BMW DTC P1D87 – Heat Pump Pressure/Temperature Sensor ‘B’ Temperature Out of Range Low
DTC P1D87 meaning on BMW
DTC P1D87 on a BMW indicates that the Heat Pump Pressure/Temperature Sensor ‘B’ is detecting a temperature that is out of range low. This sensor is responsible for monitoring the pressure and temperature within the heat pump system of the vehicle.
BMW DTC P1D87 symptoms
Symptoms of DTC P1D87 on a BMW may include poor heating performance, inconsistent cabin temperature, or the climate control system not functioning as expected. The vehicle may also display a warning light on the dashboard indicating a fault with the heat pump system.
BMW DTC P1D87 causes
The most common causes of DTC P1D87 on a BMW include a faulty heat pump pressure/temperature sensor ‘B’, a wiring issue in the sensor circuit, or a problem with the heat pump system itself. Low refrigerant levels or a malfunctioning compressor can also trigger this fault code.
BMW DTC P1D87 seriousness
While DTC P1D87 may not cause immediate drivability issues, it is important to address this fault promptly to ensure proper functioning of the vehicle’s heating and cooling system. Ignoring this fault could lead to discomfort for the occupants and potential long-term damage to the heat pump components.
How to diagnose DTC P1D87 on BMW
To diagnose DTC P1D87 on a BMW, a diagnostic scan tool capable of reading BMW-specific fault codes is required. The technician will need to inspect the heat pump pressure/temperature sensor ‘B’ and its wiring for any visible damage or corrosion. Testing the sensor’s resistance and checking the heat pump system for proper operation can help pinpoint the cause of the fault.
How to fix DTC P1D87 on BMW
Fixing DTC P1D87 on a BMW may involve replacing the heat pump pressure/temperature sensor ‘B’ if it is found to be faulty. Checking and repairing any damaged wiring in the sensor circuit is also crucial. Additionally, ensuring the heat pump system is functioning correctly, with proper refrigerant levels and compressor operation, can help resolve this fault code.
How to erase DTC P1D87 on BMW
To erase DTC P1D87 on a BMW, a diagnostic scan tool capable of clearing fault codes is needed. Once the underlying issue causing the fault code has been addressed and fixed, the technician can use the scan tool to clear the code from the vehicle’s memory. This will reset the system and turn off the warning light on the dashboard.
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.