BMW DTC P2199 – Intake Air Temperature Sensor 1 / 2 Correlation
DTC P2199 meaning on BMW
DTC P2199 on a BMW indicates a correlation problem between the intake air temperature sensor 1 and intake air temperature sensor 2. This means that the Engine Control Module (ECM) has detected a discrepancy in the readings between the two sensors, which are responsible for monitoring the temperature of the incoming air into the engine.
BMW DTC P2199 symptoms
Symptoms of DTC P2199 on a BMW may include:
- Check Engine Light illuminated
- Reduced engine performance
- Poor fuel efficiency
- Rough idling or stalling
BMW DTC P2199 causes
The possible causes of DTC P2199 on a BMW include:
- Faulty intake air temperature sensors
- Wiring or connector issues in the intake air temperature sensor circuit
- ECM software or hardware problems
BMW DTC P2199 seriousness
While DTC P2199 may not cause immediate engine failure, it can lead to poor engine performance and reduced fuel efficiency. Ignoring this fault code can potentially cause further damage to the engine over time.
How to diagnose DTC P2199 on BMW
To diagnose DTC P2199 on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the intake air temperature sensors and their wiring for any visible damage
- Check the sensor readings using a multimeter to verify their functionality
- Perform a visual inspection of the intake air system for any leaks or obstructions
How to fix DTC P2199 on BMW
To fix DTC P2199 on a BMW, you can try the following solutions:
- Replace the faulty intake air temperature sensors
- Repair any damaged wiring or connectors in the sensor circuit
- Update the ECM software to the latest version
- Clean or replace the air filter if necessary
How to erase DTC P2199 on BMW
To erase DTC P2199 on a BMW, you can use a diagnostic scanner to clear the fault code from the ECM’s memory. After fixing the underlying issue that caused the fault code, you can reset the Check Engine Light and ensure that the code does not reappear during subsequent driving cycles.
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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