Toyota Land Cruiser 1988 Repair Manual page 250

IGNITION SYSTEM -On-Vehicle Inspection IG-5
SPARK TEST
i
BAD
CHECK CONNECTION OF IGNITION
COIL, IGNITER AND DISTRIBUTOR
CONNECTORS
!
OK
ON-VEHICLE INSPECTION
SPARK TEST
CHECK THAT SPARK OCCURS
(a) Disconnect high-tension cord from distributor.
(b) Hold the end approx. 12.5 mm (0.50 in.) from body
of vehicle.
(c) See if spark occurs while engine is being cranked.
NOTE: To prevent gasoline from being injected from
injectors during this test, crank the engine for no more
than 1-2 seconds at a time.
If the spark does not occur, perform the test as follows:
Connect securely.
BAD
CHECK RESISTANCE OF HIGH-TENSION Replace the cord(s).
CORDS (See page IG-6)
BAD
!
OK
CHECK POWER SUPPLY TO IGNITION
Check wiring between ignition switch
COIL AND IGNITER
to ignition coil and igniter.
1. Ignition switch turn to ON.
BAD
2. Check that there is battery voltage at
ignition coil positive ( +) terminal.
!
OK
CHECK RESISTANCE OF IGNITION COIL
Replace the ignition coil.
(See page IG-7)
BAD
!
OK
CHECK RESISTANCE OF SIGNAL GENE-
Replace the distributor housing
RATOR (PICKUP COIL) (See page IG-7)
BAD
assembly.
~
OK
CHECK AIR GAP OF DISTRIBUTOR
Replace the distributor housing
(See page IG-7)
BAD
assembly.
~
OK
TRY ANOTHER IGNITER