buttons AUDI A4 1999 B5 / 1.G APB Engine Additional Signals Checking Workshop Manual

AUDI A4 1999 B5 / 1.G APB Engine Additional Signals Checking Workshop Manual A4 1999 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1049/w960_1049-0.png AUDI A4 1999 B5 / 1.G APB Engine Additional Signals Checking Workshop Manual

Page 8 of 37

AUDI A4 1999 B5 / 1.G APB Engine Additional Signals Checking Workshop Manual 24-185
      
Brake light switch -F and brake pedal 
switch -F47, checking 
 
     
-  Connect vehicle diagnostic, testing and 
information system VAS 5051 or VAG1551 scan 
tool and select engine elec

Page 15 of 37

AUDI A4 1999 B5 / 1.G APB Engine Additional Signals Checking Workshop Manual 24-191
      
Clutch Vacuum Vent Valve Switch -F36, 
checking
 
     
Note:  
     This signal is used to avoid RPM over-oscillation 
and load change impacts when changing gears 
and is also used for

Page 28 of 37

AUDI A4 1999 B5 / 1.G APB Engine Additional Signals Checking Workshop Manual 24-202
      
Checking bus system  
      The principle of the test is independent of the 
number of control modules/systems connected to 
the CAN-bus.  
      The DTC table suggested checking the dat