oil AUDI A4 1996 B5 / 1.G AFC Engine Ignition System Servising Workshop Manual

28-7


Ignition system, servicing
1 -
Engine Control Module (ECM) -J192-
2 -
ECM signal wires
4-pin, light-brown
3 -
Power output stage -N122- For ignition coils
4 -
Ignition coil primary connections 3-pin, dark brown
5 -
Harness connector 3-pinFor Knock Sensor (KS) 2 -G66-
6 -
Camshaft Position (CMP) sensor -G40-
7 -
Engine speed (RPM) sensor -G28-
8 -
Crankshaft Position (CKP) sensor -G4-
9 -
Knock Sensor (KS) 2 -G66-
10 -
Ignition coils 1, 2 and 3; -N-, -N128- and -
N158-
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28-8


11 -
Knock Sensor (KS) 1 -G61-
12 -
Spark plug connector
13 -
Harness connector
3-pin, grayFor engine speed (RPM) sensor -G28-
14 -
Harness connector 3-pin, blackFor Crankshaft Position (CKP) sensor -G4-
15 -
Harness connector 3-pinFor Knock Sensor (KS) 1 -G61-
16 -
Harness connector 3-pin, white, voltage supplyFor ignition coils 1, 2 and 3, -N-, -N128-
and -N158-
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11/22/2002 htt
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28-9


17 -
To fuse for ignition coils
18 -
ECM connector E
12-pin, black
19 -
ECM connector A 24-pin, black
20 -
ECM connector B 24-pin, red
21 -
ECM connector C 24-pin, brown
22 -
ECM connector D 12-pin, brown
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BEFORE cranking the engine at starting RPM
(such as for compression testing) disable the
ignition and fuel injection systems:

Disconnect the ignition coil power output
stage.
Disconnect harness connectors from all six
fuel injectors.
After the work is completed, erase
Diagnostic Trouble Code (DTC) memory.
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ge 6 of 8 I
gnition s
ystem, servicin
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.28.2