQs

Q: Can I drive my car with a P2697 code?
A: It's not recommended to drive for extended periods with this code, as it may lead to increased emissions and engine performance issues.

Q: How do I clear a P2697 code?
A: The code can be cleared with an OBD-II scanner after repairs are made, but it will return if the underlying issue is not resolved.

Last updated: Mar 2, 2026 • Source: internal database
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