AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owner's Manual

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owner's Manual 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 Owner's Manual
Trending: display, check engine, buttons, sensor, wiring

Page 21 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owners Manual 24-143
      
Throttle Position (TP) sensor, checking
 
     
Note:  
     The Throttle Position (TP) sensor -G69- is 
located inside the throttle valve control module -
J338-. 
     
Test conditions

Page 22 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owners Manual Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
-  Press buttons -0- and -8- to select "Read Measuring Value Block" 
function 08, and press -Q- button to confirm input. 
Read

Page 23 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owners Manual 24-144
      
-  Press buttons -0-, -0- and -3- to input display 
group number 3 (003), and press -Q- button to 
confirm input. Read Measuring Value Block 3 1 2 3 4 
    
Indicated on display (1-4 = d

Page 24 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owners Manual - 
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Page 25 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owners Manual 24-145
      
-  Press buttons -0- and -6- to select "End Output" 
function 06, and press -Q- button to confirm 
input. 
     
-  Switch ignition off.
     
Note:  
     The values displayed in displa

Page 26 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owners Manual 24-146
 Evaluation of display group 3  Display 
group: 3  
  
  
Display field: 
3  
Possible malfunction cause  
Corrective action  
0.0   
 Open circuit or short circuit to B+ in signal wire between

Page 27 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owners Manual 24-147
      
Checking wiring  
     
-  Connect VAG1598/22 test box to ECM harness 
connector  page 01
-67
 . 
     
-  Connect multimeter US1119 (Fluke 83 or 
equivalent), using adapter cables from

Page 28 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owners Manual      
-  Switch ignition off.
     
-  Continue test, depending on whether or not 
voltage was measured   page 24
-148
 or page 
 Page 24
-149
 . 
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Page 29 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owners Manual 24-148
      
Continuation (with measured voltage)  
    
If measured voltage was approx. 5 volts:  
If measured voltage was approx. battery positive voltage (B+):  -  Disconnect 8-pin harness connect

Page 30 of 36

AUDI A4 2000 B5 / 1.G AHA Engine Throttle Valve Control Module Checking Owners Manual 24-149
      
Continuation (with no measured voltage)  
     
-  Disconnect 8-pin harness connector from throttle 
valve control module -J338-. 
    
If wiring is OK:  -  Check wiring for open circuit
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Trending: check engine, buttons, display, sensor, wiring