24-69
      
Checking triggering  
    
If voltage tester does not flash, or lights up constantly:  
If voltage tester lights up constantly:  
If voltage tester does not flash:  -  Connect VAG 1527B voltage tester between EGR vacuum regulator 
solenoid valve connector terminals 1 (B+) and 2 using jumper wires 
from connector test kit VW 1594. 
-  Use scan tool "Output Diagnostic Test Mode" function 03 to trigger 
EGR vacuum regulator solenoid valve   page 01
-145
 . 
Voltage tester must flash 
-  Connect VAG 1598/19 test box to ECM wiring harness   page 01
-
255
 . 
-  Check wiring for short to Ground (GND) between valve connector 
terminal 2 and test box socket E1. 
-  Check wiring for continuity and short to B+ between valve connector 
terminal 2 and test box socket E1. 
  
Specified value: max. 1.0 ohm ( )
    
If wiring is OK:  -  If necessary, eliminate short or open circuit in wiring.
Pa
ge 3 of 4 Exhaust Gas Recirculation 
(EGR
) vacuum re
gulator solenoid valve, checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.24.18