AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owner's Manual

AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owner's Manual A8 1999 D2 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1044/w960_1044-0.png AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owner's Manual
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Page 21 of 34

AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owners Manual      
- 
Press  button.      
-  Press buttons -0- and -6- to select "End Output" 
function 06, and press -Q- button to confirm 
input. 
     
- Check readiness code   page 01
-70
 .
     
   If Diagn

Page 22 of 34

AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owners Manual 28-18
       If displayed values are NOT OK:  
     
- Press -C- button.
     
-  Press buttons -0-, -1- and -5- to input display 
group number 15 (015), and press -Q- button to 
confirm input. Read M

Page 23 of 34

AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owners Manual 28-19
       If displayed values are OK:  
     
- Press -C- button.
     
-  Press buttons -0-, -1- and -6- to input display 
group number 16 (016), and press -Q- button to 
confirm input. Read Measu

Page 24 of 34

AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owners Manual 28-20
 Evaluation of display groups 15 and 16  Display groups: 15 
and 16  
  
  
Display fields: 2 and 
3  
Possible malfunction cause  
Corrective action  
greater than 5  
 
Ignition coil faulty
 S

Page 25 of 34

AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owners Manual 28-21
      
Ignition coils and power output stage, 
checking
 
     
Notes:  
     
The ignition coils and power output stage are 
one component. 
     Measuring the primary resistance of the ignitio

Page 26 of 34

AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owners Manual memory 
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Page 27 of 34

AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owners Manual 28-22
      
Checking  
     
-  Check DTC memory   page 01
-16
 .
     
There must be no malfunctions stored 
     
-  If DTC memory is not clear (malfunctions 
recognized): 
     
  -  Make necessar

Page 28 of 34

AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owners Manual that is OK. 
      If a different cylinder now misfires:  
     
-  Replace faulty spark plug.
      If the original cylinder misfires:  
     
-  Check ignition coil   page 28
-23
 .
Pa
ge 28 of 34 M

Page 29 of 34

AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owners Manual 28-23
      
Checking ignition coils -N-, -N128- and -N158-
  
     
-  Disconnect 5-pin connector from ignition coil 
assembly. 
     
-  Remove ignition wires from spark plugs.
    
If resistance is

Page 30 of 34

AUDI A8 1999 D2 / 1.G AHA Engine Motronic Ignition System Owners Manual 28-24
 
    
If resistance values are not as specified:  
If resistance values are OK:  -  Using multimeter and adapters from VAG1594 connector test kit, 
measure resistance across both ignition wire
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