air condition LEXUS ES300 2005 Manual PDF
[x] Cancel search | Manufacturer: LEXUS, Model Year: 2005, Model line: ES300, Model: LEXUS ES300 2005Pages: 969, PDF Size: 24.08 MB
Page 428 of 969
EM1628
A51428
A51429
A78721
Tension Portion 14-52
- ENGINE MECHANICALPARTIAL ENGINE ASSY (3MZ-FE)
2144 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(d) If there is wear or damage on only one side of the belt,
check the belt guide and alignment of each pulley.
(e) If there is noticeable wear on the belt teeth:
Check the timing cover for damage.
Check that the gasket has been installed correctly.
Check for foreign objects on the pulley teeth.
If there is any doubt about the belt condition, replace the timing
belt.
54. INSPECT CAMSHAFT
(a) Inspect the camshaft for runout.
(1) Place the camshaft on V-blocks.
(2) Using a dial indicator, measure the runout at the
center journal.
Maximum circle runout: 0.06 mm (0.0024 in.)
If the runout is greater than maximum, replace the camshaft.
(b) Inspect the cam lobes.
(1) Using a micrometer, measure the cam lobe height.
Standard cam lobe height:
43.132 to 43.232 mm (1.6981 to 1.7020 in.) for intake
43.010 to 43.110 mm (1.6933 to 1.6972 in.) for exhaust
Minimum cam lobe height:
42.98 mm (1.6921 in.) for intake
42.86 mm (1.6874 in.) for exhaust
If the cam lobe height is less than minimum, replace the cam-
shaft.
(c) Inspect the camshaft journals.
(1) Using a micrometer, measure the journal diameter.
Journal diameter:
26.959 to 26.975 mm (1.0614 to 1.0620 in.)
If the journal diameter is not as specified, check the oil clear-
ance.
55. INSPECT CYLINDER HEAD SET BOLT
(a) Using vernier calipers, measure the tension portion diam-
eter of the bolt.
Standard outside diameter:
8.95 to 9.05 mm (0.3524 to 0.3563 in.)
Minimum outside diameter: 8.75 mm (0.3445 in.)
If the diameter is less than minimum, replace the bolt.
Page 458 of 969
EM3336
14-82
- ENGINE MECHANICALTIMING BELT (3MZ-FE)
2174 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
14. INSPECT TIMING BELT
NOTICE:
Do not bend, twist or turn the timing belt inside out.
Do not allow contact of the timing belt with oil, water
or steam.
Do not use the timing belt tension when installing or
removing the mounting bolt of the camshaft timing
pulley.
Check the belt for any defects as shown in the illustrations.
Also, check these points below.
(a) If the belt tears in a short time:
Check if the belt is installed properly.
Check if the timing cover gasket is damaged and if
it is installed properly.
(b) If the belt teeth are cracked or damaged, check if either
camshaft is locked.
(c) If there is noticeable wear or cracks on the belt face,
check if there are nicks on the side of the idler pulley lock
and water pump.
(d) If there is wear or damage on only one side of the belt,
check the belt guide and alignment of each pulley.
(e) If there is noticeable wear on the belt teeth:
Check the timing cover for damage.
Check that the gasket has been installed correctly.
Check for foreign objects on the pulley teeth.
If there is any doubt about the belt condition, replace the timing
belt.
15. INSTALL TIMING BELT
(a) Remove any oil or water on the pulleys, then keep them
clean.
NOTICE:
If there is a trace of water and/or oil on the timing belt,
repair the leakage and install a new timing belt.
Only wipe the pulleys; do not use any cleaning agent.
(b) Check the idler pulleys.
(1) Check that the idler pulley turns smoothly.
(2) Visually check the seal portion of the idler pulley for
oil leakage.
(c) Check the water pump.
(1) Turn the pulley, then check that water pump bearing
moves smoothly and does not make a noise.
(2) Visually check the drain hole for coolant leakage.
(d) Temporarily install the crankshaft pulley bolt and washer
to the crankshaft.
