2005 LEXUS ES300 air control system

E50573
I22117
Condition : Periodically cools and then fails to cool
- HEATER & AIR CONDITIONERREFRIGERANT
55-3
2618 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
2. INSPECT REFRIGERANT PRESSURE WITH MAN-
IFOLD GAUGE SET
(a) This is a method in witch the trouble is located by using
a manifold gauge set. Read the manifold gauge pressure
when the these conditions are established.
Test conditions:

Temperature at the air inlet with the switch set
at RECIRC is 30 - 35 °C (86 - 95 °F)

Engine running at 1,500 rpm

Blower speed control switch at ºHIº position

Temperature control dial at ºCOOLº position

A/C switch ON

Fully open doors
(1) Normally functioning refrigeration system.
Gauge reading:
Low pressure side:
0.15 - 0.25 MPa (1.5 - 2.5 kgf/cm
2)
High pressure side:
1.37 - 1.57 MPa (14 - 16 kgf/cm
2)
(2) Moisture present in refrigeration system.
SymptomProbable causeDiagnosisRemedy
During operation, pressure on low
pressure side sometimes become
a vacuum and sometime normal
Moisture in refrigerating system
freezes at expansion valve orifice
causing a temporary stop of cycle,
however, when it melts, normal
state is restored.
Drier in oversaturected state

Moisture in refrigerating system
freezes at expansion valve orifice
and blocks circulation of refriger-
ant(1) Replace condenser
(2) Remove moisture in cycle by
repeatedly evacuating air
(3) Supply proper amount of new
refrigerant

01-8- INTRODUCTIONTERMS FOR AUTOMATIC TRANSAXLE REPAIR
MANUAL
8 Author
: Date
:
U151E, U151F A/T REPAIR MANUAL (RM1021U) ISC
Idle Speed Control-
KSKnock SensorKnock Sensor
MAFMass Air FlowAir Flow Meter
MAPManifold Absolute PressureManifold Pressure
Intake Vacuum
MCMixture Control
Electric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
MDPManifold Differential Pressure-
MFIMultiport Fuel InjectionElectronic Fuel Injection (EFI)
MILMalfunction Indicator LampCheck Engine Light
MSTManifold Surface temperature-
MVZManifold Vacuum Zone-
NVRAMNon-V olatile Random Access Memory-
O2SOxygen SensorOxygen Sensor, O2 Sensor (O2S)
OBDOn-Board DiagnosticOn-Board Diagnostic (OBD)
OCOxidation Catalytic ConverterOxidation Catalyst Converter (OC), CC0
OPOpen LoopOpen Loop
PAIRPulsed Secondary Air InjectionAir Suction (AS)
PCMPowertrain Control Module-
PNPPark/Neutral Position-
PROMProgrammable Read Only Memory-
PSPPower Steering Pressure-
PTOXPeriodic Trap OxidizerDiesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAMRandom Access MemoryRandom Access Memory (RAM)
RMRelay Module-
ROMRead Only MemoryRead Only Memory (ROM)
RPMEngine SpeedEngine Speed
SCSuperchargerSupercharger
SCBSupercharger Bypass-
SFISequential Multiport Fuel InjectionElectronic Fuel Injection (EFI), Sequential Injection
SPLSmoke Puff Limiter-
SRIService Reminder Indicator-
SRTSystem Readiness Test-
STScan Tool-
TBThrottle BodyThrottle Body
TBIThrottle Body Fuel InjectionSingle Point Injection
Central Fuel Injection (Ci)
TCTurbochargerTurbocharger
TCCTorque Converter ClutchTorque Converter
TCMTransmission Control ModuleTransmission ECU (Electronic Control Unit)
TPThrottle PositionThrottle Position
TRTransmission Range-
TVVThermal Vacuum ValveBimetallic Vacuum Switching Valve (BVSV)
Thermostatic Vacuum Switching Valve (TVSV)
TWCThree-W ay Catalytic ConverterThree-W ay Catalytic (TWC)
CC
RO
TWC+OCThree-W ay + Oxidation Catalytic ConverterCCR + CCO
VA FVolume Air FlowAir Flow Meter
VRVoltage RegulatorVoltage Regulator
VSSVehicle Speed SensorVehicle Speed Sensor (Read Switch Type)
WOTWide Open ThrottleFull Throttle

40067-09
C63995IG
E STP
- AUTOMATIC TRANSMISSION / TRANSSHIFT LOCK SYSTEM
40-31
2546 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
SHIFT LOCK SYSTEM
ON-VEHICLE INSPECTION
1. CHECK SHIFT LOCK OPERATION
(a) Shift the shift lever to P position.
(b) Turn the ignition switch to LOCK.
(c) Check that the shift lever cannot be shifted to any other positions other than P.
(d) Turn the ignition switch to ON, depress the brake pedal and check that the shift lever can be shifted
to any other positions.
2. CHECK SHIFT LOCK RELEASE BUTTON OPERATION
(a) Using a small screwdriver, remove the shift lock release cover.
(b) When operating the shift lever with the shift lock release button pressed, check that the lever can be
shifted to any position other than P.
3. CHECK KEY INTERLOCK OPERATION
(a) Turn the ignition switch to ON.
(b) Depress the brake pedal and shift the shift lever to any other position other than P.
(c) Check that the ignition key cannot be turned to LOCK.
(d) Shift the shift lever to P position, turn the ignition key to LOCK and check that the ignition key can be
removed.
4. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY
(a) Using a voltmeter, measure the voltage at each terminal.
HINT:
Do not disconnect the shift lock control unit assembly connec-
tor.
TerminalMeasuring ConditionVoltage (V)
3 (STP) - 1 (E)Depress brake pedal10 - 14
3 (STP) - 1 (E)Release brake pedal0
5 (IG) - (E)Ignition switch ON10 - 14
5 (IG) - (E)Ignition switch OFF0

