Lexus ES300 (2002 year). Manual — part 337

C95379

Transmission Wire

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DIAGNOSTICS

ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]

05-399

552

2002 LEXUS ES300 REPAIR MANUAL (RM911U) Corrected - 8/05/02 - MH

10.

MANUAL SHIFTING TEST

HINT:

With this test, it can be determined whether the trouble oc-
curs in the electrical circuit or is a mechanical problem in
the transaxle.

If any abnormalities are found in the following test, the
problem is in the transaxle itself.

(a)

Disconnect 2 connectors of transmission wire.

(b)

Drive with the transmission wire disconnected.
Shifting the shift lever in the order of L, 2, 3, 4 and D to
check whether the shifting condition changes the table
below.

Shift Position

Shifting Condition

L

⇔

2

No Shift (Not Change)

2

⇔

3

Down Shift

⇔

Up Shift

3

⇔

4

⇔

D

No Shift (Not Change)

HINT:
When driving with the transmission wire disconnected, the shift
lever position is in L or 2, the gear position is held in 3rd and the
shift lever position is in 3, 4 or D, the gear position is held in 4th.
However, the shift position is in R or P, the operation is same as
usual.
(c)

Connect 2 connectors of transmission wire.

(d)

Clear the DTC.

0527K-04

05-400

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DIAGNOSTICS

ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]

553

2002 LEXUS ES300 REPAIR MANUAL (RM911U)

DIAGNOSTIC TROUBLE CODE CHART

If a DTC is displayed during the DTC check, check the circuit listed in the table below and proceed to the
page given.
* : - ... MIL does not light /

... MIL light up

DTC No.

(See Page)

Detection Item

Trouble Area

MIL *

Memory

P0500

(

05-1 14

)

Vehicle Speed Sensor Malfunc-
tion

Combination meter

Open or short in vehicle speed sensor circuit

Vehicle speed sensor

Skid control ECU

ECM

P0710

(

05-410

)

Transmission Fluid Temp. Sen-
sor Malfunction (ATF Temp. Sen-
sor)

Open in ATF temp. sensor circuit

ATF temp. sensor

ECM

P0711

(

05-410

)

Transmission Fluid Temp. Sen-
sor Rnge/Performance problem

Open or short in ATF temp. sensor circuit

ATF temp. sensor

ECM

P0750

(

05-413

)

Shift Solenoid A Malfunction
(Shift Solenoid Valve SL1)

Shift solenoid valve SL1 is stuck open or closed

Valve body is blocked or stuck

Torque converter clutch

Automatic transaxle

P0753

(

05-420

)

Shift Solenoid A Electrical Mal-
function
(Shift Solenoid Valve SL1)

Open or short in shift solenoid valve SL1 circuit

Shift solenoid valve SL1

ECM

P0755

(

05-413

)

Shift Solenoid B Malfunction
(Shift Solenoid Valve SL2)

Shift solenoid valve SL2 is stuck open or closed

Valve body is blocked or stuck

Torque converter clutch

Automatic transaxle

P0758

(

05-420

)

Shift Solenoid B Malfunction
(Shift Solenoid Valve SL2)

Open or short in shift solenoid valve SL2 circuit

Shift solenoid valve SL2

ECM

P0760

(

05-413

)

Shift Solenoid C Malfunction
(Shift Solenoid Valve SL3)

Shift solenoid valve SL3 is stuck open or closed

Valve body is blocked or stuck

Torque converter clutch

Automatic transaxle

P0763

(

05-420

)

Shift Solenoid C Electrical Mal-
function
(Shift Solenoid Valve SL3)

Open or short in shift solenoid valve SL3 circuit

Shift solenoid valve SL3

ECM

P0765

(

05-413

)

Shift Solenoid D Malfunction
(Shift Solenoid Valve S4)

Shift solenoid valve S4 is stuck open or closed

Valve body is blocked or stuck

Torque converter clutch

Automatic transaxle

P0768

(

05-420

)

Shift Solenoid D Electrical Mal-
function
(Shift Solenoid Valve S4)

Open or short in shift solenoid valve S4 circuit

Shift solenoid valve S4

ECM

P0770

(

05-429

)

Shift Solenoid E Malfunction
(Shift Solenoid Valve DSL)

Open or short in shift solenoid valve DSL circuit

Shift solenoid valve DSL

Valve body is blocked or stuck

Lock-up clutch

ECM

P0773

(

05-433

)

Shift Solenoid E Electrical Mal-
function
(Shift Solenoid Valve DSL)

Open or short in shift solenoid valve DSL circuit

Shift solenoid valve DSL

ECM

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DIAGNOSTICS

ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]

05-401

554

2002 LEXUS ES300 REPAIR MANUAL (RM911U)

P1520

(

05-436

)

Stop Light Switch Circuit Mal-
function

Open or short in stop light switch circuit

Stop lamp switch assy

ECM

P1725

(

05-438

)

NT Revolution Sensor Circuit
Malfunction
(Input Turbine Speed Sensor)

Open or short in input turbine speed sensor circuit

Speed sensor (NT)

ECM

P1730

(

05-440

)

NC Revolution Sensor Circuit
Malfunction
(Counter Gear Speed Sensor)

Open or short in counter gear speed sensor circuit

Speed sensor (NC)

ECM

P1760

(

05-443

)

Linear Solenoid for Line Pres-
sure Control Circuit Malfunction
(Shift Solenoid Valve SLT)

Open or short in line pressure control solenoid (SLT) circuit

Line pressure control solenoid (SLT)

ECM

P1780

(

05-447

)

Park/Neutral Position Switch
Malfunction

Park/neutral position switch circuit

Park/neutral position switch assy

ECM

P1815

(

05-413

)

SR Solenoid Valve Malfunction
(Shift Solenoid Valve SR)

Shift solenoid valve SR is stuck open or closed

Valve body is blocked or stuck

P1818

(

05-420

)

SR Solenoid Valve Electrical
Malfunction
(Shift Solenoid Valve SR)

Open or short in shift solenoid valve SR circuit

Shift solenoid valve SR

ECM

0527L-04

C90648

Line Pressure Control
Solenoid Assy (SLT)

Speed Sensor (NC)

Speed Sensor (NT)

Transmission Wire
(ATF Temperature Sensor)

ECM

Shift Lock Control Unit Assy
(Transmission Control Switch)

DLC3

Shift Solenoid Valve SL1

Shift Solenoid Valve DSL

Shift Solenoid Valve SL2

Shift Solenoid Valve S4

Shift Solenoid Valve SR

Shift Solenoid Valve SL3

Stop Lamp Switch
Assy

Park/neutral Position
Switch Assy

05-402

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DIAGNOSTICS

ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]

555

2002 LEXUS ES300 REPAIR MANUAL (RM911U)

LOCATION