Page 558 of 969
100IZ-01
A86347DLC3
Hand-held Tester
A86347DLC3
Hand-held Tester
- ENGINE CONTROL SYSTEMSFI SYSTEM (3MZ-FE)
10-1
2006 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
SFI SYSTEM (3MZ-FE)
ON-VEHICLE INSPECTION
1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
ASSY
(a) Check the operation.
(1) Connect the hand-held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) Start the engine and allow it to warm up.
(4) Connect the hand-held tester, then select VVT from
the ACTIVE TEST menu.
(5) Check the engine speed when the OCV is operated
with the hand-held tester.
Standard:
Tester OperationSpecified Condition
OCV is OFFNormal engine speed
OCV is ONRough idle or engine stall
If the operation is not as specified, inspect the camshaft timing
oil control valve (see page 10-2).
2. INSPECT THROTTLE BODY ASSY
(a) Check the operation (throttle control motor).
(1) Turn the ignition switch ON.
(2) When turning the accelerator pedal position sensor
lever, check the running sound of the motor. Also,
check that there is no friction sound.
If the operation is not as specified, inspect the throttle body (see
page 10-2).
(b) Check the operation (throttle position sensor).
(1) Connect the hand-held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) Check that the check engine warning light does not
light up.
(4) Check that the throttle valve opening percentage
(THROTTLE POS) of CURRENT DATA showns the
standard value.
Standard throttle valve opening percentage:
60 % or more
NOTICE:
When checking the standard throttle valve opening per-
centage, the transmission is in the neutral position.
3. INSPECT ACCELERATOR PEDAL POSITION SENSOR
(a) Inspect the voltage.
(1) After turning the ignition switch ON, check CURRENT DATA, then verify that the throttle position
sensor voltage is within the standard value.
Standard voltage: 0.6 to 1.0 V
If the voltage is not as specified, inspect the accelerator pedal (see page 10-2).
Page 559 of 969
100J0-01
A86282
Ohmmeter
A86283Battery Spool Valve
A84676Battery Voltmeter
Air 10-2
- ENGINE CONTROL SYSTEMSFI SYSTEM (3MZ-FE)
2007 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
INSPECTION
1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
ASSY
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
1 (-) - 2 (+)6.9 to 7.9 W at 20C (68F)
If the resistance is not as specified, replace the camshaft timing
oil control valve.
(b) Check the operation.
(1) Connect the positive (+) lead from the battery to ter-
minal 2 (+) and negative (-) lead to terminal 1 (-),
then check the movement of the spool valve.
NOTICE:
Confirm that the spool valve moves freely and does not get
stuck in any position.
HINT:
Bad returning of the spool valve resulted from catching foreign
objects causes subtle pressure leak to the advanced direction.
In that case, DTC can be detected.
2. INSPECT MASS AIR FLOW METER
(a) Check the operation.
(1) Apply battery voltage across terminals 1 (+B) and 2
(E2G).
(2) Using voltmeter, connect the positive (+) tester
probe to terminal 3 (VC), and negative (-) tester
probe to terminal 2 (E2G).
(3) Blow air into the mass air flow sensor, then check
that the voltage fluctuates.
If the operation is not as specified, replace the mass air flow
sensor.
Page 560 of 969
A84677
Ohmmeter
-20 0 20406080
(-4) (32) (68)(104)(140)(176)
Temperature C (F) 30
0.2 0.515 10 20
Resistance kW
A84678
Ohmmeter
-20 0 20406080
(-4) (32) (68)(104)(140)(176)
Temperature C (F) 30
0.2 0.515 10 20
Resistance kW
- ENGINE CONTROL SYSTEMSFI SYSTEM (3MZ-FE)
10-3
2008 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(b) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
4 (THA) - 5 (E2)13.6 to 18.4 kW at -20C (-4F)
4 (THA) - 5 (E2)2.21 to 2.69 kW at 20C (68F)
4 (THA) - 5 (E2)0.493 to 0.667 kW at 60C (140F)
If the resistance is not as specified, replace the mass air flow
sensor.
