Check Ignition Lock Voltage - Volvo 240 1989 Service Manual

Checks
Fuel system L H2.4 - 240
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0=:0
V
5.
Connect ohm meter between ground and brown ·
black lead in diagnostic socket connector. Reading
should be approx.O
n.
Turn off ignition.
6.
Connect ohm meter between diagnostic socket se·
lector cable and pin under selector buHon. Reading
should be ~ resistance.
Oepress button . Reading should be 0
n .
7.
Connect diode tester between diagnostic socket tight
diode and selector cable.
Connect red test pin on diode tester to pin under tight
diode and black test pin to selector cable .
A reading on the diode tester indicates correct light
diode function .
With no reading, replace diagnostic socket .
£5
Check ignition lock voltage
;
Turn on ignition .
. -&
CO
~
ct voltmeter between ground and no. 35 con­
nection on control unit connector. Reading should be
12 V.
Check that voltage exists when starter motor is run ­
ning.
@
Turn off ignition .
40