Lexus ES300 (2002 year). Manual — part 341
-
DIAGNOSTICS
ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]
05-415
568
2002 LEXUS ES300 REPAIR MANUAL (RM911U)
2
PERFORM ACTIVE TEST BY OBD II SCAN TOOL OR HAND-HELD TESTER
(a)
Warm up the engine.
(b)
Turn the ignition switch OFF.
(c)
Connect the OBD II scan tool or Hand-held tester to the DLC3.
(d)
Turn the ignition switch ON and push the OBD II scan tool or Hand-held tester main SW ON.
(e)
Select the item ”SHIFT” in the ACTIVE TEST and operate the shift solenoid valves on the OBD II scan
tool or Hand-held tester.
NOTICE:
The values given below for ”Normal Condition” are representative values, so a vehicle may still be
normal even if its value differs from those listed here. Do not depend solely on the ”Normal Condi-
tion” here when deciding whether or not the part is faulty.
Item
Test Details
Diagnostic Note
SHIFT
[Test Details]
Operate the shift solenoid valve and set the each shift position by your-
self.
[Vehicle Condition]
Less than 50 km/h (31 mph)
[Others]
Press
→
button: Shift up
Press
←
button: Shift down
Possible to check the operation of
the shift solenoid values.
A
NG (S4)
B
NG (SR)
NG(A)
Go to step 6
NG(B)
OK
CHECK AND REPLACE ECM(See page
)
D25466
1
2
1
2
(+)
(-)
05-416
-
DIAGNOSTICS
ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]
569
2002 LEXUS ES300 REPAIR MANUAL (RM911U)
3
INSPECT SHIFT SOLENOID VALVE SL1
(a)
Remove the shift solenoid valve SL1.
(b)
Measure the resistance between terminals.
OK:
Resistance: 5.0 - 5.6
Ω
at 20
°
C (68
°
F)
(c)
Connect the positive (+) lead with a 21 W bulb to terminal
2 and the negative (-) lead to terminal 1 of the solenoid
valve connector, then check the movement of the valve.
OK:
The solenoid makes an operating noise.
OK
NG
REPLACE SHIFT SOLENOID VALVE SL1
D25466
1
2
1
2
(+)
(-)
-
DIAGNOSTICS
ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]
05-417
570
2002 LEXUS ES300 REPAIR MANUAL (RM911U)
4
INSPECT SHIFT SOLENOID VALVE SL2
(a)
Remove the shift solenoid valve SL2.
(b)
Measure teh resistance between terminals.
OK:
Resistance: 5.0 - 5.6
Ω
at 20
°
C (68
°
F)
(c)
Connect the positive (+) lead with a 21 W bulb to terminal
2 and the negative (-) lead to terminal 1 of the solenoid
valve connector, then check the movement of the valve.
OK:
The solenoid makes an operating noise.
OK
NG
REPLACE SHIFT SOLENOID VALVE SL2
D25466
1
2
1
2
(+)
(-)
C90639
(+)
(-)
05-418
-
DIAGNOSTICS
ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]
571
2002 LEXUS ES300 REPAIR MANUAL (RM911U)
5
INSPECT SHIFT SOLENOID VALVE SL3
(a)
Remove the shift solenoid valve SL3.
(b)
Measure teh resistance between terminals.
OK:
Resistance: 5.0 - 5.6
Ω
at 20
°
C (68
°
F)
(c)
Connect the positive (+) lead with a 21 W bulb to terminal
2 and the negative (-) lead to terminal 1 of the solenoid
valve connector, then check the movement of the valve.
OK:
The solenoid makes an operating noise.
OK
NG
REPLACE SHIFT SOLENOID VALVE SL3
6
INSPECT SHIFT SOLENOID VALVE S4
(a)
Remove the shift solenoid valve S4.
(b)
Measure the resistance between the solenoid connector
and the solenoid body.
OK:
Resistance: 11 - 15
Ω
at 20
°
C (68
°
F)
(c)
Connector positive (+) lead to the terminal of solenoid
connector, negative (-) lead to the solenoid body.
OK:
The solenoid makes an operating noise.
OK
NG
REPLACE SHIFT SOLENOID VALVE S4
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