Intake Manifold Flap Change-over Valve N239 , checking: Notes

Special tools, testers and auxiliary items required 

Fig 1: Hand Vacuum Pump V.A.G 1390

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Hand vacuum pump VAG1390
• Test box VAG1598/31
• Hand multimeter VAG1526A or Multimeter VAG1715
• Adapter set VAG1594

• Wiring diagram