3. INSPECT ENGINE COOLANT TEMPERATURE
SENSOR
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
1 (E2) - 2 (THW)2.32 to 2.59 kW at 20C (68F)
1 (E2) - 2 (THW)0.310 to 0.326 kW at 80C (176F)
NOTICE:
When checking the engine coolant temperature sensor in
water, be careful not to allow water to intrude into the termi-
nals. Then dry the engine coolant temperature sensor after
checking.
If the resistance is not as specified, replace the engine coolant
temperature sensor.
Page 561 of 969
A86281
Ohmmeter
A84680
Ohmmeter
A86284
Ohmmeter 10-4
- ENGINE CONTROL SYSTEMSFI SYSTEM (3MZ-FE)
2009 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
4. INSPECT THROTTLE BODY ASSY
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
1 (M-) - 2 (M+)0.3 to 100 W at 20C (68F)
3 (E2) - 5 (VC)1.2 to 3.2 kW at 20C (68F)
If the resistance is not as specified, replace the throttle body.
5. INSPECT KNOCK SENSOR
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
1 (Output)- 2 (Ground)120 to 280 W at 20C (68F)
If the resistance is not specified, replace the knock sensor.
6. INSPECT ACCELERATOR PEDAL ASSY (NORMAL
PEDAL)
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
2 (VPA2) - 3 (EP1)5.0 kW or less
1 (EP2) - 5 (VPA1)5.0 kW or less
3 (EP1) - 6 (VCP1)2.25 to 4.75 kW
1 (EP2) - 4 (VCP2)2.25 to 4.75 kW
If the resistance is not specified, replace the accelerator pedal.
Page 562 of 969
A86285
Ohmmeter
A84683
OhmmeterBattery
A84683
OhmmeterBattery
- ENGINE CONTROL SYSTEMSFI SYSTEM (3MZ-FE)
10-5
2010 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
7. INSPECT ACCELERATOR & BRAKE PEDAL ASSY
(POWER PEDAL)
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
3 (EP1) - 5 (VPA1)5.0 kW or less
1 (EP2) - 2 (VPA2)5.0 kW or less
3 (EP1) - 6 (VCP1)2.25 to 4.75 kW
1 (EP2) - 4 (VCP2)2.25 to 4.75 kW
If the resistance is not specified, replace the accelerator &
brake pedal.
8. INSPECT MAIN RELAY
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
3 - 510 kW or higher
3 - 5Below 1W
(Apply battery voltage to terminals 1 and 2
If the result is not as specified, replace the main relay.
9. INSPECT CIRCUIT OPENING RELAY
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
3 - 510 kW or higher
3 - 5Below 1W
(Apply battery voltage to terminals 1 and 2
If the result is not as specified, replace the circuit opening relay.
Page 588 of 969
110XT-02
Fuel Tube Connector
A50710
Fuel Tube Connector
SST
(Hose)
B12947
A86391
SST
(Hose)
SST
(Union)
O-ring
Vinyl TubeSST
(Clamp)
11-8
- FUELFUEL SYSTEM (3MZ-FE)
2036 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
INSPECTION
1. INSPECT FUEL INJECTOR ASSY
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
1 - 213.4 to 14.2 W at 20C (68F)
If the resistance is not as specified, replace the fuel injector.
(b) Check the operation.
CAUTION:
This test involves high-pressure fuel and electricity.
Keep the injector free of sparks during the test.
Take every precaution regarding safe handling of
both the fuel and electricity.
Perform this test in a safe area, and avoid any sparks
or flame.
Do not smoke.
(1) Pull out the fuel tube connector from a new fuel
tube.
HINT:
Part No. 23801 - 20190
(2) Connect SST and the fuel tube connector to the fuel
pipe.
SST 09268-41047 (95336-08070)
CAUTION:
After taking the precautions, connect the quick connector.
