volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 5278 > < Diagram Information and Instructions|Page 5276
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Air Injection Control Valve: Testing and Inspection

 
Combination valve, checking 
Special tools and equipment 

^

V.A.G 1390 Hand vacuum pump

Checking conditions 

^

No code stored in Diagnostic Trouble Code (DTC) memory.

^

Perform Output Diagnostic Test Mode (DTM).

^

Vacuum lines and hose connections free of leaks.

^

Vacuum lines not blocked/kinked.

Checking sequence 

-

Pull vacuum hose off combination valve (arrow) and connect hand vacuum pump V.A.G 1390.

Note:  Do not use compressed air during the following check!

Diagram Information and Instructions|Page 5278 > < Diagram Information and Instructions|Page 5276