BMW DTC P2435 – AIR System Air Flow/Pressure Sensor Circuit (Bank 2)
DTC P2435 meaning on BMW
DTC P2435 on a BMW indicates a fault with the AIR system air flow/pressure sensor circuit in Bank 2. This fault code is specific to the secondary air injection system, which is responsible for reducing emissions during cold starts by injecting fresh air into the exhaust system.
BMW DTC P2435 symptoms
Symptoms of DTC P2435 on a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance
- Increased fuel consumption
- Rough idling or stalling
BMW DTC P2435 causes
Common causes of DTC P2435 on a BMW include:
- Faulty air flow/pressure sensor
- Wiring or connector issues in the sensor circuit
- Issues with the secondary air injection system components
BMW DTC P2435 seriousness
While DTC P2435 may not cause immediate drivability issues, it is important to address this fault code promptly to ensure optimal engine performance and emissions compliance. Ignoring this fault could lead to increased emissions and potential damage to other engine components.
How to diagnose DTC P2435 on BMW
To diagnose DTC P2435 on a BMW, follow these steps:
- Use an OBD-II scanner to retrieve the fault code and freeze frame data
- Inspect the air flow/pressure sensor and its wiring for any visible damage or corrosion
- Check the secondary air injection system components for proper operation
- Perform a smoke test to check for leaks in the air intake system
How to fix DTC P2435 on BMW
To fix DTC P2435 on a BMW, consider the following steps:
- Replace the faulty air flow/pressure sensor if necessary
- Repair any damaged wiring or connectors in the sensor circuit
- Clean or replace any clogged secondary air injection system components
- Clear the fault code and reset the Check Engine Light
How to erase DTC P2435 on BMW
To erase DTC P2435 on a BMW, you can use an OBD-II scanner to clear the fault code and reset the Check Engine Light. Make sure that the underlying issue causing the fault code has been addressed before clearing it to prevent it from reoccurring.
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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