Structure and inner circuit
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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 |