wiring AUDI A4 1999 B5 / 1.G AFC Engine Knock Sensors Checking Workshop Manual

AUDI A4 1999 B5 / 1.G AFC Engine Knock Sensors Checking Workshop Manual A4 1999 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1031/w960_1031-0.png AUDI A4 1999 B5 / 1.G AFC Engine Knock Sensors Checking Workshop Manual

Page 1 of 6

AUDI A4 1999 B5 / 1.G AFC Engine Knock Sensors Checking Workshop Manual 28-29
 
     
Knock sensors, checking 
     
Notes:  
     
To functionally check knock sensors   Repair 
Group 01, Read measuring value block, display 
group 015 and/or 016. 
     
Component location

Page 3 of 6

AUDI A4 1999 B5 / 1.G AFC Engine Knock Sensors Checking Workshop Manual 28-30
      
Checking wiring between knock sensor and 
ECM  
     
-  Connect VAG 1598/19 test box to ECM harness 
connector  page 01
-255
 . 
     
-  Check wiring for continuity or short between 
kn

Page 5 of 6

AUDI A4 1999 B5 / 1.G AFC Engine Knock Sensors Checking Workshop Manual 28-31
      
Knock Sensor (KS) 2 -G66- 
     
-  Check signal wire for continuity between 
harness connector terminal 2 (in engine 
compartment) and test box socket A15. 
     
  
Specified value: max