Page 24 of 27
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Example 1:
From the DTCs stored in the memories, you have determined that control
module 1 is not communicating with control modules 2 and 3.
Electrical Wiring Diagrams, Troubleshooting & Component Locations Control module
DTCs stored in DTC memories:
1
Missing signal from control module 2Missing signal from control module 3
2 Missing signal from control module 1
3 Missing signal from control module 1
- Switch ignition off.
- Disconnect control modules connected across bus wires and check
bus wires for an open circuit. - Replace control module 1 if no malfunctions can be found in bus wires.
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play?action=Goto&t
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pair&id=AUDI.B5.FU06.24.5
Page 25 of 27
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Example 2:
From the DTCs stored in the memories, you have determined that control
module 2 is not communicating with control modules 1 and 3.
Electrical Wiring Diagrams, Troubleshooting & Component Locations Control module
DTCs stored in DTC memories:
1
Missing signal from control module 2
2 Missing signal from control module 1Missing signal from control module 3
3 Missing signal from control module 2
- Switch ignition off.
- Disconnect control modules connected across bus wires and check
bus wires for an open circuit. - Replace control module 2 if no malfunctions can be found in bus wires.
Pa
ge 25 of 27 Additional si
gnals, checkin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.24.5
Page 26 of 27
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Example 3:
Using the DTCs stored in the memories, you
have determined that none of the control
modules are sending or receiving signals.
Control
module
DTCs stored in DTC
memories:
1
Powertrain databus faulty
2 Powertrain databus faulty
3 Powertrain databus faulty
- Switch ignition off.
Electrical Wiring Diagrams, Troubleshooting & Component Locations - Disconnect control modules connected across bus wires and check
bus wires for a short circuit to B+ and Ground (GND).
Pa
ge 26 of 27 Additional si
gnals, checkin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.24.5
