Structure and inner electrical connection
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
The fuel pressure and temperature sensor is connected by a 4-pin plug connection.
The fuel pressure sensor receives its ground and a supply voltage of 5 volts from the DDE control unit. The resistance of the fuel temperature sensor is part of a voltage divider circuit that is supplied with 5 volts by the DDE control unit.
| Item | Explanation |
|---|---|
| 1 | Fuel pressure sensor |
| 2 | Fuel temperature sensor |
PIN REFERENCE
| Pin | Explanation |
|---|---|
| 5 V | 5 Volts, supply voltage |
| SIG1 | Fuel pressure sensor signal |
| SIG2 | Fuel pressure sensor signal |
| Terminal 31E | Terminal 31, electronics earth (ground) both sensors |