Page 725 of 969

51018-15
F40449
F40897
Normal
Abnormal
F40898
- POWER STEERINGPOWER STEERING SYSTEM
51-3
2578 Author: Date:
ON-VEHICLE INSPECTION
1. INSPECT DRIVE BELT
(a) Visually check the belt for excessive wear, frayed cords,
etc.
If any defect is found, replace the drive belt.
HINT:
Cracks on the rib side of a belt are considered acceptable. If the
missing chunks from the ribs are found on the belt, it should be
replaced.
2. BLEED POWER STEERING SYSTEM
(a) Check the fluid level.
(b) Jack up the front of the vehicle and support it with the
stands.
(c) Turn the steering wheel.
(1) With the engine stopped, turn the wheel slowly from
lock to lock several times.
(d) Lower the vehicle.
(e) Start the engine.
(1) Run the engine at idle for a few minutes.
(f) Turn the steering wheel.
(1) With the engine idling, turn the wheel to left or right
full lock position and keep it there for 2 - 3 seconds,
then turn the wheel to the opposite full lock position
and keep it there for 2 - 3 seconds.
(2) Repeat (1) several times.
(g) Stop the engine.
(h) Check for forming or emulsification.
Especially, if the system has to be bled twice because of foam-
ing or emulsification, check for fluid leaks in the system.
(i) Check the fluid level.
3. CHECK FLUID LEVEL
(a) Keep the vehicle level.
(b) With the engine stopped, check the fluid level in the oil
reservoir.
If necessary, add fluid.
Fluid: ATF DEXRON® II or III
HINT:
Check that the fluid level is within the HOT LEVEL range on the
reservoir cap. If the fluid is cold, check that it is within the COLD
LEVEL range.
Page 726 of 969

F40897
NormalAbnormal
R11786Engine Idling Engine Stopped5 mm (0.20 in.)
or less 51-4
- POWER STEERINGPOWER STEERING SYSTEM
2579 Author: Date:
(c) Start the engine and run it at idle.
(d) Turn the steering wheel from lock to lock several times to
raise fluid temperature.
Fluid temperature: 75 - 80°C (167 - 176°F)
(e) Check for foaming or emulsification.
If foaming or emulsification is identified, bleed the power steer-
ing system.
(f) With the engine idling, measure the fluid level in the oil
reservoir.
(g) Stop the engine.
(h) Wait a few minutes and remeasure the fluid level in the oil
reservoir.
Maximum fluid level rise: 5 mm (0.20 in.)
If a problem is found, bleed the power steering system.
(i) Check the fluid level.
4. CHECK STEERING FLUID PRESSURE
(a) Disconnect the pressure feed tube assy from the rack &
pinion power steering gear assy (See page 51-21).
(b) Connect SST, as shown in the illustration.
SST 09640-10010 (09641-01010, 09641-01020,
09641-01030)
NOTICE:
Check that the valve of the SST is in the open position.
(c) Bleed the power steering system.
(d) Start the engine and run it at idle.
(e) Turn the steering wheel from lock to lock several times to
raise fluid temperature.
Fluid temperature: 75 - 80 °C (167 - 176 °F)
Page 797 of 969

190SJ-01
A01260
A82941
White Red Blue 19-16
- STARTING & CHARGINGCHARGING SYSTEM (3MZ-FE)
2348 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
ON-VEHICLE INSPECTION
1. INSPECT BATTERY (MAINTENANCE- FREE BAT-
TERY)
(a) Check the battery electrolyte level.
(1) Check the electrolyte quantity of each cell.
If the electrolyte quantity is below the recommended amount,
replace the battery.
(b) Check the battery voltage.
(1) If it has been less than 20 minutes since you
stopped driving the vehicle or since the engine was
stopped, turn the ignition switch and electrical sys-
tems (headlight, blower motor, rear defogger etc.)
to the ON position for 60 seconds. This will remove
the surface charge on the battery.
(2) Turn the ignition switch and electrical systems OFF.
(3) Using a voltmeter, measure the battery voltage be-
tween the negative (-) and positive (+) terminals of
the battery.
Standard voltage: 12.5 to 12.9 V at 20C (68F)
If the voltage is less than the specification, charge the battery.
(c) Check the indicator as shown in the illustration.
HINT:
Blue: OK
White: Charging Necessary
Red: Insufficient Water
2. INSPECT BATTERY (EXCEPT MAINTENANCE-FREE
BATTERY)
(a) Check the battery electrolyte level.
(1) Check the electrolyte quantity of each cell.
If the electrolyte quantity is below the recommended amount,
add distilled water.
Page 798 of 969

A01259
A01260
A82941
White Red Blue
B00543
- STARTING & CHARGINGCHARGING SYSTEM (3MZ-FE)
19-17
2349 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(b) Check the battery specific gravity.
(1) Check the specific gravity of each cell.
Standard specific gravity: 1.25 to 1.29 at 20C (68F)
If the specific gravity is less than specification, charge the bat-
tery.
(c) Check the battery voltage.
(1) If it has been less than 20 minutes since you
stopped driving the vehicle or since the engine was
stopped, turn the ignition switch and electrical sys-
tems (headlight, blower motor, rear defogger etc.)
to the ON position for 60 seconds. This will remove
the surface charge on the battery.
(2) Turn the ignition switch and electrical systems OFF.
(3) Using a voltmeter, measure the battery voltage be-
tween the negative (-) and positive (+) terminals of
the battery.
Standard voltage: 12.5 to 12.9 V at 20C (68F)
If the voltage is less than the specification, charge the battery.
(d) Check the indicator as shown in the illustration.
HINT:
Blue: OK
White: Charging Necessary
Red: Insufficient Water
3. INSPECT BATTERY TERMINALS, FUSIBLE LINK AND FUSES
(a) Visually check the battery terminals.
(1) Check that the battery terminals are not loosened or corroded.
(b) Visually check the fusible link and fuses.
(1) Check that there is continuity of the fusible links, high current fuses and regular fuses.
4. INSPECT V-RIBBED BELT
(a) Visually check the belt for excessive wear, frayed cords,
etc.
If any defects are found, replace the v-ribbed belt.
Cracks on the rib side of the belt are considered ac-
ceptable.
If the belt has chunks missing from the ribs, it should
be replaced.
Page 820 of 969

