2002 TOYOTA AVENSIS check engine

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
±
IGNITION IGNITION 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 ±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
(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:

1807R±01
IG0147
Ohmmeter
Ground
A78638
A78639
18±14
± IGNITIONIGNITION 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

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.
±
IGNITION IGNITION 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 ±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
(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:

710CM±02
±
INSTRUMENT PANEL/METER COMBINATION METER
71±1
AVENSIS REPAIR MANUAL (RM1018E)
COMBINATION METER
PROBLEM SYMPTOMS TABLE
Warning Lights:
SymptomSuspect AreaSee page
Check Engine warning light does not come on.
1.Wire Harness or Connector
2.ECM
3.Combination Meter Assy±
±
±
Discharge warning light does not come on.
1.Wire Harness or Connector
2.ECM
3.Combination Meter Assy±
±
±
Brake warning light does not come on.
1.Wire Harness or Connector
2.Skid control ECU
3.Combination Meter Assy±
±
±
ABS warning light does not come on.
1.Wire Harness or Connector
2.Skid control ECU
3.Combination Meter Assy±
±
±
SRS warning light does not come on.
1.Wire Harness or Connector
2.Airbag Sensor Assy
3.Combination Meter Assy±
05±1197 ±
Open Door warning light does not come on.
1.Wire Harness or Connector
2.Front Door Courtesy Light
3.Body ECU
4.Combination Meter Assy±
±
±
±
Fuel Level warning light does not come on.
1.Wire Harness or Connector
2.Fuel Sender Gauge
3.Combination Meter Assy±
±
±
Low Oil Pressure warning light does not come on.
1.Wire Harness or Connector
2.Low Oil Pressure Warning Switch
3.Combination Meter Assy±
±
±
Engine Oil Level warning light does not come on.
1.Wire Harness or Connector
2.Oil Level Sensor
3.Combination Meter Assy±
±
±
Belt warning light does not come on.
1.Wire Harness or Connector
2.Body ECU
3.Front Inner Belt Assy
4.Combination Meter Assy±
±
05±1522
±
VSC warning light does not come on.
1.Wire Harness or Connector
2.VSC Circuit
3.Combination Meter Assy±
05±752 ±
Indicator Lights:
SymptomSuspect AreaSee page
Shift indicator light do not come on.
1. Wire Harness or Connector
2. ECM
3. Neutral Start Switch Circuit
4. Combination Meter Assy±
±
±
±
Turn indicator light does not come on.
1. Wire Harness or Connector
2. Turn Signal and Hazard Warning System
3. Combination Meter Assy±
65±9 ±
Glow indicator light does not come on.
1. Wire Harness or Connector
2. ECM
3. Combination Meter Assy±
±
±
TRC off indicator light does not come on.
1. Wire Harness or Connector
2. VSC Circuit
3. Combination Meter Assy±
05±752 ±

I30899
Fuel Sender Gauge: 71±4
± INSTRUMENT PANEL/METERCOMBINATION METER
AVENSIS REPAIR MANUAL (RM1018E)
3. INSPECT TACHOMETER
(a) Check the operation
(1) Connect a tune±up test tachometer, and start the engine.
NOTICE:

Reversing the connection of the tachometer will damage the transistors and the insides of the
diodes .

When removing or installing the tachometer, be careful not to drop or subject it to heavy
shocks.
(2) Compare the result of the test with standard indication.
DC 13.5 V, 25 C at (77 F)
Standard indication (r/min)Acceptable range (r/min)
Data in ( ) are for reference
700630 ± 770
1,000(900 ± 1100)
2,000(1850 ± 2150)
3,0002800 ± 3200
4,000(3800 ± 4200)
5,0004800 ± 5200
6,000(5750 ± 6250)
7,0006700 ± 7300
4. INSPECT FUEL RECEIVER GAUGE
(a) Inspect the circuit.
(1) Disconnect the connector from the sender gauge.
(2) Turn the ignition switch to ON, then check the posi-
tion of the receiver gauge needle.
Needle position: EMPTY
(3) Connect the terminal 2 and 3 on the wire harness
side connector of fuel sender gauge.
(4) Turn the ignition switch to ON, then check the posi-
tion of the receiver gauge needle.
Needle position: FULL
5. INSPECT FUEL LEVEL WARNING
(a) Inspect the circuit.
(1) Disconnect the connector from the sender gauge.
(2) Turn the ignition switch to ON, check the fuel level needle indicates EMPTY and fuel level warn-
ing light comes on.
6. INSPECT ENGINE COOLANT TEMPERATURE RECEIVER GAUGE WARNING LIGHT
(a) Inspect the circuit.
(1) Disconnect the connector from the sender gauge.
(2) Turn the ignition switch to ON, check the position of the water temperature receiver gauge
needle.
Needle position: COOL
(3) Ground the terminal 2 on the wire harness side, then check the position of the water temperature
receiver gauge needle.
Needle position: HOT

