AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owner's Manual

AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owner's Manual A4 2000 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1057/w960_1057-0.png AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owner's Manual
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Page 21 of 44

AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owners Manual 24-181
       If specified values are not obtained:  
     
-  Check adjustment of switch or
     
-  Replace brake light switch / brake pedal 
switch. 
      If specified values are obtained:

Page 22 of 44

AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owners Manual 24-182
       If LED does not light up:  
     
-  Check wire connection from terminal 1 or 3 of 
connector for open circuit and short circuit to 
Ground (GND): 
     
       Electrical Wiring Diagram

Page 23 of 44

AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owners Manual      
-  Repair open circuit or short circuit if 
necessary. 
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play?action=Goto&t
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pair&id=AUDI.B5

Page 24 of 44

AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owners Manual 24-183
      
Clutch vacuum vent valve switch -F36-, 
checking
 
     
Note:  
     This signal helps prevent excessive RPM 
oscillations and tip-in shocks when clutch is 
disengaged and is required f

Page 25 of 44

AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owners Manual  
1 
2 
3 
4
-  Check Clutch Pedal Position (CPP) switch in display field 2.
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p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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Page 26 of 44

AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owners Manual 24-184
 
  
Display fields  
  
1   2   3   4  
Display group 066: Signals to Engine Control Module (ECM)  
Display  xxx km/h  
XXXX  xxx km/h  XXXX  
Indicated  ACTUAL speed  
Switch positions   SPEC

Page 27 of 44

AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owners Manual 24-185
       If indications do not resemble description:  
     
Check switch  
     
-  Remove driver-side storage compartment.
     
       Repair Manual, Body
-Interior, Repair Group 
68; Instrume

Page 28 of 44

AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owners Manual       If specified value is not obtained:  
     
-  Check adjustment of switch or
     
-  Replace Clutch Pedal Position (CPP) switch.
Pa
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p://

Page 29 of 44

AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owners Manual 24-186
       If specified value is obtained:  
     
Checking voltage supply  
    
If LED does not light up:  
 Electrical Wiring Diagrams, Troubleshooting & Component Locations 
binder    -  Connec

Page 30 of 44

AUDI A4 2000 B5 / 1.G ATQ Engine Additional Signals Testing Owners Manual 24-187
       If LED lights up:  
     
Checking activation  
     
-  Connect VAG1598/31 test box at wiring harness 
to ECM, do not connect ECM   Page 24
-17
 . 
    
-  Check the following wire conn
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