Check Diagnostic Socket - Volvo 240 1989 Service Manual

Engine type b 230 f with lh-jetronic 2.4 fuel system
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Checks
4
R
<?=:)
V
Fuel
system
LH2.4
240
E4
Check diag
nostic socket
1.
Connect voltmeter between ground
and
no. 4
con­
nection on
con
trot unit
connector.
Reading
should
be
12
V.
II there is no voltage.
check
lead between
control
unit
connector and
tuse
no.
1 (30
strip)
in the
electric
dis
·
tribution unit.
2.
@
Turn on
ignition
.
Connect
selector cable
to position
2 on
diagnostic
socket.
..
,
.................
GN
-
58
<?=:)
V
3.
Connect voltmeter betweon ground
and
no
.
12
con ­
nection on
controlunilconnector.
Reading
should
be
12
V.
Derress
button on
diagnostic
socket
.
Reading
should
be 0
V.
II
there
is no
voltage
allhe
conlrol
unit. take reading
at diagnostic
socket connector.
II voltmeler reading remains at 12
V
when buNon is
depressed.
check
diagnostic
socket.
4.
Connect voltmeter
between
ground and
red -black
lead
011
diagnostic socket
connector.
Reading
shoutd
be 12
V.
~
V
39

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