check engine light AUDI A4 1998 B5 / 1.G AWM Engine Charge Pressure Leak Test Workshop Manual

AUDI A4 1998 B5 / 1.G AWM Engine Charge Pressure Leak Test Workshop Manual A4 1998 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/937/w960_937-0.png AUDI A4 1998 B5 / 1.G AWM Engine Charge Pressure Leak Test Workshop Manual

Page 22 of 34

AUDI A4 1998 B5 / 1.G AWM Engine Charge Pressure Leak Test Workshop Manual 21-32
       If the LED lamp does not flash or if it lights up 
continuously:  
     
-  Connect VAG 1598/31 test box to wiring 
harness leading to engine control module; 
engine control module should

Page 26 of 34

AUDI A4 1998 B5 / 1.G AWM Engine Charge Pressure Leak Test Workshop Manual 21-36
      
Checking power supply  
     
Test requirements:  
     
Fuse for wastegate bypass regulator valve 
OK 
     
       Electrical Wiring Diagrams, Troubleshooting & 
Component Locations bin

Page 29 of 34

AUDI A4 1998 B5 / 1.G AWM Engine Charge Pressure Leak Test Workshop Manual 21-38
       If the LED lamp does not flash or if it lights up 
continuously:  
     
-  Connect VAG 1598/31 test box to wiring 
harness leading to engine control module; 
engine control module should