AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide A4 2000 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1048/w960_1048-0.png AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide
Trending: wiring, sensor, check engine, display, buttons

Page 11 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide 24-135
 
    
If wiring is OK:  -  Check wiring for short circuit between ECM/test box and 8-pin harness 
connector. 
 
Connector terminal 7 to ECM/test box socket 69
 Specified value:   
-  Reconnect

Page 12 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide 24-136
      
Throttle drive and angle sensor for 
throttle drive, checking
 
     
Note:  
     Throttle drive -G186- and angle sensor -1- for 
throttle drive -G187- are located in the throttle 
valv

Page 13 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide 24-137
      
Checking  
     
-  Connect VAG1551 or VAG1552 scan tool and 
press buttons -0- and -1- to insert "Engine 
Electronics" address word 01 (with engine 
running at idle)   page 01
-8 . 
Rap

Page 14 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide 24-138
 
  
Display fields  
  
1   2   3   4  
Display group 55: Idle control  
Display   xxx RPM   x.xx g/s   x.xx g/s   xxxx  
Indicates   Engine speed RPM  
(in steps of 10 RPM)  Regulating value-

Page 15 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide      
-  Press buttons -0- and -6- to select "End Output" 
function 06, and press -Q- button to confirm 
input. 
     
-  Switch ignition off.
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1

Page 16 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide 24-139
 Evaluation of display group 55  Display group: 
55  
  
  
Display fields: 
2  3  
Possible malfunction cause  
Corrective action  
above 1.39 g/s  
 
Increased load because of switched-
on co

Page 17 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide 24-140
 Explanation of 4-digit display  
Explanation when display field is = 0  
x  
x  
x  
x  
Display group 55  
         0   A/C compressor off (0 = A/C compressor off; 1 = A/C compressor on)

Page 18 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide 24-141
      
Continuation  
     
-  Switch ignition off.
     
-  Connect VAG1598/22 test box to ECM harness 
connector  page 01
-67
 . 
     
-  Switch ignition on.
     
-  With throttle valve in

Page 19 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide  
Connector terminal 8 to ECM/test box socket 74
 Specified value: max. 1.5 
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11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto

Page 20 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking User Guide 24-142
 
    
If wiring is OK:  -  Check wiring of 8-pin connector for short circuit between wires, 
according to wiring diagram. 
 
Connector terminal 1 to ECM/test box socket 59
 Connector terminal
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Trending: check engine, sensor, display, buttons, wiring