BMW DTC P2699 – Exhaust Aftertreatment Fuel Injector ‘A’ Circuit Low
DTC P2699 meaning on BMW
The Diagnostic Trouble Code (DTC) P2699 for BMW refers to the Exhaust Aftertreatment Fuel Injector ‘A’ Circuit Low. This code indicates that there is a low voltage condition detected in the circuit of the exhaust aftertreatment fuel injector ‘A’. The fuel injector is responsible for injecting fuel into the exhaust system to aid in the regeneration process of the diesel particulate filter (DPF).
BMW DTC P2699 symptoms
Symptoms of DTC P2699 on a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance
- Increased fuel consumption
- Possible black smoke from the exhaust
BMW DTC P2699 causes
The common causes of DTC P2699 on a BMW include:
- Faulty exhaust aftertreatment fuel injector ‘A’
- Wiring or connector issues in the fuel injector circuit
- Software or calibration issues
BMW DTC P2699 seriousness
DTC P2699 should not be ignored as it can lead to poor engine performance and increased emissions. If left unresolved, it may also cause damage to the exhaust aftertreatment system components.
How to diagnose DTC P2699 on BMW
To diagnose DTC P2699 on a BMW, you can follow these steps:
- Use a diagnostic scan tool to retrieve the fault codes stored in the vehicle’s Engine Control Module (ECM)
- Inspect the wiring and connectors related to the exhaust aftertreatment fuel injector ‘A’ for any visible damage or corrosion
- Test the fuel injector for proper operation and resistance
- Check for any software updates or calibrations available for the ECM
How to fix DTC P2699 on BMW
To fix DTC P2699 on a BMW, you can try the following solutions:
- Replace the faulty exhaust aftertreatment fuel injector ‘A’
- Repair or replace any damaged wiring or connectors in the fuel injector circuit
- Perform any necessary software updates or calibrations for the ECM
How to erase DTC P2699 on BMW
To erase DTC P2699 on a BMW, you can use a diagnostic scan tool to clear the fault codes stored in the ECM. After performing the necessary repairs or replacements, you can reset the codes to see if the issue has been resolved.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.