P2697 – BMW DTC

BMW DTC P2697 – Exhaust Aftertreatment Fuel Injector ‘A’ Circuit/Open

DTC P2697 meaning on BMW

DTC P2697 on a BMW indicates a fault with the Exhaust Aftertreatment Fuel Injector ‘A’ circuit. This fault code is triggered when the Engine Control Module (ECM) detects an open circuit or a lack of communication from the fuel injector in the exhaust aftertreatment system.

BMW DTC P2697 symptoms

Symptoms of DTC P2697 on a BMW may include:

• Check Engine Light illuminated
• Reduced engine performance
• Increased fuel consumption
• Engine misfires
• Smoke from the exhaust

BMW DTC P2697 causes

Common causes of DTC P2697 on a BMW include:

• Faulty Exhaust Aftertreatment Fuel Injector ‘A’
• Open or short circuit in the wiring harness
• Corrosion or poor connections in the fuel injector circuit
• Defective Engine Control Module (ECM)

BMW DTC P2697 seriousness

DTC P2697 should not be ignored as it can lead to poor engine performance, increased emissions, and potential damage to the exhaust aftertreatment system. It is recommended to address this issue promptly to prevent further complications.

How to diagnose DTC P2697 on BMW

To diagnose DTC P2697 on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the ECM.
2. Inspect the wiring harness connected to the Exhaust Aftertreatment Fuel Injector ‘A’ for any visible damage or corrosion.
3. Test the continuity of the circuit using a multimeter to check for any open or short circuits.
4. If necessary, perform a resistance test on the fuel injector itself to determine if it is functioning properly.

How to fix DTC P2697 on BMW

To fix DTC P2697 on a BMW, consider the following steps:

1. Replace the faulty Exhaust Aftertreatment Fuel Injector ‘A’ if it is determined to be the cause of the issue.
2. Repair any damaged wiring or connectors in the circuit.
3. If the ECM is found to be defective, consider replacing or reprogramming it as needed.
4. Clear the fault codes using a diagnostic scanner after completing the repairs.

How to erase DTC P2697 on BMW

To erase DTC P2697 on a BMW, follow these steps:

1. Connect a diagnostic scanner to the vehicle’s OBD-II port.
2. Access the ECM and navigate to the option to clear fault codes.
3. Follow the on-screen prompts to erase the DTC P2697 code from the system.
4. Verify that the code has been successfully cleared by rescanning the ECM for any remaining fault codes.

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

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