2005 LEXUS ES300 relay

I31636
I31637
I31497
55-18
- HEATER & AIR CONDITIONERAIR CONDITIONING RADIATOR ASSY
2633 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
5. DISCONNECT HEATER INLET WATER HOSE
HINT:
Disconnect in the same way as the heater outlet water hose.
6. REMOVE INSTRUMENT PANEL SAFETY PAD SUB-ASSY (See page 71-1 1)
HINT:
Refer to the instructions for removal of the instrument panel safety pad sub-assy.
7. REMOVE AIR DUCT REAR NO.1
(a) Remove the 2 screws, bolt and nut.
(b) Remove the air duct rear No. 1.
8. REMOVE AIR DUCT REAR NO.2
(a) Remove the 2 screws, bolt and nut.
(b) Remove the air duct rear No. 2.
9. REMOVE CONSOLE BOX DUCT NO.1
(a) Remove the clip and console box duct No. 1.
10. DISCONNECT FLOOR SHIFT PARKING LOCK CABLE ASSY
11. REMOVE WINDSHIELD WIPER RELAY ASSY
12. REMOVE HEADLAMP LEVELING ECU ASSY

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

320E1-02
- BRAKEBRAKE ACTUATOR ASSY (W/O VSC)
32-47
2481 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
BRAKE ACTUATOR ASSY (W/O VSC)
ON-VEHICLE INSPECTION
1. CONNECT HAND-HELD TESTER:
(a) Connect the hand-held tester to the DLC3.
(b) Start the engine and run it at idle.
(c) Select the ACTIVE TEST mode on the hand-held tester.
HINT:
Please refer to the hand-held tester operator's manual for further details.
2. INSPECT ACTUATOR MOTOR OPERATION
(a) With the motor relay ON, check the actuator motor operation noise.
(b) Turn the motor relay OFF.
(c) Depress the brake pedal and hold it for about 15 seconds. Check that the brake pedal cannot be de-
pressed.
(d) With the motor relay ON, check that the pedal does not pulsate.
NOTICE:
Do not keep motor relay ON for more than 5 seconds continuously. When operating it continuously,
set the interval of more than 20 seconds.
(e) Turn the motor relay OFF and release the brake pedal.
3. INSPECT RIGHT FRONT WHEEL OPERATION
NOTICE:
Never turn ON the solenoid which is not described below.
(a) With the brake pedal depressed, perform the following operations.
(b) Turn the SFRH and SFRR solenoid ON simultaneously, and check that the pedal cannot be depressed.
NOTICE:
Do not keep solenoid ON for more than 10 seconds continuously. When operating it continuously,
set the interval of more than 20 seconds.
(c) Turn the SFRH and SFRR solenoid OFF simultaneously, and check that the pedal can be depressed.
(d) Turn the motor relay ON, and check that the pedal returns.
NOTICE:
Do not keep motor relay ON for more than 5 seconds continuously. When operating it continuously,
set the interval of more than 20 seconds.
(e) Turn the motor relay OFF and release the brake pedal.
4. INSPECT OTHER WHEEL OPERATION
(a) As in the same procedure, check the solenoids of other wheels.
HINT:
Left front wheel: SFLH, SFLR
Right rear wheel: SRRH, SRRR
Left rear wheel: SRLH, SRLR

3203J-09
32-50
- BRAKEBRAKE ACTUATOR ASSY (W/VSC)(From July, 2003)
2484 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
BRAKE ACTUATOR ASSY (W/VSC)(From July, 2003)
ON-VEHICLE INSPECTION
1. CONNECT HAND-HELD TESTER:
(a) Connect the hand-held tester to the DLC3.
(b) Start the engine and run it at idle.
(c) Select the ACTIVE TEST mode on the hand-held tester.
HINT:
Please refer to the hand-held tester operator's manual for further details.
2. INSPECT ACTUATOR MOTOR OPERATION
(a) With the motor relay ON, check the actuator motor operation noise.
(b) Turn the motor relay OFF.
(c) Depress the brake pedal and hold it for about 15 seconds. Check that the brake pedal cannot be de-
pressed.
(d) With the motor relay ON, check that the pedal does not pulsate.
NOTICE:
Do not keep motor relay ON for more than 5 seconds continuously. When operating it continuously,
set the interval of more than 20 seconds.
(e) Turn the motor relay OFF and release the brake pedal.
3. INSPECT RIGHT FRONT WHEEL OPERATION
NOTICE:
Never turn ON the solenoid which is not described below.
(a) With the brake pedal depressed, perform the following operations.
(b) Turn the SFRH and SFRR solenoid ON simultaneously, and check that the pedal cannot be depressed.
NOTICE:
Do not keep solenoid ON for more than 10 seconds continuously. When operating it continuously,
set the interval of more than 20 seconds.
(c) Turn the SFRH and SFRR solenoid OFF simultaneously, and check that the pedal can be depressed.
(d) Turn the motor relay ON, and check that the pedal returns.
NOTICE:
Do not keep motor relay ON for more than 5 seconds continuously. When operating it continuously,
set the interval of more than 20 seconds.
(e) Turn the motor relay OFF and release the brake pedal.
4. INSPECT OTHER WHEEL OPERATION
(a) As in the same procedure, check the solenoids of other wheels.
HINT:
Left front wheel: SFLH, SFLR
Right rear wheel: SRRH, SRRR
Left rear wheel: SRLH, SRLR

