Check Diagnostic Socket - Volvo 240 1989 Service Manual

Checks
4
R
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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
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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.
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