BMW DTC P1115 – Ambient Air Temperature Sensor Error Value Received (M52LEV, S54 to 09/00: Coolant Temperature Sensor Plausibility)
DTC P1115 meaning on BMW
The DTC P1115 on BMW vehicles refers to an Ambient Air Temperature Sensor Error Value Received. This specific code is related to the M52LEV and S54 engines up to September 2000, where it indicates a Coolant Temperature Sensor Plausibility issue.
BMW DTC P1115 symptoms
Symptoms of the DTC P1115 on a BMW may include:
- Check Engine Light illuminated
- Inaccurate temperature readings on the dashboard
- Potential engine performance issues
BMW DTC P1115 causes
The DTC P1115 on a BMW can be caused by various factors, including:
- Faulty Ambient Air Temperature Sensor
- Defective Coolant Temperature Sensor
- Wiring or connection issues
- ECU communication problems
BMW DTC P1115 seriousness
While the DTC P1115 may not always result in immediate drivability issues, it is essential to address this fault promptly. Ignoring this code can lead to potential engine performance problems and inaccurate temperature readings, which may affect overall vehicle operation.
How to diagnose DTC P1115 on BMW
To diagnose the DTC P1115 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the Ambient Air Temperature Sensor and Coolant Temperature Sensor for any visible damage
- Check the wiring and connections related to these sensors
- Perform a thorough inspection of the ECU communication system
How to fix DTC P1115 on BMW
To fix the DTC P1115 on a BMW, you can consider the following actions:
- Replace the faulty Ambient Air Temperature Sensor or Coolant Temperature Sensor
- Repair any damaged wiring or connections
- Ensure proper communication between the sensors and the ECU
- Clear the fault codes and perform a test drive to verify the repair
How to erase DTC P1115 on BMW
To erase the DTC P1115 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECU memory. After addressing the underlying issue causing the fault code, clearing the code will reset the Check Engine Light and allow for a fresh monitoring cycle.
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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