1302G±03
A77131
Vacuum Gage
35.7

3700 100
Throttle Valve Open Position


Engine Speed [r/min.]ON
OFF
A59594
SCV VSV
± INTAKEINTAKE AIR CONTROL SYSTEM (1AZ±FSE)
13±1
AVENSIS REPAIR MANUAL (RM1018E)
INTAKE AIR CONTROL SYSTEM (1AZ±FSE)
ON±VEHICLE INSPECTION
1. INSPECT INTAKE AIR CONTROL SYSTEM
(a) Using a 3±way connector, connect vacuum gauge to the
actuator hose.
(b) Connect the hand±held tester to the DLC 3.
(c) Start the engine.
(d) Select the active test mode according to the message on
the hand±held tester.
Vacuum:
VSV ONApprox. 27 kPa (200 mm Hg, 7.9 in. Hg)
VSV OFF0 kPa (0 mm Hg, 0 in. Hg.)
(e) Shift the transmission into the P range and control the ac-
celerator pedal.
(f) Check the VSV operation using the hang±held tester.
HINT:
The value in the illustration is only for reference; the throttle
valve may operate diversely depend on the engine running
condition.

1302Z±03
A77123
SST
A60595E2 VC
± INTAKETURBO CHARGER SYSTEM (1CD±FTV)
13±5
AVENSIS REPAIR MANUAL (RM1018E)
ON±VEHICLE INSPECTION
1. INSPECT INTAKE AIR SYSTEM
(a) Check for leakage or clogging between the air cleaner
housing and turbocharger inlet and between the turbo-
charger outlet and cylinder head.
(1) Clogged air cleaner...Clean or replace element
(2) Hoses collapsed or deformed...Repair or replace
(3) Leakage from connections...Check each connec-
tion and repair
(4) Cracks in components...Check and replace
2. INSPECT EXHAUST SYSTEM
(a) Check for leakage or clogging between the cylinder head
and turbocharger inlet and between the turbocharger out-
let and exhaust pipe.
(1) Deformed components...Repair or replace
(2) Foreign material in passages...Remove
(3) Leakage from components...Repair or replace
(4) Cracks in components...Check and replace
3. CHECK TURBOCHARGING PRESSURE
(a) Warm up the engine.
(b) Using a 3±way connector, connect SST (turbocharger
pressure gauge) to the hose leading to the intake air con-
nector.
SST 09992 ± 00242
(c) While depressing the clutch pedal, press the accelerator
pedal down to the full. Measure the turbocharging pres-
sure at maximum speed (5,100 to 5,250 rpm).
Standard pressure:
15 to 45 kPa (0.15 to 0.46 kgf/cm
2, 2.2 to 6.5 psi)
If the pressure is less than specification, check both the intake
air and exhaust systems for leakage.
If there is no leakage, check if the actuator hose has discon-
nected. If not, check the turbocharger.
If the pressure is greater than specification, check if the actua-
tor hose has disconnected or cracked. If not, check the turbo-
charger.
4. INSPECT TURBO PRESSURE SENSOR
(a) Inspect power source voltage
(1) Disconnect the turbo pressure sensor connector.
(2) Turn the ignition switch ON.
(3) Using a voltmeter, measure the voltage between
connector terminals 3 (VC) and 1 (E2) of the wiring
harness side.
Voltage: 4.5 to 5.5 V
(4) Turn the ignition switch OFF.
(5) Reconnect the turbo pressure sensor connector.

1302Y±03
A77119
A77120
A77121
± INTAKETURBO CHARGER SYSTEM (1CD±FTV)
13±3
AVENSIS REPAIR MANUAL (RM1018E)
TURBO CHARGER SYSTEM (1CD±FTV)
PRECAUTION
1. MAINTENANCE PRECAUTION
(a) Do not stop the engine immediately after pulling a trailer,
or after driving at a high speed, or uphill drive. Let the en-
gine Idle for 20 to 120 seconds before turn the ignition
switch OFF (According as the driving condition, the idling
time varies).
(b) Avoid quick acceleration or quickly accelerating the en-
gine RPM immediately after the starting a cold engine.
(c) If the turbocharger is found to be defective, it must be re-
placed. Also, inspect a source of the trouble including
conditions of the turbocharger that having been used. Re-
pair or replace the followings as necessary:
(1) Engine oil (Level and quality)
(2) Oil lines leading to the turbocharger
(d) Pay due attention when removing and reinstalling the
turbocharger assembly. Do not drop, or do not give shock,
or do not grasp easily±deformed assembly parts such as
the actuator or push rod in removal and reinstallation.
(e) Before removal, cover both the intake and exhaust ports
and the oil inlet to prevent dirt or foreign objects from be-
ing introduced.
(f) If replacing the turbocharger, check for deposits in the oil
pipe. If necessary, replace the oil pipe too.
(g) Thoroughly remove old gasket sticking to the lubrication
oil pipe flange and the turbocharger oil flange.
(h) If replacing the bolt(s) or nut(s), must use Toyota genuine
parts to prevent breakage or deformation.
(i) If replacing the turbocharger, put 20 cm
3 (1.2 cu in.) of
fresh oil into the turbocharger oil inlet hole and turn the tur-
bine wheel by hand to spread oil to the bearing.
(j) If overhauling or replacing the engine, cut the fuel supply
after reassembly and crank the engine for 30 seconds to
feed oil throughout the engine then run the engine at idle
for 60 seconds.