AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal

AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal A4 1995 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/996/w960_996-0.png AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal

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AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal 24-145
 
     
Additional signals 
     
Signal from A/C compressor, checking
 
     
Required special tools and test equipment  
     
VAG 1551 or VAG 1552 Scan Tool (ST) with 
VAG 1551/3 adapter cab

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AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal Code (DTC) memory   Page 01
-15
 . 
Pa
ge 2 of 29 Additional si
gnals
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU02.24.5

Page 3 of 29

AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal 24-146
      
Checking  
     
-  Connect VAG 1551 or VAG 1552 scan tool and 
press buttons -0- and -1- to insert "Engine 
Electronics" address word 01 (with engine 
running at idle)   Page 01
-7 . 
R

Page 4 of 29

AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal 24-147
      
-  Compare display with specified value in display 
field 4. 
  
Display fields  
  
1   2   3  
4  
Display group 50: Signals to Engine Control Module (ECM)  
Display   xxxx RPM   xxxx

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AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal At wide open throttle the A/C compressor is 
switched off by the Transmission Control 
Module (TCM) (kick down switch). 
Pa
ge 5 of 29 Additional si
gnals
11/19/2002 htt
p://127.0.0.1:8080/audi/servle

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AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal 24-148
      
Continuation  
      If the displayed values are NOT OK:  
     
-  Connect VAG 1598/22 test box to ECM harness 
connector  Page 01
-56
 . 
     
-  Check wiring for open circuit, short

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AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal Transmission 01V, Repair Group 01
   
     
- Check readiness code   Page 01-59
 . If 
Diagnostic Trouble Code (DTC) memory has 
been erased, or ECM was disconnected, 
generate new readiness code   Pa

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AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal 24-149
      
Vehicle speed signal, checking
 
     
Required special tools and test equipment  
     
VAG 1551 or VAG 1552 Scan Tool (ST) with 
VAG 1551/3 adapter cable 
     Multimeter US 1119 (Fluk

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AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal      
The speed signal is generated by the vehicle 
speed sensor (at the transmission), and 
processed at the speedometer/odometer in the 
instrument cluster. 
Pa
ge 9 of 29 Additional si
gnals
11/19/

Page 10 of 29

AUDI A4 1995 B5 / 1.G AEB Engine Additional Signal 24-150
      
Test procedure  
     
-  Connect VAG 1551 or VAG 1552 scan tool and 
press buttons -0- and -1- to insert "Engine 
Electronics" address word 01 (with engine 
running at idle)   Page 01
-
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