C93272E
40-32
- AUTOMATIC TRANSMISSION / TRANSSHIFT LOCK SYSTEM
2547 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(b) Using an ohmmeter, measure the resistance at terminal
E (1) and body ground.
HINT:
Do not disconnect the shift lock control unit assembly connec-
tor.
TerminalMeasuring ConditionSpecified Value
1 (E) - Body groundAlwaysContinuity

141J9-02
A60072
- ENGINE MECHANICALPARTIAL ENGINE ASSY (3MZ-FE)
14-29
2121 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
REPLACEMENT
1. DISCHARGE FUEL SYSTEM PRESSURE (See page 11-1)
2. DISCONNECT BATTERY NEGATIVE TERMINAL
3. REMOVE FRONT WHEELS
4. REMOVE ENGINE UNDER COVER NO.1
5. REMOVE ENGINE UNDER COVER NO.2
6. REMOVE FRONT FENDER APRON SEAL RH
7. DRAIN ENGINE COOLANT (See page 16-9)
8. DRAIN ENGINE OIL (See page 17-20)
9. DRAIN AUTOMATIC TRANSAXLE FLUID (See page 30-8)
10. REMOVE V-BANK COVER SUB-ASSY (See page 10-1 1)
11. REMOVE RADIATOR LOWER AIR DEFLECTOR (See page 19-5)
12. REMOVE BATTERY
13. REMOVE BATTERY TRAY
14. REMOVE AIR CLEANER INLET ASSY (See page 19-5)
15. REMOVE AIR CLEANER ASSY (See page 19-5)
16. REMOVE AIR CLEANER BRACKET (See page 19-5)
17. REMOVE AIR CLEANER INLET NO.1 (See page 19-5)
18. REMOVE INTAKE AIR RESONATOR SUB-ASSY
(a) Remove the clip and bolt, then remove the intake air resonator.
19. REMOVE V (COOLER COMPRESSOR TO CRANKSHAFT PULLEY) BELT NO.1
(See page 14-5)
20. REMOVE GENERATOR ASSY (See page 19-21)
21. REMOVE ENGINE MOVING CONTROL ROD (See page 14-79)
22. REMOVE ENGINE MOUNTING STAY NO.2 RH (See page 14-79)
23. REMOVE GENERATOR BRACKET NO.2 (See page 14-79)
24. REMOVE GENERATOR BELT ADJUSTING BAR (See page 17-9)
25. SEPARATE COMPRESSOR AND MAGNETIC CLUTCH (See page 17-9)
26. SEPARATE TRANSMISSION CONTROL CABLE ASSY (See page 40-44)
27. DISCONNECT UNION TO CHECK VALVE HOSE
28. DISCONNECT FUEL VAPOR FEED HOSE NO.1
29. DISCONNECT FUEL PIPE SUB-ASSY NO.1 (See page 11-1)
30. DISCONNECT HEATER INLET WATER HOSE
31. DISCONNECT HEATER OUTLET WATER HOSE
32. DISCONNECT RADIATOR HOSE INLET
33. DISCONNECT RADIATOR HOSE OUTLET
34. DISCONNECT OIL COOLER INLET HOSE
35. DISCONNECT OIL COOLER OUTLET HOSE
36. DISCONNECT OIL RESERVOIR TO PUMP HOSE NO.1

14-102
- ENGINE MECHANICALCAMSHAFT (RH BANK) (3MZ-FE)
2194 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
55. INSTALL INTAKE AIR SURGE TANK (See page 11-13)
56. INSTALL EMISSION CONTROL VALVE SET (See page 11-13)
57. INSTALL AIR CLEANER CAP SUB-ASSY (See page 10-1 1)
58. CHECK CONNECTION OF VACUUM HOSE (See page 14-29)
59. INSTALL V-BANK COVER SUB-ASSY (See page 10-1 1)
60. INSTALL FRONT SUSPENSION UPPER BRACE CENTER (W/O TEMS) (See page 10-1 1)
61. INSTALL FRONT WHEEL RH (See page 14-5)
62. ADD ENGINE COOLANT (See page 16-9)
63. CHECK FOR ENGINE COOLANT LEAKS (See page 16-1)
64. SYSTEM INITIALIZATION (See page 19-15)

