Toyota Tundra 2005 Service - Repair - Maintenance page 2122

IG−2
SPARK TEST
NG
CHECK TDC
NG
CHECK CONNECTION OF IGNITION COIL
CONNECTOR
OK
CHANGE IT TO NORMAL IGNITION COIL (WITH
IGNITER) AND PERFORM SPARK TEST AGAIN
NO
CHECK POWER SUPPLY TO IGNITION COIL (WITH
IGNITER)
1. Turn ignition switch to ON.
2. Check that there is battery voltage at ignition coil positive (+)
terminal.
OK
CHECK RESISTANCE OF CRANKSHAFT POSITION
SENSOR (See page IG−12)
Cold
985 − 1,600 Ω
Resistance:
OK
CHECK IGT SIGNAL FROM ECM
(See page DI−642)
OK
REPAIR WIRING BETWEEN IGNITION COIL
AND ECM
IGNITION (2UZ−FE)
Hot
1,265 − 1,890 Ω
16 mm Plug Wrench
B03198
− IGNITION SYSTEM
If the spark does not occur, do the test as follows:
BAD
OK
BAD
BAD
BAD
(7) Using a 16 mm plug wrench, install the spark plugs.
Torque: 17.5 N·m (180 kgf·cm, 13 ft·lbf)
(8) Reinstall the ignition coils (with igniter).
(see page IG−6)
2. INSPECT SPARK PLUGS
(a) Remove the ignition coils (with igniter).
(see page IG−5)
(b) Using a 16 mm plug wrench, remove the spark plugs.
Connect securely.
Replace the ignition coil (with igniter).
Check wiring between ignition switch
to ignition coil (with igniter).
Replace the crankshaft position sensor.
Check ECM (See page IN−30)