320OI-03
F42754
Adjustable Pedal
Relay
Engine Room J/B:
F42755
1 2 3
5
32-62
- BRAKEADJUSTABLE PEDAL RELAY(From August, 2002)
2496 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
ADJUSTABLE PEDAL RELAY (From August, 2002)
INSPECTION
1. REMOVE ADJUSTABLE PEDAL RELAY
(a) Remove the adjustable pedal relay from the engine room
J/B.
2. INSPECT ADJUSTABLE PEDAL RELAY
ConditionTester conditionSpecified condition
Constant1 - 2ContinuityConstant3 - 5No continuity
Apply +B between termi-
nals 1 and 23 - 5continuity
3. INSTALL ADJUSTABLE PEDAL RELAY
(a) Install the adjustable pedal relay to the engine room J/B.

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.

110XR-01
A62391
Circuit Opening Relay
- FUELFUEL SYSTEM (3MZ-FE)
11-1
2029 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
FUEL SYSTEM (3MZ-FE)
PRECAUTION
1. PRECAUTION
(a) Before working on the fuel system, disconnect the engine wire No. 3 (battery negative terminal) from
battery.
(b) Do not smoke or work near open flame when working on the fuel system.
(c) Keep gasoline away from the rubber or leather parts.
2. DISCHARGE FUEL SYSTEM PRESSURE
CAUTION:

Do not disconnect any parts of the fuel system pres-
sure until you have discharging the fuel system pres-
sure.

Even after discharge the fuel pressure, place a shop
rag over fittings as you separate them in order to re-
duce risk of fuel spray on yourself or in the engine
compartment.
(a) Disconnect the engine wire No. 3 (battery negative termi-
nal).
(b) Remove the circuit opening relay from the engine room
relay block.
(c) Connect the engine wire No. 3 (battery negative terminal).
Torque: 5.4 NVm (55 kgfVcm, 48 in.Vlbf)
(d) Start the engine. After the engine has stopped on its own,
turn the ignition switch OFF.
HINT:
There is a case that DTC P0171 (system to lean) is output.
(e) Check that the engine does not start.
(f) Remove the fuel tank cap, then let the air out of the fuel
tank.
(g) Disconnect battery negative terminal.
(h) Reinstall the circuit opening relay.
3. FUEL SYSTEM
(a) When disconnecting the high fuel pressure line, a large
amount of gasoline will spill out. So observe these proce-
dures.
(1) Work in order to prevent gasoline from spilling out.
(2) Disconnect the fuel pump tube (see page 11-20).
(3) Drain the fuel remaining inside the fuel pump tube.

A86347DLC3
Hand-held Tester
A62390
FP
+B
- FUELFUEL SYSTEM (3MZ-FE)
11-7
2035 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
2. CHECK FUEL PUMP OPERATION AND FUEL LEAK
(a) When using the hand-held tester.
(1) Connect the hand-held tester to the DLC3.
(2) Turn the ignition switch ON and the hand-held tes-
ter ON.
NOTICE:
Do not start the engine.
(3) Select the ACTIVE TEST mode on the hand-held
tester.
(4) If you need help to select the ACTIVE TEST mode
on the hand-held tester, refer to the hand-held tes-
ter operator's manual.
(b) When not using the hand-held tester.
(1) Remove the circuit opening relay.
(2) Using a service wire, connect terminals FP and +B
of the engine room relay block.
NOTICE:
Pay due attention to the terminal connecting position to
avoid a malfunction.
(3) Turn the ignition switch ON, and check that the fuel
pump operates.
NOTICE:
Do not start the engine.
(c) Check that there are no fuel leaks after doing mainte-
nance anywhere on the fuel system.