TOYOTA AVENSIS 2003 Service Repair Manual

1807R±01
IG0147
Ohmmeter
Ground
A78638
A78639
18±14
±
IGNITION IGNITION SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT SPARK PLUG
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 value, proceed to step
(d).
HINT:
If the ohmmeter is not available, do the following inspection
instead.
(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.
If a kink or twist as shown in the illustration on the left is found
on the spark plug, replace it with a new one.
(4) If the electrode is dry...OK.
(5) If the electrode is wet...Proceed to step (e).
(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 madeSK20BR11
http://vnx.su

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).
http://vnx.su

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:
http://vnx.su

18±2
±
IGNITIONIGNITION SYSTEM(1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(c)Using a 16 mm (0.63 in.) plug wrench, install the spark plugs. Torque: 18 N
m (184 kgf
cm, 13 ft
lbf)
(d)Install the ignition coil with igniter.
Torque: 9.0 N
m (92 kgf
cm, 80 in.
lbf)
(e)Install the cylinder head cover No. 2. (See page 14±6)
http://vnx.su

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).
http://vnx.su

18±4
±
IGNITION IGNITION SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
3. INSPECT CRANKSHAFT POSITION SENSOR
(a) Using an ohmmeter, measure the resistance between the terminals. RESISTANCE:
1,630 to 2,740  at cold
2,065 to 3,225 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).
http://vnx.su

190NV±01
19±14
±
STARTING & CHARGING CHARGING SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
CHARGING SYSTEM (1AZ±FE)
PRECAUTION
1. Check that the battery cables are connected to the correct terminals.
2. Disconnect the battery cables when the battery is given a quick charge.
3. Do not perform tests with a high voltage insulation resistance tester.
4. Never disconnect the battery while the engine is running.
5. Check that the charging cable is tightened on terminal B of the generato\
r and the fuse box.
http://vnx.su

190NW±01
A81052
\b

A82936
Type A
Type B BlueWhite
Red
Green Dark
Clear or
light yellow
B00543
±
STARTING & CHARGING CHARGING SYSTEM (1AZ±FE)
19±15
AVENSIS REPAIR MANUAL (RM1018E)
ON±VEHICLE INSPECTION
1. CHECK BATTERY ELECTROLYTE LEVEL
(a) Check the electrolyte quantity of each cell.
(1) If the electrolyte is under the low level, replace the battery (or add di\
stilled water if possible) andcheck the charging system.
2. CHECK BATTERY VOLTAGE
(a) If it has not been 20 minutes since you drove the vehicleor since the engine was stopped, turn the ignition switch
and the electrical system (headlight, blower motor, rear
defogger etc.) to the on position for 60 seconds. This will
remove the surface charge on the battery.
(b) Turn off the ignition switch and the electrical systems.
(c) Measure the battery voltage between the negative (±) and positive (+) terminals of the battery.
Standard voltage: 12.5 to 12.9 V at 20 C (68 F)
HINT:
If the voltage is less than specification, charge the battery.
(d) Check the indicator as shown in the illustration.
HINT:
Indicator colorConditionType AType BCondition
GreenBlueOK
DarkWhiteCharging necessary
Clear or light yellowRedReplace
3. CHECK BATTERY TERMINALS, FUSIBLE LINK AND FUSES
(a) Check that the battery terminals are not loosened or corroded.
(b) Check the fusible links, high±current fuses and regular fuses.
4. INSPECT DRIVE BELT
(a) Visually check the belt for excessive wear, frayed cordsetc.
HINT:

If any defect found, replace the drive belt.

Cracks on the rib side of a belt are considered acceptable.
If the belt has chunks missing from the ribs, it should be
replaced.
http://vnx.su

B00540
A75980
Disconnect Wire
from Terminal B
Generator
Voltmeter
Battery Ammeter
19±16
±
STARTING & CHARGING CHARGING SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(b) Check that it fits properly in the ribbed grooves.
HINT:
Check with your hand to confirm that the belt has not slipped out
of the groove on the bottom of the pulley.
5. VISUALLY CHECK GENERATOR WIRING
(a) Check that the wiring is in good condition.
6. LISTEN FOR ABNORMAL NOISES FROM GENERATOR
(a) Check that there is no abnormal noise from the generator while the engin\
e is running.
7. INSPECT CHARGE WARNING LIGHT CIRCUIT
(a) Turn the ignition switch ON. Check that the charge warning light comes on\
.
(b) Start the engine and check that the light goes off.
HINT:
If the light does not operate as specified, troubleshoot the charge warn\
ing light circuit. 8. INSPECT CHARGING CIRCUIT WITHOUT LOAD
(a) According to the following procedure, connect an amme-
ter and voltmeter as shown in the illustration.
(1) Disconnect the wire from terminal B of the generatorand connect it to the negative (±) lead of the amme-
ter.
(2) Connect the positive (+) lead of the ammeter to ter- minal B of the generator
(3) Connect the positive (+) lead of the voltmeter to ter- minal B of the generator.
(4) Ground the negative (±) lead of the voltmeter.
(b) Check the charging circuit. (1) Keep the engine speed at 2,000 rpm, check thereading on the ammeter and voltmeter.
Standard amperage: 10 A or less
Standard voltage: 12.9 to 14.9 V
HINT:

If the voltmeter reading is more than standard voltage, re-
place the voltage regulator.

If the voltmeter reading is less than the standard voltage,
check the voltage regulator and generator as follows:
9. INSPECT CHARGING CIRCUIT WITH LOAD
(a) Keep the engine speed at 2,000 rpm, turn on the high beam headlights and\
turn the heater blower switch to the ºHIº position.
(b) Check the reading on the ammeter. Standard amperage: 30 A or more
HINT:

If the ammeter reading is less than standard amperage, repair the genera\
tor.

If the battery is fully charged, the indication will sometimes be less t\
han standard amperage.
http://vnx.su

190NS±01
±
STARTING & CHARGING CHARGING SYSTEM (1AZ±FSE)
19±17
AVENSIS REPAIR MANUAL (RM1018E)
CHARGING SYSTEM (1AZ±FSE)
PRECAUTION
1. Check that the battery cables are connected to the correct terminals.
2. Disconnect the battery cables when the battery is given a quick charge.
3. Do not perform tests with a high voltage insulation resistance tester.
4. Never disconnect the battery while the engine is running.
5. Check that the charging cable is tightened on terminal B of the generato\
r and the fuse box.
http://vnx.su