24-132
       If LED does not light up:  
     
-  Check wire connection from terminal 1 to Fuel 
Pump (FP) relay via fuse for open circuit. 
     
       Electrical Wiring Diagrams, Troubleshooting & 
Component Locations binder        
-  Repair open circuit if necessary.
      If LED lights up:  
     
- Checking activation.
     
Checking activation  
    
-  Connect VAG1527B voltage tester to connector terminals 1 (B+) and 2.
-  Initiate output DTM and activate Evaporative Emission (EVAP) canister 
purge regulator valve -N80-   Page 01
-56
 . 
 
LED must blink.
Pa
ge 6 of 7 Tank ventilation, checkin
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11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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e=re
pair&id=AUDI.B5.FU05.24.4