Toyota T100 1996 Service Manual page 1175

SPARK TEST
NO
CHECK CONNECTION OF IGNITION COIL AND
IGNITER
OK
CHECK RESISTANCE OF HIGH−TENSION
CORD (See step 2.)
Maximum resistance; 25 kΩ per cord
OK
CHECK POWER SUPPLY TO IGNITION COIL
AND IGNITER
1. Turn ignition switch to ON.
2. Check that there is battery voltage at
ignition coil positive (+) terminal.
OK
CHECK RESISTANSE OF IGNITION COIL
(See step 4.)
Resistance:
Primary 0.67 − 1.05 Ω
Secondary 9.3 − 16.0 kΩ
OK
CHECK RESISTANSE OF CAMSHAFT
POSITION SENSOR
(See step 5)
Resistance:
G and G 835 − 1,400 Ω
OK
CHECK RESISTANSE OF CRANKSHAFT
POSITION SENSOR
(See page IG−13)
Resistance:
NE and NE 1,630 − 2,740 Ω
OK
CHECK IGT SIGNAL FROM ECM
(See page DI−144)
TRY ANOTHER IGNITER
1996 TOYOTA T100 (RM449U)
IGNITION (5VZ−FE)
IGNITION SYSTEM
ON−VEHICLE INSPECTION
NOTICE:
"Cold" and "Hot" in the following sentences express the
temperature of the coils themselves. "Cold" is from −10°C
(14°F) to 50°C (122°F) and "Hot" is from
to 100°C (212°F).
1.
Check that the spark occurs.
NOTICE:
To prevent excess fuel being injected from the injectors
during this test, do not crank the engine for more 1 − 2 se-
conds at a time.
If the spark does not occur, perform the test as follows:
Cold Hot
0.85 − 1.23 Ω
11.7 − 18.8 kΩ
Cold Hot
1,060 − 1,645 Ω
Cold Hot
2,065 − 3,225 Ω
− IGNITION SYSTEM
INSPECT SPARK TEST
(1) Disconnect the high−tension cords from the spark
plug.
(2) Remove the spark plug.
(3) Install the spark plug to each high−tension cord.
(4) Ground the spark plug.
(5) Check if spark occurs while engine is being
cranked.
Connect securely.
BAD
Replace the cord(s).
BAD
Check wiring between ignition switch
to ignition coil and igniter.
BAD
Replace the ignition coil.
BAD
Replace the camshaft position sensor.
BAD
Replace the crankshaft position sensor.
BAD
Check wiring between ECM, distributor
BAD
and igniter, and then try another ECM.
Author :
IG−1
IG03Z−04
50°C (122°F)
Date : 1156