BMW DTC P25C4 – Brake Booster Temperature Sensor ‘A’ Circuit
DTC P25C4 meaning on BMW
The DTC P25C4 code on a BMW indicates an issue with the Brake Booster Temperature Sensor ‘A’ Circuit. This sensor is responsible for monitoring the temperature of the brake booster to ensure optimal performance of the braking system.
BMW DTC P25C4 symptoms
Symptoms of the BMW DTC P25C4 code may include:
- Check Engine Light illuminated
- Brake system warning light on
- Decreased braking performance
- Increased stopping distance
BMW DTC P25C4 causes
Common causes of the BMW DTC P25C4 code include:
- Faulty brake booster temperature sensor
- Wiring or connection issues in the sensor circuit
- Corrosion or damage to sensor components
BMW DTC P25C4 seriousness
The BMW DTC P25C4 code should be addressed promptly as it can affect the proper functioning of the braking system. Ignoring this issue may lead to safety concerns and potential brake failure.
How to diagnose DTC P25C4 on BMW
To diagnose the DTC P25C4 code on a BMW, you can:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the brake booster temperature sensor and its wiring for any visible damage
- Test the sensor’s resistance and voltage output
How to fix DTC P25C4 on BMW
To fix the DTC P25C4 code on a BMW, you may need to:
- Replace the faulty brake booster temperature sensor
- Repair or replace any damaged wiring or connections in the sensor circuit
- Clear the fault codes and perform a test drive to ensure the issue is resolved
How to erase DTC P25C4 on BMW
To erase the DTC P25C4 code on a BMW, you can:
- Use a diagnostic scanner to clear the fault codes
- Disconnect the car’s battery for a few minutes to reset the system
- After performing the necessary repairs, ensure the issue is resolved before clearing the 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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