2003 TOYOTA AVENSIS spark plugs replace
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1807M±01
CHECK POWER SUPPLY TO IGNITION COIL WITHSENSOR (See page 18±9)
SPARK TEST
Replace crankshaft position sensor.
CHECK RESISTANCE OF CAMSHAFT POSITION
1. Turn ignition switch ON.
2. Check that there is battery voltage at ignition coil positive (+) terminal.
CHECK CONNECTION OF IGNITION COIL WITH IGNITER
Resistance: ColdHot
1,060 to 1,645
CHECK RESISTANCE OF CRANKSHAFT POSITION
Resistance: ColdHot
985 to 1,600 1,265 to 1,890
CHECK IGT SIGNAL FROM ECM
(See page 05±232)
REPAIR WIRING BETWEEN IGNITION COIL AND ECM Connect securely.
Check wiring between ignition switch to ignition coil with igniter.
Check ECM (See page 01±32)
NG
OK
OK
OK
OK NG
NG
NG
NG
NG
SENSOR (See page 18±9 )
835 to 1,400
IGNITER
CHANGE IT TO NORMAL IGNITION COIL WITH IGNITER
AND PERFORM SPARK TEST AGAIN
OK
Replace ignition coil with igniter.
NG
OK
CONNECTOR
Replace camshaft position sensor.
±
IGNITIONIGNITION SYSTEM(1AZ±FE)
18±7
AVENSIS REPAIR MANUAL (RM1018E)
IGNITION SYSTEM(1AZ±FE)
ON±VEHICLE INSPECTION
NOTICE:
ºColdº and ºHotº in this section mean the temperature of the coils thems\
elves.ºColdº is from ±10C
(14F) 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
(a)Check for DTCs.
NOTICE:
If DTC is present, perform a troubleshooting in accordance with a proced\
ure for that DTC.
(b)Check that spark occurs. (1)Remove the cylinder head cover No. 1. (See page 14±106)
(2) Remove the ignition coils (with igniter).
(3) Using a 16mm (0.63 in) plug wrench, remove the spark plugs.
(4) Install the spark plugs to each ignition coil (with igniter) and connect the \
ignition coil connectors.
(5) Disconnect the 4 injector connectors.
(6) Ground the spark plugs.
(7) Check if spark occurs at each spark plug while engine is being cranked.
NOTICE:
Be sure to ground the spark plug when checking.
Replace the ignition coil if it is given physical impact.
Do not crank the engine for more than 2 seconds.
If the sparks do not occur, do the following test:
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Page 946 of 2234
1807N±01
A50033
P03783
P03792
IG0147
Ohmmeter
Ground
±
IGNITION IGNITION SYSTEM (1AZ±FE)
18±9
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT SPARK PLUG (EXCEPT EUROPE)
(a) Clean the spark plugs.
If the electrode has traces of wet carbon, clean the electrode
with a spark plug cleaner then dry it.
Air pressure: Below 588 kPa (6kg/cm
2, 85 psi)
Duration: 20 seconds or less
(b) Check the spark plug for any damage on its thread and insulator damage.
If there is damage, replace the spark plug. Recommended spark plug:
DENSO madeK20R±U11
NGK madeBKR6EYA11
(c) Adjust electrode gap.Electrode gap: 1.0 to 1.1 mm (0.039 to 0.043 in.)
2. INSPECT SPARK PLUG (FOR EUROPE)
NOTICE:
Do not use a wire brush for cleaning.
Do not attempt to adjust the electrode gap of a used
spark plug.
Spark plug should be replaced every 100,000 km
(60,000 miles).
(a) Check the electrode. (1) Using an ohmmeter, measure the insulation resis-tance.
Correct insulation resistance: 10 M or more
If the resistance is less then the specified valve, proceed to step
(d).
HINT:
If the ohmmeter is not available, perform the following alterna-
tive inspection. This provides also fairly accurate results.
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Page 947 of 2234
B01301
IG0316
B02101
1.1 mm
B62019
18±10
±
IGNITION IGNITION SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(b) Alternative inspection: (1) Quickly accelerate the engine to 4,000 rpm 5 times.
(2) Remove the spark plug.
