P2699 Code - Exhaust Aftertreatment Fuel Injector 'A' Circuit Low
Quick Answer
The P2699 diagnostic trouble code (DTC) indicates a low circuit voltage in the exhaust aftertreatment fuel injector 'A'. Common causes include Faulty exhaust aftertreatment fuel injector, Wiring or connector issues in the circuit, Corrosion or damage to the injector or circuit components. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2699 indicates Exhaust Aftertreatment Fuel Injector 'A' Circuit Low.
- Common causes
- Common causes include Faulty exhaust aftertreatment fuel injector, Wiring or connector issues in the circuit, Corrosion or damage to the injector or circuit components.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P2699 Description
The P2699 diagnostic trouble code (DTC) indicates a low circuit voltage in the exhaust aftertreatment fuel injector 'A'. This injector is responsible for injecting fuel into the exhaust system to help reduce emissions and meet environmental standards. When the circuit voltage is low, it can affect the injector's ability to function properly, leading to inefficient fuel injection and potential issues with emissions control. This can result in decreased fuel efficiency, increased emissions, and potentially cause the vehicle to fail emissions testing.
Common Causes of P2699
- Faulty exhaust aftertreatment fuel injector
- Wiring or connector issues in the circuit
- Corrosion or damage to the injector or circuit components
- ECM (Engine Control Module) software issues
- Exhaust system leaks or damage
Symptoms of P2699
- Decreased fuel efficiency
- Rough idling or stalling
- Check engine light illuminating
- Increased emissions
- Failed emissions testing
How to Fix P2699
- Diagnose the issue using a scan tool to confirm the P2699 code and pinpoint the exact cause.
- Inspect the wiring and connectors for any damage or corrosion and repair or replace as necessary.
- Test the exhaust aftertreatment fuel injector 'A' for proper function and replace if it is faulty.
- Check for any leaks or damage in the exhaust system and repair as needed.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P2699
The cost estimate for repairing the P2699 code can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair for this code can range from $200 to $500, including parts and labor. Keep in mind that diagnostic time and labor rates can vary, so it's recommended to get quotes from multiple auto repair shops to find the best price.
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Frequently Asked Questions about P2699 Code
What does OBD-II code P2699 mean?
Code P2699 indicates a problem with the Exhaust Aftertreatment Fuel Injector 'A' Circuit, specifically a low voltage condition detected by the powertrain control module (PCM).
What are the common symptoms of code P2699?
Symptoms may include an illuminated check engine light, reduced fuel efficiency, poor engine performance, or issues with the vehicle's emissions system.
What causes code P2699?
Common causes include a faulty exhaust aftertreatment fuel injector, damaged wiring or connectors in the injector circuit, or a malfunctioning powertrain control module (PCM).
Can I drive with code P2699?
Driving with this code may result in increased emissions and reduced engine efficiency. It's recommended to address the issue promptly to avoid further damage.
How is code P2699 diagnosed?
A mechanic will typically use a scan tool to retrieve the code, inspect the wiring and connectors, test the fuel injector, and check for proper voltage in the circuit.
What repairs can fix code P2699?
Repairs may include replacing the exhaust aftertreatment fuel injector, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.
How much does it cost to fix code P2699?
Repair costs vary depending on the specific issue but can range from $200 to $600 for parts and labor, with injector replacement being a common expense.
Can a dirty exhaust system cause code P2699?
While a dirty exhaust system is not a direct cause, buildup in the system can affect injector performance and lead to related issues.
What happens if code P2699 is ignored?
Ignoring this code can result in increased emissions, reduced fuel efficiency, and potential damage to the exhaust aftertreatment system over time.
Is code P2699 related to the diesel exhaust fluid (DEF) system?
Yes, in vehicles equipped with DEF systems, this code may be associated with the injector responsible for dosing fuel or DEF into the exhaust system.
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