- ENGINE MECHANICALCAMSHAFT (LH BANK) (3MZ-FE)
14-1 11
2203 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
34. INSPECT TIMING BELT (See page 14-79)
35. INSTALL TIMING BELT (See page 14-79)
SST 09960-10010 (09962-01000, 09963-01000)
36. INSTALL TIMING BELT TENSIONER ASSY (See page 14-79)
37. INSTALL TIMING BELT GUIDE NO.2 (See page 14-79)
38. INSTALL ENGINE MOUNTING BRACKET RH (See page 14-79)
39. INSTALL TIMING BELT NO.2 COVER (See page 14-79)
40. INSTALL TIMING BELT NO.1 COVER (See page 14-79)
41. INSTALL CRANKSHAFT PULLEY (See page 14-79)
SST 09213-54015 (91651-60855), 09330-00021
42. INSTALL GENERATOR BRACKET NO.2 (See page 14-79)
43. INSTALL ENGINE MOUNTING STAY NO.2 RH (See page 14-79)
44. INSTALL ENGINE MOVING CONTROL ROD (See page 14-79)
45. INSPECT VALVE CLEARANCE (See page 14-7)
46. ADJUST VALVE CLEARANCE (See page 14-7)
SST 09248-55040 (09248-05410, 09248-05420)
47. INSTALL VANE PUMP V BELT (See page 14-5)
48. INSTALL V (COOLER COMPRESSOR TO CRANKSHAFT PULLEY) BELT NO.1
(See page 14-5)
49. INSPECT DRIVE BELT DEFLECTION AND TENSION (See page 14-1)
50. INSTALL CYLINDER HEAD COVER SUB-ASSY LH (See page 14-7)
51. INSTALL IGNITION COIL ASSY (See page 14-7)
52. INSTALL V-BANK COVER SUB-ASSY (See page 10-1 1)
53. INSTALL FRONT WHEEL RH (See page 14-5)
54. ADD ENGINE COOLANT (See page 16-9)
55. CHECK FOR ENGINE COOLANT LEAKS (See page 16-1)
56. SYSTEM INITIALIZATION (See page 19-15)

141JH-01
A86571
14-120
- ENGINE MECHANICALCYLINDER HEAD GASKET (3MZ-FE)
2212 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
REPLACEMENT
1. DISCHARGE FUEL SYSTEM PRESSURE (See page 11-1)
2. DISCONNECT BATTERY NEGATIVE TERMINAL
3. DRAIN ENGINE COOLANT (See page 16-9)
4. DRAIN ENGINE OIL (See page 17-20)
5. REMOVE FRONT WHEEL RH
6. REMOVE FRONT SUSPENSION UPPER BRACE CENTER (W/O TEMS) (See page 10-1 1)
7. REMOVE V-BANK COVER SUB-ASSY (See page 10-1 1)
8. REMOVE AIR CLEANER CAP SUB-ASSY (See page 10-1 1)
9. REMOVE EMISSION CONTROL VALVE SET (See page 11-13)
10. REMOVE INTAKE AIR SURGE TANK (See page 11-13)
11. REMOVE INTAKE MANIFOLD (See page 10-16)
12. REMOVE WATER OUTLET (See page 10-16)
13. REMOVE FRONT FENDER APRON SEAL RH
14. REMOVE V (COOLER COMPRESSOR TO CRANKSHAFT PULLEY) BELT NO.1
(See page 14-5)
15. REMOVE VANE PUMP V BELT (See page 14-5)
16. REMOVE ENGINE MOVING CONTROL ROD (See page 14-79)
17. REMOVE ENGINE MOUNTING STAY NO.2 RH (See page 14-79)
18. REMOVE GENERATOR BRACKET NO.2 (See page 14-79)
19. REMOVE CRANKSHAFT PULLEY (See page 14-79)
SST 09213-54015 (91651-60855), 09330-00021, 09950-50013 (09951-05010, 09952-05010,
09953-05020, 09954-05031)
20. REMOVE TIMING BELT NO.1 COVER
21. REMOVE TIMING BELT NO.2 COVER (See page 14-79)
22. REMOVE ENGINE MOUNTING BRACKET RH (See page 14-79)
23. REMOVE TIMING BELT GUIDE NO.2
24. REMOVE TIMING BELT (See page 14-79)
25. REMOVE TIMING BELT IDLER SUB-ASSY NO.2
26. REMOVE CAMSHAFT TIMING PULLEY (See page 14-93)
SST 09960-10010 (09962-01000, 09963-01000), 09249-63010
27. REMOVE TIMING BELT NO.3 COVER (See page 14-93)
28. SEPARATE VANE PUMP ASSY
29. REMOVE EXHAUST PIPE NO.1 SUPPORT BRACKET FRONT (See page 15-2)
30. REMOVE EXHAUST PIPE NO.1 SUPPORT BRACKET REAR (See page 15-2)
31. REMOVE EXHAUST PIPE ASSY FRONT (See page 15-2)
32. REMOVE EXHAUST MANIFOLD HEAT INSULATOR
NO.1
(a) Disconnect the air fuel ratio sensor connector.
(b) Remove the 3 bolts and exhaust manifold heat insulator.