(3) Visually check the spark plug.
(4) If the electrode is dry...OK.
(5) If the electrode is wet...Proceed to step (C).
(6) Reinstall the spark plug.
(c) Check the spark plug for any damage on its thread and insulator.
If there is damage, replace the spark plug. Recommended spark plug:
DENSO madeSK20R11
NGK madeIFR6A11
(d) 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:
1.0 to 1.1 mm (0.039 to 0.043 in.)
(e) Clean the spark plugs.
If the electrode has traces of wet carbon, clean the electrode
with a spark plug cleaner then dry it. Air pressure: Blow 588 kPa (6 kgf/cm
2, 85 psi)
Duration: 20 seconds or less
HINT:
If there are traces of oil, remove it with gasoline before using the
spark plug cleaner.
3. INSPECT CAMSHAFT POSITION SENSOR
(a) Using an ohmmeter, measure the resistance between the terminals. RESISTANCE:
835 to 1,400 at cold
1,060 to 1,645 at hot
NOTICE:
ºColdº and ºHotº mean the temperature of the coils themselve\
s.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).
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Page 949 of 2234
1807Q±01
CHECK POWER SUPPLY TO IGNITION COIL WITHSENSOR (See page 18±14)
SPARK TEST
Replace crankshaft position sensor.
CHECK RESISTANCE OF CAMSHAFT POSITION
1. Turn ignition switch ON.
2. Check that there is battery voltage at ignition coil positive (+) terminal.
CHECK CONNECTION OF IGNITION COIL WITH IGNITER
Resistance: ColdHot
1,060 to 1,645
CHECK RESISTANCE OF CRANKSHAFT POSITION
Resistance: ColdHot
985 to 1,600 1,265 to 1,890
CHECK IGT SIGNAL FROM ECM
(See page 05±439)
REPAIR WIRING BETWEEN IGNITION COIL AND ECM Connect securely.
Check wiring between ignition switch to ignition coil with igniter.
Check ECM (See page 01±32)
NG
OK
OK
OK
OK NG
NG
NG
NG
NG
SENSOR (See page 18±14)
835 to 1,400
IGNITER
CHANGE IT TO NORMAL IGNITION COIL WITH IGNITER
AND PERFORM SPARK TEST AGAIN
OK
Replace ignition coil with igniter.
NG
OK
CONNECTOR
Replace camshaft position sensor.
18±12
±
IGNITIONIGNITION SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
IGNITION SYSTEM(1AZ±FSE)
ON±VEHICLE INSPECTION
NOTICE:
ºColdº and ºHotº in this section mean the temperature of the coils thems\
elves.ºColdº is from ±10C
(14F) 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
(a)Check for DTCs.
NOTICE:
If DTC is present, perform a troubleshooting in accordance with a proced\
ure for that DTC.
(b)Check that spark occurs. (1)Remove the cylinder head cover No. 1. (See page 14±186)
(2) Remove the ignition coils (with igniter).
(3) Using a 16mm (0.63 in) plug wrench, remove the spark plugs.
(4) Install the spark plugs to each ignition coil (with igniter) and connect the \
ignition coil connectors.
(5) Disconnect the 4 injector connectors.
(6) Ground the spark plugs.
(7) Check if spark occurs at each spark plug while engine is being cranked.
NOTICE:
Be sure to ground the spark plug when checking.
Replace the ignition coil it is given physical impact.
Do not crank the engine for more than 2 seconds.
If the sparks do not occur, do the following test:
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Page 952 of 2234
A78640
1.0 to 1.1 mm
B62019
±
IGNITION IGNITION SYSTEM (1AZ±FSE)
18±15
AVENSIS REPAIR MANUAL (RM1018E)
(d) 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:
1.0 to 1.1 mm (0.039 to 0.043 in.)
(e) Clean the spark plugs.
If the electrode has traces of wet carbon, clean the electrode
with a spark plug cleaner then dry it. Air pressure: Blow 588 kPa (6 kgf/cm
2, 85 psi)
Duration: 20 seconds or less
HINT:
If there are traces of oil, remove them with gasoline before using
the spark plug cleaner.
