AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual A6 1997 C5 / 2.G AUDI AUDI https://www.carmanualsonline.info/img/6/1062/w960_1062-0.png AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual
Trending: lock, wiring, display, checking oil, buttons, check engine, fuel pressure

Page 41 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual 28-36
 
  
Display fields  
  
1   2   3   4  
Display group 021: Ignition -knock control in driving operation  
Display  
xx.x  KW  
xx.x  KW  
  
  
Indicated  
Ignition angle retardation cylinder 5

Page 42 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual 28-37
 
  
Display fields  
  
1   2   3   4  
Display group 022: Ignition -knock control in driving operation  
Display   xxxx/min   xxx.x %  
xx.x  KW  
xx.x  KW  
Indicated  Engine speed 
(RPM)  En

Page 43 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual 28-38
 
  
Display fields  
  
1   2   3   4  
Display group 023: Ignition -knock control in driving operation  
Display   xxxx/min   xxx.x %  
xx.x  KW  
xx.x  KW  
Indicated  Engine speed 
(RPM)  En

Page 44 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual 28-39
 
  
Display fields  
  
1   2   3   4  
Display group 024: Ignition -knock control in driving operation  
Display   xxxx/min   xxx.x %  
xx.x  KW  
xx.x  KW  
Indicated  Engine speed 
(RPM)  En

Page 45 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual 28-40
 Evaluation display groups 020/021/022/023/024 - ignition angle retardation  
Indicated on display  
Possible cause  
Corrective action  
All cylinders more than 12  KW  
Knock sensor faulty- Ch

Page 46 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual 28-41
 
  
Knock sensors, checking
 
Special Tools and Equipment  
 
VAG1526A
 VAG1594A
 VAG1598/31
Pa
ge 46 of 65 I
gnition s
ystem, checkin
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11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?

Page 47 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual 28-42
       Component location   Overview of Component 
Locations, page   Page 24
-5   
     
Notes:  
     
Knock Sensor (KS) 1 -G61- and Knock Sensor 
(KS) 2 -G66- themselves cannot be electrically

Page 48 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual 28-43
 
    
Check wires from knock sensors to Engine Control Module (ECM).   -  Check all three terminals at knock sensor connector for short circuit to 
each other (terminal 1+2, 1+3, 2+3). 
 
Speci

Page 49 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual 28-44
 
    
Knock Sensor (KS) 2 -G66- Harness connector  
Terminal  
VAG1598/31 test box  
Socket  
1 (signal)   107  
2 (Ground -GND-)   99  
3 (shielding)   108  
-  Repair open circuit or short ci

Page 50 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Service Manual 28-45
 
  
Camshaft Position (CMP) sensor, 
checking
 
Special Tools and Equipment  
 
VAG1526A
 VAG1527B
 VAG1594A
 VAG1598/31
Pa
ge 50 of 65 I
gnition s
ystem, checkin
g
11/23/2002 htt
p://127.0.0.1
Trending: check engine light, wiring, buttons, lock, checking oil, check engine, fuel pressure