C90693
Screw Extractor
C90695
C90696
- STEERING COLUMNSTEERING COLUMN ASSY
50-1 1
2572 Author: Date:
24. REMOVE STEERING COLUMN UPPER W/SWITCH
BRACKET ASSY
(a) Using a centering punch, mark the center of the 2 ta-
pered-head bolts.
(b) Using a 3 - 4 mm (0.12 - 0.16 in.) drill, drill in to the 2 bolts.
(c) Using a screw extractor, remove the 2 bolts and steering
column upper w/switch bracket assy.
25. REMOVE IGNITION SWITCH LOCK CYLINDER ASSY
(a) Place the ignition switch lock cylinder assy at the ACC
position.
(b) Push down the stop pin with a screwdriver, and pull out
the ignition switch lock cylinder assy.
26. REMOVE UN-LOCK WARNING SWITCH ASSY
(a) Disconnect the un-lock warning switch assy connector
from the ignition or starter switch assy.
(b) Remove the un-lock warning switch assy by pushing up
the center part and releasing the 2 screws.
27. REMOVE IGNITION OR STARTER SWITCH ASSY
(a) Remove the 2 screws and ignition or starter switch assy from the steering column upper w/switch
bracket assy.
28. INSTALL IGNITION OR STARTER SWITCH ASSY
(a) Install the ignition switch assy to the steering column upper w/switch bracket assy with the 2 screws.
29. INSTALL UN-LOCK WARNING SWITCH ASSY
(a) Install the un-lock warning switch assy.
(b) Connect the un-lock warning switch assy connector to the ignition or starter switch assy.
30. INSTALL IGNITION SWITCH LOCK CYLINDER ASSY
(a) Make sure the ignition switch lock cylinder assy at the ACC position.
(b) Install the ignition switch lock cylinder assy.
31. INSPECT STEERING LOCK OPERATION
(a) Check that the steering lock mechanism is activated when removing the key.
(b) Check that the steering lock mechanism is deactivated when inserting the key and turning it to ACC
position.
Page 960 of 969

RESET MEMORY FUNCTION ± TC002-03 Revised May 5, 2003
Page 2 of 3
SPECIAL SERVICE TOOLS (SSTs)PART NUMBERQUANTITY
Lexus Diagnostic Tester Kit*010012701
CAN Interface Module Kit*010027441
12 Megabyte Diagnostic Tester Program Card
with version 12.01a Software (or later)*01002593-0051
* Essential SSTs.
NOTE:
Additional Diagnostic Tester Kits, CAN Interface Modules, Program Cards or other
SSTs may be ordered by calling SPX/OTC at 1-800-933-8335.
1. Connect the Lexus Diagnostic Tester to the vehicle.
2. Reset the ECM (PCM). Refer to the procedures below.
DO YOU WISH TO
RESET THE ECM?
[YES] to CONTINUE
[NO] to EXIT
2: CUSTOMIZE
3: ECU REPROGRAMFUNCTION SELECT FOR
NORTH AMERICA
B
*APPLICATION SELECT*
A
1: DIAGNOSISDIAGNOSTIC MENU
ENGINE
C
DO NOT USE THIS
FUNCTION UNLESS
INSTRUCTED BY
REPAIR MANUAL.RESET MEMORY
E
RESET MEMORY
NOTICE
D
[YES]
F
1: OBD/MOBD
3: CARB OBD II
4: BREAK±OUT BOX
5: NVH
6: AUTOPROBE
7: 02 RPM CHECK
8: SNAPSHOT REVIEW
9: SETUP
0: GAS ANALYSIS2: ENHANCED OBD II1: DATA LIST
2: DTC INFO
3: ACTIVE TEST
4: SNAPSHOT
5: SYSTEM CHECK
6: RESET MEMORY
7: MONITOR STATUS
8: CHECK MODE
6: RESET MEMORY
ONLY USE AFTER
REPLACING THE ENGINE,
AUTO TRANS, OR ECM
ON CERTAIN VEHICLES.EXECUTING THIS
FUNCTION WILL RESET
THE LEARNED VALUES
IN THE ECM.RESET MEMORY
RESETTING COMPLETE
PRESS
[ENTER]
3. Start the engine and warm it up to normal operating temperatures before test±driving.
4. Perform a thorough test drive with several accelerations from a stop with ªlight
throttleº application until proper transmission shifting is verified.
Required
SSTs
Reset
Procedure 1
Page 961 of 969
RESET MEMORY FUNCTION ± TC002-03 Revised May 5, 2003
Page 3 of 3
1. Disconnect the negative battery cable for 5 minutes.
2. Reconnect battery cable.
3. Start the engine and warm it up to normal operating temperatures before test±driving.
4. Perform a thorough test drive with several accelerations from a stop with ªlight
throttleº application until proper transmission shifting is verified.Reset
Procedure 2