Toyota 4-Runner 1985 Repair Manual page 293

IG-8
(+)
(+)
IGNITION SYSTEM - On-Vehicle Inspection
(+)
Dry Cell Battery
IGOOSO
(-)
INSPECTION OF IGNITER
1. TURN IGNITION SWITCH ON
2. CHECK POWER SOURCE LINE VOLTAGE
3.
Using a voltmeter, connect the positive
(+)
probe to the
ignition coil positive (
+ )
terminal and the negative (-) pro-
be to body ground.
Voltage: Approx. 12V
CHECK POWER TRANSISTOR IN IGNITER
(a) Using a voltmeter, connect the positive
(+)
probe to
the ignition coil negative (-) terminal and the negative
(-) probe to body ground.
Voltage: Approx. 12V
(b) Unplug the wiring connector from the distributor.
(c) Using a dry cell battery (1.5V), connect the positive
( + )
pole of the battery to the pink wire terminal and
the negative (-) pole to the white wire terminal.
CAUTION: Do not apply voltage more than 5 seconds to
avoid destroying the power transistor in the igniter.
(d) Using a voltmeter, connect the positive
(+ )
probe to
the ignition coil negative (-) terminal and the negative
(-) probe to the body ground.
(e)
Check the voltage reading.
Voltage: 5 - 8V
If a problem is found, replace the igniter.
4. TURN IGNITION SWITCH OFF
5. REMOVE TEST EQUIPMENT AND RECONNECT WIRING