Structure and inner circuit
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 diagnosis module for tank leakage consists of an electrically driven overpressure pump (leakage diagnosis pump) as well as an electromagnetic changeover valve and reference bore hole. In addition, a heating element is integrated in the DMTL to remove any condensate that might be present.
| Index | Explanation |
|---|---|
| 1 | Changeover valve |
| 2 | Drive of the leak diagnosis pump |
| 3 | DMTL heater |
PIN REFERENCE
| Pin | Explanation |
|---|---|
| Kl. 30B | Terminal 30B, power supply |
| SIG1 | Activation of changeover valve |
| SIG2 | Actuation of leak diagnosis pump |
| SIG3 | Activation of heater |