AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking

AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking A6 2000 C5 / 2.G AUDI AUDI https://www.carmanualsonline.info/img/6/1067/w960_1067-0.png AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking
Trending: catalytic converter, check engine, air condition, buttons, display

Page 21 of 63

AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking 24-94
      
Test sequence  
     
-  Connect VAS5051 tester or VAG1551 scan tool 
and select the control module for engine 
electronics using "address word" 01   Page 01
-
9 . 
     
   Engine must r

Page 22 of 63

AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking 24-95
 
  
Display fields  
  
1   2   3   4  
Display group 034: Oxygen sensor aging diagnostic, oxygen sensor before catalytic converter (bank 1)  
Display  xxxx/min  
xxx C  
x.x s  
---  
Indicate

Page 23 of 63

AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking      
- Press -C- button.Basic Settin
g 
Q
Input display group number XXX
    
When indicated on display:  
Pa
ge 23 of 63 Ox
yg
en sensor control, checkin
g
11/23/2002 htt
p://127.0.0.1:8080/audi/ser

Page 24 of 63

AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking 24-96
      
-  Press buttons -0-, -3- and -5- to select "display 
group number 035" and press -Q- button to 
confirm input. System in Basic Setting 35  
1 
2 
3 
4
    
When indicated on display:  
N

Page 25 of 63

AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking before catalytic converter (bank 1)  
Pa
ge 25 of 63 Ox
yg
en sensor control, checkin
g
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.24.3

Page 26 of 63

AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking 24-97
 
  
Oxygen sensor and oxygen sensor control 
behind catalytic converter, checking
 
Special Tools and Equipment  
 
VAG1526A
 VAG1594A
 VAG1598/31
 VAG1788/10 RPM adjuster
 VAS5051 with VAG5051

Page 27 of 63

AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking 24-98
      
Notes:  
     
The oxygen sensor control behind catalytic 
converter overrules the oxygen sensor control 
before catalytic converter. It serves as a 
corrective control. 
    
Test requir

Page 28 of 63

AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking 24-99
 
Rapid data transfer  
HELP
Select function XX
    
When indicated on display:  
Note:  
During basic setting, the Evaporative Emission (EVAP) canister purge 
regulator valve (EVAP valve -N80-)

Page 29 of 63

AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking 24-100
      
- Press -C- button.
     
-  Let engine continue to idle Basic Setting 
Q
Input displa
y group number XXX
    
When indicated on display:  
-  Press buttons -0-, -3- and -0- to select "d

Page 30 of 63

AUDI A6 2000 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking 24-101
 
  
Display fields  
  
1   2   3   4  
Display group 030: Oxygen sensor status with engine at idle  
Display   X X X  
X X X   X X X  
X X X  
Indicated   Oxygen sensor status, bank 1, 
senso
Trending: buttons, check engine, air condition, catalytic converter, display