Structure and inner circuit
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 |
CONNECTOR 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 |