2. INSPECT CAMSHAFT POSITION SENSOR
(a) Using an ohmmeter, measure the resistance between the terminals. RESISTANCE:
835 to 1,400 at cold
1,060 to 1,645 at hot
NOTICE:
ºColdº and ºHotº mean the temperature 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).
3. INSPECT CRANKSHAFT POSITION SENSOR
(a) Using an ohmmeter, measure the resistance between the terminals.
RESISTANCE:
985 to 1,600 at cold
1,265 to 1,890 at hot
NOTICE:
ºColdº and ºHotº mean the temperature 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).
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Page 953 of 2234
1807O±01
CHECK POWER SUPPLY TO IGNITION COIL WITHSENSOR (See page 18±3)
SPARK TEST
Replace crankshaft position sensor.
CHECK RESISTANCE OF CAMSHAFT POSITION
1. Turn ignition switch ON.
2. Check that there is battery voltage at ignition coil positive (+) terminal.
CHECK CONNECTION OF IGNITION COIL WITH IGNITER
Resistance: ColdHot
1,060 to 1,645
CHECK RESISTANCE OF CRANKSHAFT POSITION
Resistance: ColdHot
1,630 to 2,740 2,065 to 3,225
CHECK IGT SIGNAL FROM ECM
(See page 05±103)
REPAIR WIRING BETWEEN IGNITION COIL AND ECM Connect securely.
Check wiring between ignition switch to ignition coil with igniter.
Check ECM (See page 01±32)
NG
OK
OK
OK
OK NG
NG
NG
NG
NG
SENSOR (See page 18±3)
835 to 1,400
IGNITER
CHANGE IT TO NORMAL IGNITION COIL WITH IGNITER
AND PERFORM SPARK TEST AGAIN
OK
Replace ignition coil with igniter.
NG
OK
CONNECTOR
Replace camshaft position sensor.
±
IGNITIONIGNITION SYSTEM(1ZZ±FE/3ZZ±FE)
18±1
AVENSIS REPAIR MANUAL (RM1018E)
IGNITION SYSTEM(1ZZ±FE/3ZZ±FE)
ON±VEHICLE INSPECTION
NOTICE:
ºColdº and ºHotº in this section mean the temperature of the coils thems\
elves.ºColdº is from ±10C
(14F) 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
(a)Check for DTCs.
NOTICE:
If DTC is present, perform a troubleshooting in accordance with a proced\
ure for that DTC.
(b)Check that spark occurs. (1)Remove the cylinder head cover No. 2. (See page 14±6)
(2) Remove the ignition coils (with igniter).
(3) Using a 16mm (0.63 in) plug wrench, remove the spark plugs.
(4) Install the spark plugs to each ignition coil (with igniter) and connect the \
ignition coil connectors.
(5) Disconnect the 4 injector connectors.
(6) Ground the spark plugs.
(7) Check if spark occurs at each spark plug while engine is being cranked.
NOTICE:
Be sure to ground the spark plug when checking.
Replace the ignition coil it is given physical impact.
Do not crank the engine for more than 2 seconds.
If the sparks do not occur, do the following test:
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Page 955 of 2234
1807P±01
A50033
P03783
P03792
±
IGNITION IGNITION SYSTEM (1ZZ±FE/3ZZ±FE)
18±3
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT SPARK PLUG
(a) Clean the spark plugs.
If the electrode has traces of wet carbon, clean the electrode
with a spark plug cleaner then dry it.
Air pressure: Below 588 kPa (6kg/cm
2, 85 psi)
Duration: 20 seconds or less
(b) Check the spark plug for any damage on its thread and insulator damage.
If there is damage, replace the spark plug. Recommended spark plug:
DENSO madeK16R±U11
NGK madeBKR5EYA11
(c) Adjust electrode gap.Electrode gap: 1.0 to 1.1 mm (0.039 to 0.043 in.)
2. INSPECT CAMSHAFT POSITION SENSOR
(a) Using an ohmmeter, measure the resistance between the terminals. RESISTANCE:
835 to 1,400 at cold
1,060 to 1,645 at hot
NOTICE:
ºColdº and ºHotº mean the temperature of the coils themselve\
s.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).
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