Lexus ES300 (1997 year). Manual — part 344

S05335

LEXUS hand–held tester

DLC3

BR3904

ON

OFF

0.13 sec.

0.13 sec.

–

DIAGNOSTICS

AUTOMATIC TRANSAXLE

DI–153

305

1997 LEXUS ES300 (RM511U)

3.

INSPECT DIAGNOSIS (CHECK MODE)

LEXUS hand–held tester only: Compared to the normal mode,
the check mode has high sensing ability to detect malfunctions.
Furthermore, the same diagnostic items which are detected in
Normal mode can also be detected in Check mode.
(a)

DTC CHECK
(1)

Check the initial conditions.

Battery positive voltage 11 V or more.

Throttle valve fully closed.

transaxle in P position.

Air conditioning switched off.

(2)

Turn the ignition switch OFF.

(3)

Prepare a LEXUS hand–held tester.

(4)

Connect the LEXUS hand–held tester to DLC3 at
the lower of the instrument panel.

(5)

Turn the ignition switch ON and switch the LEXUS
hand–held tester ON.

(6)

Switch the LEXUS hand–held tester from Normal
mode to Check mode (Check that the MIL flashes).

(7)

Start the engine (MIL goes out after the engine
starts).

(8)

Simulate the conditions of the malfunction de-
scribed by the customer.

NOTICE:Leave the ignition switch ON until you have
checked the DTCs, etc..

(9)

After simulating the malfunction conditions, use the
LEXUS hand–held tester diagnosis selector to
check the DTCs and freeze frame data, etc..

HINT:Take care not to turn the ignition switch OFF, as turning
it off switches the diagnosis system from Check mode to Normal
mode, so all DTCs, etc. are erased.

(10) After checking the DTC, inspect the applicable cir-

cuit.

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DIAGNOSTICS

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1997 LEXUS ES300 (RM511U)

(b)

DTC CLEARANCE

The following actions will erase the DTC and freezed frame
data. Operating an OBD II scan tool (complying with SAE
J1978) or LEXUS hand–held tester to erase the codes.
(See the OBD II scan tool’s instruction book for operating
instructions.)

4.

ROAD TEST

NOTICE:Perform the test at normal operating ATF temperature 50 – 80

°

C (122 – 176

°

F).

(a)

D POSITION TEST
Shift into the D position and fully depress the accelerator pedal and and check the following points:
(1)

Check up–shift operation.
1

→

2, 2

→

3 and 3

→

O/D up–shift takes place, at the shift point shown in the automatic shift

schedule (See page

SS–24

).

HINT:

O/D Gear Up–shift Prohibition Control (1. Coolant temp. is 60

°

C (140

°

C) or less. 2. If there is a 10

km/h (6 mph) difference between the set cruise control speed and vehicle speed.)

O/D Gear Lock–up Prohibition Control (1. Brake pedal is depressed. 2. Coolant temp. is 60

°

C

(140

°

C) or less.)

(2)

Check for shift shock and slip.
Check for shock and slip at the 1

→

2, 2

→

3 and 3

→

O/D up–shifts.

(3)

Check for abnormal noises and vibration.
Run at the D position lock–up or O/D gear and check for abnormal noises and vibration.

HINT:The check for the cause of abnormal noises and vibration must be done very thoroughly as it could
also be due to loss of balance in the differential torque converter clutch, etc..

(4)

Check kick–down operation.
While running in the D position, 2nd, 3rd and O/D gears, check to see that the possible kick–down
vehicle speed limits for 2

→

1, 3

→

2 and O/D

→

3 kick–downs conform to those indicated on

the automatic shift schedule (See page

SS–24

).

(5)

Check abnormal shock and slip at kick–down.

(6)

Check the lock–up mechanism.

Drive in D position, O/D gear, at a steady speed (lock–up ON) of about 60 km/h (37 mph).

Lightly depress the accelerator pedal and check that the engine speed does not change
abruptly.

If there is a big jump in engine speed, there is no lock–up.

(b)

2 POSITION TEST
Shift into the 2 position and fully depress the accelerator pedal and check the following points:
(1)

Check up–shift operation.
Check to see that the 1

→

2 up–shift takes place and that the shift point conforms to the automatic

shift schedule (See page

SS–24

).

