Brief component description

The diagnostic module for tank leaks consists of the following components:

• Electrical vane-type compressor: Generation of the required excess pressure in the fuel tank for tank leak diagnosis
• Electromagnetic changeover valve: Setting of different operating conditions
• Module housing with integrated reference leak of 0.5 mm
• Heating: Heating of the vane-type compressor to remove condensate

The function of the diagnostic module for tank leak detection is controlled with the DME.