Leak Detection Pump (LDP), checking: Notes

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Recommended special tools and equipment

V.A.G 1526 multimeter or V.A.G 1715 multimeter
V.A.G 1594 connector test kit
Wiring diagram

Test requirements

Fig 1: Identifying Main Fuse Panel

Courtesy of VOLKSWAGEN UNITED STATES, INC.

The respective fuses of Leak Detection Pump (LDP) -V144- must be OK:

Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations

Ground (GND) connections between engine and chassis must be OK.
Ignition switched off.