wiring AUDI A4 1997 B5 / 1.G APB Engine Additional Signals Checking User Guide

AUDI A4 1997 B5 / 1.G APB Engine Additional Signals Checking User Guide A4 1997 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1049/w960_1049-0.png AUDI A4 1997 B5 / 1.G APB Engine Additional Signals Checking User Guide

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AUDI A4 1997 B5 / 1.G APB Engine Additional Signals Checking User Guide 24-196
      
Crash signal, checking
 
      The Engine Control Module (ECM) receives the 
crash signal ("Crash shut-down activated") from 
the airbag control module.  
      If the airbag control mod

Page 23 of 37

AUDI A4 1997 B5 / 1.G APB Engine Additional Signals Checking User Guide 24-197
       Test the following wiring connections for open 
circuit and/or short to B+ or Ground (GND) and 
open circuit.  
     
VAG1598/31 test 
box, socket  
Airbag control module, 
contact  
67

Page 24 of 37

AUDI A4 1997 B5 / 1.G APB Engine Additional Signals Checking User Guide 24-198
      
Signal for rough road recognition from 
ABS/EDL control module, checking
 
     
Note:  
     
The ABS/EDL control module generates the 
rough road signal if it recognizes wheel spin on

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Test conditions 
     
Control module coding OK   Page 01
-93
 . 
     
Test sequence 
     
-  Connect VAG1598/31 test box to wiring harness 
for engine control module. Do not connect t

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AUDI A4 1997 B5 / 1.G APB Engine Additional Signals Checking User Guide 24-206
       If the correct control modules are installed:  
     
-  Check to be sure the multi-pin connectors of the 
control modules are securely connected. 
      If multi-pin connectors are prop

Page 33 of 37

AUDI A4 1997 B5 / 1.G APB Engine Additional Signals Checking User Guide 24-207
 
    
Example 1 
From the malfunctions present in the DTC memories, you can see that 
control module 1 has no connection to control modules 2 or 3.  
 Electrical Wiring Diagrams, Troubleshooti

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AUDI A4 1997 B5 / 1.G APB Engine Additional Signals Checking User Guide 24-208
 
    
Example 2 
From the malfunctions present in the DTC memories, you can see that 
control module 2 has no connection to control modules 1 or 3.  
 Electrical Wiring Diagrams, Troubleshooti

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AUDI A4 1997 B5 / 1.G APB Engine Additional Signals Checking User Guide 24-209
      
Example 3 
      From the malfunctions present in the DTC 
memories, you can see that none of the control 
modules are able to transmit or receive signals.  
     
Control 
module  
Stor
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