(3) Install the grommet and O-ring to the fuel injector.
(4) Connect SST (a union and hose) to the fuel injector,
then hold the fuel injector and union with SST (a
clamp).
SST 09268- 41047 (09268- 41110, 09268- 41300,
95336-08070)
(5) Put the fuel injector into a graduated cylinder.
HINT:
Install a suitable vinyl tube to the fuel injector to contain the gas-
oline spray.
Page 589 of 969
A86390
SST
B05331
A84685
Ohmmeter
A84686Battery
- FUELFUEL SYSTEM (3MZ-FE)
11-9
2037 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(6) Operate the fuel pump (see page 11-5).
(7) Connect SST (a wire) to the
fuel injector and battery
for 15 seconds, then measure the injection volume
with the graduated cylinder. Test each fuel injector
2 or 3 times.
SST 09842-30070
Standard:
Injection VolumeDifference between Cylenders
60 to 73 cm3
(3.7 to 4.5 cu in.)
per 15 seconds13 cm3 (0.8 cu in.) or less
NOTICE:
Always do the switching at the battery side.
If the injection volume is not as specified, replace the fuel injec-
tor.
(c) Inspect the leakage.
(1) In the condition of step (7), disconnect the test
probes of SST (a wire) from the battery, then check
the fuel leakage from the fuel injector.
Fuel drop: 1 drop or less per 12 minutes
If the fuel drop is not as specified, replace the fuel injector.
2. INSPECT FUEL PUMP
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
1 - 20.2 to 3.0 W at 20C (68F)
If the resistance is not as specified, replace the fuel pump.
(b) Check the operation.
(1) Apply battery positive voltage across the terminals.
(2) Check that the fuel pump operates.
NOTICE:
These tests must be performed quickly (within 10 se-
conds) to prevent burnout of the coil.
Keep the fuel pump as far away from the battery as
possible.
Always do the switching at the battery side.
If the operation is not as specified, replace the fuel pump.
Page 616 of 969
120C1-02
G37992
Voltmeter E9 E8
A86347DLC3
Hand-held Tester
A86385
Lean
14.7 3.3 V
RichAir
Fuel
Ratio
Time Keep the engine speed
- EMISSION CONTROLEMISSION CONTROL SYSTEM (3MZ-FE)
12-3
2064 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
ON-VEHICLE INSPECTION
1. INSPECT AIR FUEL RATIO COMPENSATION SYSTEM
(a) Inspect the voltage.
(1) Turn the ignition switch ON.
(2) Using a voltmeter, measure the voltage between
the terminals of the ECM.
Standard:
Tester ConnectionSpecified Condition
A1A+ (E9-22) - E1 (E8-1)3.3 V
A1A- (E9-30) - E1 (E8-1)3.0 V
A2A+ (E9-23) - E1 (E8-1)3.3 V
A2A- (E9-31) - E1 (E8-1)3.0 V
CAUTION:
Connect the test leads from the back side of the ECM con-
nector to the terminals.
HINT:
The voltage between the terminals of the ECM is constant re-
gardless of the voltage output from the air fuel ratio sensor (A/F
sensor).
(b) Check the operation.
(1) Connect the hand-held tester to the DLC3.
(2) Enter ºDIAGNOSIS/ENHANCED OBD II/DATA
LISTº, then select ºAFS B1 S1º and ºAFS B2 S1º to
display the monitor.
(3) Warm up the A/F sensor with the engine speed at
2,500 rpm for approximately 2 minutes.
(4) Keep the engine speed at 2,500 rpm, then confirm
that the waveform of ºAFS B1 S1º and ºAFS B2 S1º
are similar as shown in the illustration.
HINT:
The waveform in the illustration is a sample.
Only the hand-held tester displays the waveform of the
A/F sensor.
(c) Confirm that the display of ºDATA LISTº - ºO2S B1 S2º
and ºO2S B2 S2º fluctuates up and down between 0 V
and 1 V with the engine speed at 2,500 rpm.