HINT:There is no O/D up–shift and lock–up in the 2 position.

(2)

Check engine braking.
While running in the 2 position and 2nd gear, release the accelerator pedal and check the engine
braking effect.

(3)

Check for abnormal noises during acceleration and deceleration, and for shock at up–shift and
down–shift.

(c)

L POSITION TEST
Shift into the 2 position and fully depress the accelerator pedal and check the following points:
(1)

Check no up–shift.
While running in the L position, check that there is no up–shift to 2nd gear.

Q00519

AT3417

OK if hot

Add if hot

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DIAGNOSTICS

AUTOMATIC TRANSAXLE

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1997 LEXUS ES300 (RM511U)

(2)

Check engine braking.
While running in the L position, release the accelerator pedal and check the engine braking ef-
fect.

(3)

Check for abnormal noises during acceleration and deceleration.

(d)

R POSITION TEST
Shift into the R position and fully depress the accelerator pedal and check for slipping.

CAUTION:Before conducting this test ensure that the test area is free from people and obstruction.
(e)

P POSITION TEST
Stop the vehicle on a grade (more than 5

°

) and after shifting into the P position, release the parking

brake. Then, check to see that the parking lock pawl holds the vehicle in place.

5.

BASIC INSPECTION

(a)

CHECK FLUID LEVEL

HINT:

Drive the vehicle so that the engine and transaxle are at
normal operating temperature.
Fluid temp.: 70 – 80

°

C (158 – 176

°

F)

Only use the COOL range on the dipstick as a rough refer-
ence when the fluid is replaced or the engine does not
run.

(1)

Park the vehicle on a level surface and set the park-
ing brake.

(2)

With the engine idling and the brake pedal de-
pressed, shift the shift lever into all positions from P
to L position and return to P position.

(3)

Pull out the dipstick and wipe it clean.

(4)

Push it back fully into the pipe.

(5)

Pull it out and check that the fluid level is in the HOT
range.
If the level is at the low side, add new fluid.

Fluid type: ATF D–II or DEXRON

®

III (DEXRON

®

II)

NOTICE:do not overfill.
(b)

CHECK FLUID CONDITION
If the level is at the low side, add new fluid.

AT4657

AT8562

AT3417

OK if hot

Add if hot

AT4252

0

∼

1 mm (0

∼

0.04 in.)

Q00199

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DIAGNOSTICS

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308

1997 LEXUS ES300 (RM511U)

(c)

REPLACE ATF
(1)

Remove the drain plug and drain the fluid.

(2)

Reinstall the drain plug securely.

(3)

With the engine OFF add new fluid through the oil
filler pipe.

Fluid type: ATF D–II or DEXRON

®

III (DEXRON

®

II)

Capacity: 3.5 liters (3.7 US qts, 3.1 Imp. qts)
(4)

Start the engine and shift the shift lever into all posi-
tions from P to L position and then shift into P posi-
tion.

(5)

With the engine idling, check the fluid level. Add
fluid up to the COOL level on the dipstick.

(6)

Check the fluid level at the normal operating tem-
perature, 70 – 80

°

C (158 – 176

°

F), and add as

necessary.

NOTICE:Do not overfill.
(d)

CHECK FLUID LEAKS
Check for leaks in the transaxle.
If there are leaks, it is necessary to repair or replace O–
rings, FIPGs, oil seals, plugs or other parts.

(e)

INSPECT AND ADJUST THROTTLE CABLE
(1)

Check that the accelerator pedal is fully released.

(2)

Check that the inner cable is not slack.

(3)

Measure the distance between the outer cable end
and stopper on the cable.

Standard distance: 0 – 1 mm (0 – 0.04 in.)

If the distance is not standard, adjust the cable by
the adjusting nuts.

(f)

INSPECT AND ADJUST SHIFT LEVER POSITION
When shifting the shift lever from the N position to other
positions, check that the lever can be shifted smoothly
and accurately to each position and that the position indi-
cator is not aligned with the correct position.
If the indicator is not aligned with the correct position,
carry out the following adjustment procedures.
(1)

Loosen the nut on the shift lever.

(2)

Push the control shaft fully rearward.