Service & Repair Manual

28-43
Check wires from knock sensors to Engine Control Module (ECM).
- Check all three terminals at knock sensor connector for short circuit to
each other (terminal 1+2, 1+3, 2+3).
Specification: (no continuity) - the wires must not have any
connection to each other.
- If there is no connection , replace knock sensor.
- If no short circuit is detected, check knock sensor wires:
- Connect VAG1598/31 test box at wiring harness to ECM, do not
connect ECM Page 24-17 .
- Check the following wire connections for open circuit and short circuit
to Ground (GND) and B+:
Knock Sensor (KS) 1 -G61-
Harness connector
Terminal
VAG1598/31 test box
Socket
1 (signal) 106
2 (Ground -GND-) 99
3 (shielding) 108
Pa
g
e 48 of 65I
g
nition s
y
stem, checkin
g
11/23/2002htt
p
://127.0.0.1:8080/audi/servlet/Dis
p
la
y
?action=Goto&t
yp
e=re
p
air&id=AUDI.B5.FU05.28.1