BMW DTC P0872 – Transmission Fluid Pressure Sensor/Switch ‘C’ Circuit Low
DTC P0872 meaning on BMW
DTC P0872 on a BMW indicates a low voltage condition in the transmission fluid pressure sensor/switch ‘C’ circuit. This sensor is responsible for monitoring the hydraulic pressure within the transmission. The low voltage reading suggests that the signal being sent by the sensor is below the expected range.
BMW DTC P0872 symptoms
Symptoms of DTC P0872 on a BMW may include harsh shifting, delayed engagement when shifting gears, transmission slipping, and in some cases, the transmission may go into limp mode. The Check Engine Light (CEL) may also illuminate on the dashboard.
BMW DTC P0872 causes
The common causes of DTC P0872 on a BMW include a faulty transmission fluid pressure sensor/switch ‘C’, damaged wiring or connectors in the sensor circuit, low transmission fluid level, or a malfunctioning transmission control module (TCM).
BMW DTC P0872 seriousness
Ignoring DTC P0872 on a BMW can lead to further damage to the transmission system, potentially resulting in costly repairs. It is important to address this issue promptly to prevent any long-term damage to the vehicle.
How to diagnose DTC P0872 on BMW
To diagnose DTC P0872 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and perform a visual inspection of the transmission fluid pressure sensor/switch ‘C’ and its wiring. They may also conduct a voltage test to check the sensor’s output signal and ensure it falls within the specified range.
How to fix DTC P0872 on BMW
Fixing DTC P0872 on a BMW may involve replacing the transmission fluid pressure sensor/switch ‘C’ if it is found to be faulty. Additionally, repairing any damaged wiring or connectors in the sensor circuit, ensuring the transmission fluid level is correct, and addressing any issues with the TCM can help resolve the problem.
How to erase DTC P0872 on BMW
Once the underlying issue causing DTC P0872 on a BMW has been fixed, the fault code can be cleared using a diagnostic scanner. This will reset the Check Engine Light and erase the DTC from the vehicle’s memory.
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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