AUDI A8 1998 D2 / 1.G AHA Engine Motronic Ignition System Owner's Guide

AUDI A8 1998 D2 / 1.G AHA Engine Motronic Ignition System Owner's Guide https://www.carmanualsonline.info/img/6/1044/w960_1044-0.png AUDI A8 1998 D2 / 1.G AHA Engine Motronic Ignition System Owner's Guide

Page 31 of 34

AUDI A8 1998 D2 / 1.G AHA Engine Motronic Ignition System Owners Guide 28-25
      
Checking signal for power output stage  
     
-  Remove connectors from all 6 injectors (DTC 
memory will have to be checked and erased 
later). 
     
-  Switch ignition on.
    
If LED

Page 32 of 34

AUDI A8 1998 D2 / 1.G AHA Engine Motronic Ignition System Owners Guide 28-26
       If LED does not flash:  
     
-  Connect VAG1598/22 test box to ECM harness 
connector  page 01
-67
 . 
    
If wiring is OK:  -  Check wiring between ECM/test box and 5-pin connector fo

Page 33 of 34

AUDI A8 1998 D2 / 1.G AHA Engine Motronic Ignition System Owners Guide 28-27
      
Checking ground for power output stage  
     
-  Disconnect 5-pin connector from ignition coils.
    
If LED does not light up:  
 Electrical Wiring Diagrams, Troubleshooting & Component

Page 34 of 34

AUDI A8 1998 D2 / 1.G AHA Engine Motronic Ignition System Owners Guide 28-28
      
Checking voltage supply of ignition coils  
     
Test requirement 
     
Fuse for ignition coils OK 
     
-  Disconnect 5-pin connector from ignition coils.
     
-  Switch ignition on.
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