AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking

AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking https://www.carmanualsonline.info/img/6/998/w960_998-0.png AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking

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AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking 28-17
 
     
Individual ignition coil system, 
checking 
     
Ignition coils, checking
 
     
Notes:  
     
Measuring the primary resistance of the ignition 
coils is normally not necessary for th

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AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking      
Checking  
     
-  Check DTC memory   Page 01
-15
 .
     
   There must be no malfunctions stored
     
  -  If DTC memory is not clear, make necessary 
repairs and erase DTC memory, stop engi

Page 3 of 11

AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking 28-18
      
-  By briefly disconnecting fuel injector connectors 
with engine running, check which cylinder is 
misfiring, or not firing at all. 
     
Note:  
     A misfiring cylinder can also be i

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AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking coil. 
    
-  If original cylinder still misfires, check secondary circuit ground 
connection for open circuit between coil connector terminal 4a and 
engine Ground. 
-  If Ground connection is OK, c

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AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking 28-19
      
Wiring for primary coil and power 
supply, checking
 
     
Required special tools and test equipment  
     
VAG 1527B LED voltage tester 
     VW 1594 connector test kit 
     Wiring di

Page 6 of 11

AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking The power supply for the primary circuit is measured via the fuse and 
primary coil of the ignition coil. 
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gnition coil s
ystem, checkin
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11/19/2002 htt
p://127.0.0.1:8080/

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AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking 28-20
       If the LED in the tester does not light up:  
    
-  Check wiring for open circuits between power output stage and 
terminal 1 at each coil connector, according to table. 
  
Specified v

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AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking 28-21
      
Power output stage for ignition coils, 
checking
 
     
Required special tools and test equipment  
     
VAG 1598/22 test box 
     Multimeter US 1119 (Fluke 83 or equivalent) 
     VAG

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AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking 28-22
      
Checking signal for power output stage  
     
-  Disconnect 5-pin harness connector from power 
output stage. 
    
If the LED in the tester does not blink:  -  Connect VAG 1527B LED vol

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AUDI A6 1996 C5 / 2.G AEB Engine Ignition Coil System Checking 28-23
       If the wiring is OK:  
    
If the wiring is OK, but the LED in the tester did not blink:  -  Check for open circuit between 5-pin connector terminal 3 and engine 
Ground. 
  
Specified v
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