Service manual

8-15
–+
ELEC
E
ELECTRICAL ANALYSIS
ELECTRICAL ANALYSIS
INSPECTION
CAUTION:
All measuring instruments should be han-
dled with special care or the correct mea-
surement is impossible.
On an instrument powered by dry batter-
ies, the latter should be checked for voltage
periodically and replaced, if necessary.
NOTE:
“ ” indicates the terminals between
which there is a continuity of electricity; i.e.,
a closed circuit at the respective switch
position.
Peak voltage measurement
NOTE:
● The coil output varies greatly at cranking
speed.
● Cranking a cold engine with the plugs in
and a weak battery does not enable
proper readings.
Low resistance measurement
When measuring a resistance of 10 Ω or
less using the digital tester, the correct
measurement cannot be obtained because
of the tester's internal resistance.
To obtain the correct value, subtract this
internal resistance from the displayed
measurement.
NOTE:
The internal resistance of the tester can be
obtained by connecting both of its termi-
nals.
Digital multimeter:
J-39299/90890-06752
Peak volt adapter:
YU-39991/90890-03169
Correct value =
Displayed measurement –
Internal resistance