BMW DTC P1B79 – Drive Motor ‘A’ Temperature Sensor ‘B’ Circuit Temperature Implausible High
DTC P1B79 meaning on BMW
DTC P1B79 on a BMW indicates an issue with the Drive Motor ‘A’ Temperature Sensor ‘B’ Circuit Temperature being implausibly high. This means that the temperature sensor in the drive motor ‘A’ is reporting a temperature that is outside of the expected range, which can lead to performance issues and potential damage if not addressed.
BMW DTC P1B79 symptoms
Symptoms of DTC P1B79 on a BMW may include:
- Check Engine Light illuminated
- Reduced power or performance
- Overheating of the drive motor
- Inconsistent temperature readings
BMW DTC P1B79 causes
Common causes of DTC P1B79 on a BMW include:
- Failed drive motor temperature sensor
- Wiring or connection issues in the temperature sensor circuit
- Faulty control module
BMW DTC P1B79 seriousness
The seriousness of DTC P1B79 on a BMW depends on the underlying cause and how quickly it is addressed. Ignoring this fault can lead to further damage to the drive motor and potentially other components of the vehicle.
How to diagnose DTC P1B79 on BMW
To diagnose DTC P1B79 on a BMW, a mechanic would typically:
- Use a diagnostic scanner to retrieve the fault code and any related codes
- Inspect the drive motor temperature sensor and its wiring for damage or corrosion
- Test the temperature sensor for proper operation
- Check the control module for any faults
How to fix DTC P1B79 on BMW
To fix DTC P1B79 on a BMW, the following steps may be taken:
- Replace the drive motor temperature sensor if faulty
- Repair any damaged wiring or connections in the temperature sensor circuit
- Reset the fault codes and test drive the vehicle to ensure the issue is resolved
How to erase DTC P1B79 on BMW
To erase DTC P1B79 on a BMW, a mechanic can use a diagnostic scanner to clear the fault code from the vehicle’s memory. It is important to ensure that the underlying issue causing the fault code has been addressed before clearing the code 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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