lock AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual

AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual A4 1997 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1005/w960_1005-0.png AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual

Page 1 of 37

AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-88
 
     
Auxiliary input signals, 
checking 
     
Rear window defroster signal, checking
 
     
Requirement  
     
Engine Control Module (ECM) coding OK   
page 01
-247
 . 
     
Checking

Page 6 of 37

AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-91
      
Checking  
     
-  Start engine and let idle. 
     
-  Switch A/C on, push "AUTO" button, set 
temperature to "LO" and blower speed to "HI". 
     
A/C compressor symbol must light up a

Page 7 of 37

AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual Read measuring value block 4 1 2 3 4
    
Indicated on display; note value in display field 4  
CAUTION! 
Do not use the shift inputs (identified by an X) during the RPM 
increase check. 
-  Switch on

Page 18 of 37

AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-97
      
Vehicle speed signal, checking
 
     
Note:  
     The vehicle speed signal originates from the 
vehicle speed sensor (on the transmission) and 
is routed to the instrument cluster as we

Page 21 of 37

AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-99
      
Transmission Range (TR) selector lever 
position signal, checking
 
     
Note:  
     The Engine Control Module (ECM) uses this 
signal to recognize the transmission range 
selector leve

Page 23 of 37

AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-100
      
- 
Press  button.     
-  Select "End Output" function 06 and press -Q- 
button to confirm input. 
      If a display did NOT change, even though coding 
is OK:  
     
-  Connect VAG 15

Page 26 of 37

AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual -  Test drive and select "Read Measuring Value 
Block" function 08, display group 004   page 
01
-249
 . 
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11/22/2002 htt
p://127.0.0.1:8080/audi/se

Page 27 of 37

AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-102
 
Read measuring value block 4 1 2 3 4
    
Indicated on display; note display field 4  
Notes:  
Due to its short signal duration, shifting cannot always be observed on the 
VAG 1551 scan tool

Page 31 of 37

AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-106
      
-  Switch ignition ON.
     
-  Using VAG 1551 scan tool, select "Read 
Measuring Value Block" function 08, display 
group 027, display field 1   page 01
-249
 . 
Read measuring value bl

Page 33 of 37

AUDI A4 1997 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-108
      
-  Switch ignition ON.
     
-  Using VAG 1551 scan tool, select "Read 
Measuring Value Block" function 08, display 
group 027, display field 2   page 01
-249
 . 
Read measuring value bl