wiring AUDI A4 1995 B5 / 1.G AEB Engine Throttle Valve Control Module And Checking
[x] Cancel search | Manufacturer: AUDI, Model Year: 1995, Model line: A4, Model: AUDI A4 1995 B5 / 1.GPages: 38, PDF Size: 0.12 MB
Page 1 of 38

24-99
 
     
Throttle valve control module, 
checking 
     
Note:  
     If the throttle valve control module -J338- is 
removed and installed, or replaced, adaptation of 
the throttle valve control module to the Motronic 
ECM is required   Page 24
-119
 . 
     
Required special tools and test equipment  
     
VAG 1551 or VAG 1552 Scan Tool (ST) with 
VAG 1551/3 adapter cable 
     VAG 1598/22 test box 
     Multimeter US 1119 (Fluke 83 or equivalent) 
     VW 1594 connector test kit 
     Wiring diagrams 
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Page 4 of 38

24-101
      
Throttle valve control module power 
supply, checking
 
    
If voltage is NOT OK:  -  Disconnect 8-pin harness connector from throttle valve control module 
-J338-. 
-  Connect multimeter US 1119 (Fluke 83 or equivalent) between harness 
connector terminals using adapter cables from VW 1594 connector test 
kit. 
-  Switch ignition on, and check voltage. Specified values:
 
Connector terminals 3 and 7 (Ground): 9.0-14.5 volts
 Connector terminals 4 and 7 (Ground): 4.0-6.0 volts
-  Switch ignition off.
-  Connect VAG 1598/22 test box   Page 01
-56
 .
    
-  Check wiring for open circuit between ECM/test box and 8-pin harness 
connector. 
 
Connector terminal 3 to ECM/test box socket 69
 Connector terminal 4 to ECM/test box socket 62
 Connector terminal 7 to ECM/test box socket 67
 Specified value: max. 1.5 
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24-102
      
-  Check wiring for short circuit between ECM/test 
box and 8-pin harness connector. 
     
 
Connector terminal 7 to ECM/test box 
socket 69 
     
 Connector terminal 7 to ECM/test box 
socket 62 
     
 Connector terminal 4 to ECM/test box 
socket 67 
     
 Specified value: 
     
-  Reconnect throttle valve control module harness 
connector. 
      If wiring is OK:  
     
-  Replace Motronic Engine Control Module (ECM) 
-J220-  Page 01
-57
 . 
     
-  Carry out adaptation of throttle valve control 
module to ECM   Page 24
-119
 . 
     
- 
Check readiness code   Page 01
-59
 . If 
Diagnostic Trouble Code (DTC) memory has 
been erased, or ECM was disconnected, 
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24-105
      
Continuation  
     
-  Switch ignition off.
     
-  Connect VAG 1598/22 test box to ECM harness 
connector  Page 01
-56
 . 
     
-  Connect multimeter US1119 (Fluke 83 or 
similar) and check resistance between test box 
sockets 67and 69. 
     
  
Specified value: max. 5.0      
- 
Open throttle slowly. Specified value:       If resistance is NOT OK:  
    
-  Disconnect 8-pin harness connector for throttle valve control module -
J338-. 
-  Check wiring for open circuit between ECM/test box and 8-pin harness 
connector. 
 
Connector terminal 3 to ECM/test box socket 69
 Connector terminal 7 to ECM/test box socket 67
 Specified value: max. 1.5 
-  Check wiring for short circuit between ECM/test box and 8-pin harness 
connector. 
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Page 13 of 38

24-106
      
-  Reconnect throttle valve control module harness 
connector. 
      If wiring is OK:  
     
-  Replace throttle valve control module -J338-.
     
-  Carry out adaptation of throttle valve control 
module to ECM   Page 24
-119
 . 
     
- Check readiness code   Page 01
-59
 . If 
Diagnostic Trouble Code (DTC) memory has 
been erased, or ECM was disconnected, 
generate new readiness code   Page 01
-62
 . 
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Page 19 of 38

24-111
      
Continuation  
     
-  Switch ignition off.
     
-  Connect VAG 1598/22 test box to ECM harness 
connector  Page 01
-56
 . 
     
-  Switch ignition on.
     
-  With throttle valve in closed throttle position, 
connect multimeter US 1119 (Fluke 83 or 
equivalent), and check resistance between 
ECM/test box sockets 59 and 66. 
     
  
Specified value: 3-200         If resistance is NOT OK:  
     
-  Disconnect 8-pin harness connector from throttle 
valve control module -J338-. 
    
-  Check wiring for open circuit between ECM/test box and 8-pin throttle 
valve control module harness connector. 
 
Connector terminal 1 to ECM/test box socket 66
 Connector terminal 2 to ECM/test box socket 59
 Connector terminal 7 to ECM/test box socket 67
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Page 21 of 38

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-  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 1 to ECM/test box 
socket 74 
     
 Connector terminal 1 to ECM/test box 
socket 67 
     
 Connector terminal 2 to ECM/test box 
socket 67 
     
 Connector terminal 2 to ECM/test box 
socket 74 
     
 Connector terminal 7 to ECM/test box 
socket 74 
     
 Specified value: 
      If wiring is OK:  
     
-  Carry out adaptation of throttle valve control 
module to ECM   Page 24
-119
 . 
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Page 28 of 38

Display group: 3  
  
  
Display field: 3  
Possible cause  
Corrective action  
0.0   
 Open circuit in wiring- Check wiring   Page 24
-116
99.0   
 Short circuit to ground (GND)  
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Page 29 of 38

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Checking wiring  
     
-  Connect VAG 1598/22 test box to ECM harness 
connector  Page 01
-56
 . 
     
-  Connect multimeter US 1119 (Fluke 83 or 
equivalent), using adapter cables from VW 1594 
connector test kit. 
     
-  Measure resistance to check for short circuit 
between test box sockets 2 (Ground) and 75 
(signal wire). 
     
 
Test box sockets 2 and 75
     
 Specified value: 
     
-  Switch multimeter to voltage (20 VDC) 
measuring range. 
     
-  Switch ignition on.
     
-  Check wiring for short circuit to B+.
     
   Note voltage reading if applicable (if not 0 
volts). 
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Page 31 of 38

24-117
      
Continuation (with measured voltage)  
    
If measured voltage was approx. 5 volts:  
If measured voltage was approx. battery positive voltage (B+):  -  Disconnect 8-pin harness connector from throttle valve control module 
-J338-. 
-  Connect multimeter US 1119 (Fluke 83 or equivalent), using adapter 
cables from VW 1594 connector test kit. 
-  Measure resistance to check for short circuit between test box sockets 
62 (power supply) and 75 (signal wire). 
 
Test box sockets 62 and 75
 Specified value:   
-  Check wiring at 8-pin connector, terminal 5 for short circuit to battery 
B+. 
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e=re
pair&id=AUDI.B5.FU02.24.2