Page 2393 of 3115
IG08Y-01
- IGNITIONCRANKSHAFT POSITION SENSOR
IG-13
1816 Author: Date:
2004 LAND CRUISER (RM1071U)
INSTALLATION
Installation is in the reverse order of removal. (See page IG-12)
Page 2394 of 3115
IG08X-01
B03153
IG-12
- IGNITIONCRANKSHAFT POSITION SENSOR
1815 Author: Date:
2004 LAND CRUISER (RM1071U)
REMOVAL
1. REMOVE NO.2 ENGINE UNDER COVER
2. REMOVE CRANKSHAFT POSITION SENSOR
(a) Disconnect the crankshaft position sensor connector.
(b) Remove the bolt and crankshaft position sensor.
Torque: 6.5 N´m (65 kgf´cm, 58 in.´lbf)
Page 2395 of 3115
IG08Q-02
B06327
V-Bank Cover
PS Air Hose
Intake Air ConnectorEVAP Hose
Engine Wire
Ignition Coil (with Igniter)
Connector
: Specified torque
N´m (kgf´cm, ft´lbf)Air Hose
Ignition Coil
(with Igniter)
7.5 (80, 66 in.´lbf)
Fuel Return Hose
- IGNITIONIGNITION COIL
IG-5
1808 Author: Date:
2004 LAND CRUISER (RM1071U)
IGNITION COIL
COMPONENTS
Page 2396 of 3115
IG08S-01
- IGNITIONIGNITION COIL
IG-7
1810 Author: Date:
2004 LAND CRUISER (RM1071U)
INSTALLATION
Installation is in the reverse order of removal. (See page IG-6)
Page 2397 of 3115
IG08R-01
B04085
IG-6
- IGNITIONIGNITION COIL
1809 Author: Date:
2004 LAND CRUISER (RM1071U)
REMOVAL
1. REMOVE V-BANK COVER
2. REMOVE INTAKE AIR CONNECTOR
3. DISCONNECT ENGINE WIRE FROM LH CYLINDER
HEAD COVER
Disconnect the 2 wire clamps and engine wire.
4. DISCONNECT IGNITION COIL (WITH IGNITER) CON-
NECTORS
5. REMOVE IGNITION COILS (WITH IGNITER) FROM
SPARK PLUGS
Remove the bolt, and pull out the ignition coil (with igniter). Re-
move the 8 ignition coils (with igniter).
Torque: 7.5 N´m (80 kgf´cm, 66 in.´lbf)
Page 2398 of 3115
IG08P-03
- IGNITIONIGNITION SYSTEM
IG-1
1804 Author: Date:
2004 LAND CRUISER (RM1071U)
IGNITION SYSTEM
ON-VEHICLE INSPECTION
NOTICE:
ºColdº and ºHotº in these sentences express the tempera-
ture of the coils themselves. ºColdº is from -10°C (14°F) to
50°C (122°F) and ºHotº is from 50°C (122°F) to 100°C
(212°F).
1. INSPECT IGNITION COIL (WITH IGNITER) AND
SPARK TEST
Check that the spark occurs.
(1) Remove the ignition coils (with igniter) (See page
IG-6).
(2) Remove the spark plugs.
(3) Install the spark plugs to each ignition coil (with ig-
niter), and connect the ignition coil (with igniter) con-
nector.
(4) Disconnect the 8 injector connectors.
(5) Ground the spark plug.
(6) Check if spark occurs while engine is being
cranked.
NOTICE:
To prevent gasoline from being injected from injectors dur-
ing this test, crank the engine for no more than 5 - 10 se-
conds at time.
Page 2399 of 3115

CHECK POWER SUPPLY TO IGNITION COIL (WITH
SENSOR (See step 3)
SPARK TEST
Replace the crankshaft position sensor.
CHECK RESISTANCE OF CAMSHAFT POSITION
1. Turn ignition switch to ON.
2. Check that there is battery voltage at ignition coil positive (+)
terminal.
CHECK CONNECTION OF IGNITION COIL
CONNECTOR
Resistance:Cold Hot
CHECK RESISTANCE OF CRANKSHAFT POSITION
Resistance:Cold Hot 1,630 - 2,740 W2,065 - 3.225 W
CHECK IGT SIGNAL FROM ECM
(See page DI-202)
REPAIR WIRING BETWEEN IGNITION COIL
AND ECM
Replace the camshaft position sensor. Connect securely.
Check wiring between ignition switch
to ignition coil (with igniter).
Check ECM (See page IN-36)
NO
OK
OK
OK
OKBAD
BAD
BAD
BAD
BAD
SENSOR (See step 4) IGNITER) CHANGE IT TO NORMAL IGNITION COIL (WITH
IGNITER) AND PERFORM SPARK TEST AGAIN
OKReplace the ignition coil (with igniter).
NO
OK
985 - 1,600 W1,265 - 1,890 W
IG-2
- IGNITIONIGNITION SYSTEM
1805 Author: Date:
2004 LAND CRUISER (RM1071U)
If the spark does not occur, do the test as follows:
(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
NOTICE:
Never use a wire brush for cleaning.
Never attempt to adjust the electrode gap on used
spark plug.
Spark plug should be replaced every 100,000 km
(60,000 miles).
(a) Remove the ignition coils (with igniter) (See page
IG-6).
Page 2400 of 3115

IG0147
Megger
Ground
B01301
B03198
16 mm Plug Wrench
IG0316
B02101
1.1 mm
- IGNITIONIGNITION SYSTEM
IG-3
1806 Author: Date:
2004 LAND CRUISER (RM1071U)
(b) Check the electrode.
Using a megger (insulation resistance meter), mea-
sure the insulation resistance.
Correct insulation resistance: 10 MW or more
If the resistance is less than specified, proceed to step (d).
HINT:
If a megger is not available, the following simple method of in-
spection provides fairly accurate results.
Simple Method:
Quickly race the engine to 4,000 rpm 5 times.
Remove the spark plug. (See step (c))
Visually check the spark plug.
If the electrode is dry ... OK.
If the electrode is wet ... Proceed to step (d).
Reinstall the spark plug. (See step (g))
(c) Using a 16 mm plug wrench, remove the spark plugs.
(d) Check the spark plug for thread damage and insulator
damage.
If abnormal, replace the spark plug.
Recommended spark plug:
DENSO madeSK20R11
NGK madeIFR6A11
(e) Check the spark plug electrode gap.
Maximum electrode gap for used spark plug:
1.3 mm (0.051 in.)
If the gap is greater than maximum, replace the spark plug.
Correct electrode gap for new spark plug:
1.1 mm (0.043 in.)
NOTICE:
If adjusting the gap of a new spark plug, bend only the base
of the ground electrode. Do not touch the tip. Never attempt
to adjust the gap on a used plug.