48
5.
Turn on the lamps, windshield wipers, fans and so on to increase the loads of the electronic
systems with the voltage readings being no less than 13.0 V.
6.
If the readings in Steps 3, 4, and 5 are normal, the charging system is also normal. If the
readings in Steps 3, 4, and 5 are beyond the limits or inconsistent with those in the operation manual,
check the current ranges of the conveying belt, regulator, AC generator, connector and open-circuit
AC generator. If any further diagnosis is required, refer to the appropriate automotive manuals.
Ignition Coil Testing
(1)
Before the operation, cool the engine and cut off the ignition coil.
(2)
Set the rotary switch to the
. Insert the red test lead into the
terminal and the black one into
the
COM
terminal. Test the primary coil of the ignition coil.
(3)
Short circuit the red and black test lead probes. Their short circuit resistance should be less
than 0.5
. If it is more, check the test lead to see if it is loose or damaged. If it is damaged,
replace it with a new one.
(4)
Connect the red test lead probe to the primary “+” pole of the ignition coil and the black one to
the primary “-” pole of the coil. (see figure 16.)
See the detailed positions in various kinds of
automotive manuals.
72-9280: OPERATING MANUAL
