170 Fault diagnosis
Diagnostic trouble code P0340 (contd.)
2~
2 Check the ignition discharge module's con-
·
nections
- Unplug the ignition discharge module's 1 Q-pin
connector.
-
Ignition· switch in ON position.
- Take voltage readings on the female connector
sockets
pin 8 to battery negative (8 -
+
pin 9 to battery negative (8 -
+
.
The readings obtained should be about 1
o
V.
Are the readings OK?
IYES
I
Change the spark plugs and continue with
point 3.
I
NO
I
Rectify the lead in question and proceed to
point 3.
Saab9000
==10V
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