Lexus ES300 (2002 year). Service manual - part 339

-

DIAGNOSTICS

ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]

05-407

560

2002 LEXUS ES300 REPAIR MANUAL   (RM911U)

2.

Chapter 2: On-Vehicle Repair
(

: U150E AUTOMATIC TRANSAXLE Repair Manual Pub. No. RM913U)

Symptom

Suspect Area

See page

Vehicle does not move in any forward position and reverse posi-
tions

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

Vehicle does not move in R position

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

No up-shift (1st 

→

 2nd)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

No up-shift (2nd 

→

 3rd)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

No up-shift (3rd 

→

 4th)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

No up-shift (4th 

→

 5th)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

No down-shift (5th 

→

 4th)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

No down-shift (4th 

→

 3rd)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

No down-shift (3rd 

→

 2nd)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

No down-shift (2nd 

→

 1st)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

No lock-up or No lock-up off

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

Harsh engagement (N 

→

 D)

1. Valve body assy
2. C

1 

accumulator

3. Off-vehicle repair matrix chart

40-23

-

Harsh engagement (Lock-up)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

Harsh engagement (N 

→

 R)

1. Valve body assy
2. C

2 

accumulator

3. Off-vehicle repair matrix chart

40-23

-

Harsh engagement (1st 

→

2nd 

→

 3rd 

→

 4th 

→

5th)

Valve body assy

40-23

Harsh engagement (1st 

→

 2nd)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

Harsh engagement (2nd 

→

 3rd)

1. Valve body assy
2. C

0 

accumulator

3. Off-vehicle repair matrix chart

40-23

-

Harsh engagement (3rd 

→

 4th)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

Harsh engagement (4th 

→

 5th)

1. Valve body assy
2. C

3 

accumulator

3. Off-vehicle repair matrix chart

40-23

-

Harsh engagement (5th 

→

 4th)

1. Valve body assy
3. B

3 

accumulator

4. Off-vehicle repair matrix chart

40-23

-

Slip or shudder (Forward and reverse)

1. Valve body assy
2. Oil strainer
3. Off-vehicle repair matrix chart

40-23

40-23

-

05-408

-

DIAGNOSTICS

ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]

561

2002 LEXUS ES300 REPAIR MANUAL   (RM911U)

No engine braking (1st: L position)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

No engine braking (2nd: 2 position)

1. Valve body assy
2. Off-vehicle repair matrix chart

40-23

-

No kick-down

Valve body assy

40-23

-

DIAGNOSTICS

ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]

05-409

562

2002 LEXUS ES300 REPAIR MANUAL   (RM911U)

3.

Chapter 3: Off-Vehicle Repair
(

: U150E AUTOMATIC TRANSAXLE Repair Manual Pub. No. RM913U)

Symptom

Suspect Area

See page

Vehicle does not move in any forward position and reverse posi-
tions

1. U/D brake (B

3

)

2. Torque converter clutch

40-16

Vehicle does not move in R position

1. Reverse clutch (C

2

)

2. 1st & reverse brake (B

2

)

No up-shift (1st 

→

 2nd)

2nd & O/D brake (B

1

)

No up-shift (2nd 

→

 3rd)

Direct and O/D clutch (C

0

)

No up-shift (3rd 

→

 4th)

2nd & O/D brake (B

1

)

No up-shift (4th 

→

 5th)

U/D clutch (C

3

)

No lock-up or No lock-up off

Torque converter clutch

40-16

Harsh engagement (N 

→

 D)

1. Forward clutch (C

1

)

2. One-way clutch No.1 (F

1

)

3. U/D one-way clutch (F

2

)

Harsh engagement (N 

→

 R)

1. Reverse clutch (C

2

)

2. 1st & reverse brake (B

2

)

Harsh engagement (1 

→

 2)

2nd & O/D brake (B

1

)

Harsh engagement (2 

→

 3)

Direct and O/D clutch (C

0

)

Harsh engagement (3 

→

 4)

2nd & O/D brake (B

1

)

Harsh engagement (4 

→

 5th)

U/D clutch (C

3

)

Harsh engagement (Lock-up)

Torque converter clutch

40-16

Slip or shudder (Forward and reverse: After warm-up)

1. Direct and O/D clutch (C

0

)

2. Forward clutch (C

1

)

3. U/D clutch (C

3

)

4. 2nd & O/D brake (B

1

)

5. U/D brake (B

3

)

6. One-way clutch No.1 (F

1

)

7. U/D one-way clutch (F

2

)

8. Torque converter clutch

40-16

Slip or shudder (Particular position: Just after engine starts)

Torque converter clutch

40-16

Slip or shudder (R position)

1. Reverse clutch (C

2

)

2. 1st & reverse brake (B

2

)

Slip or shudder (1st)

1. Forward clutch (C

1

)

2. One-way clutch No.1 (F

1

)

3. U/D one-way clutch (F

2

)

Slip or shudder (2nd)

2nd & O/D brake (B

1

)

Slip or shudder (3rd)

Direct and O/D clutch (C

0

)

Slip or shudder (4th)

2nd & O/D brake (B

1

)

Slip or shudder (5th)

U/D clutch (C

3

)

No engine braking (1st 

−

 4th: D position)

U/D brake (B

3

)

No engine braking (1st: L position)

1st & reverse brake (B

2

)

No engine braking (2nd: 2 position)

2nd & O/D brake (B

1

)

No engine braking (3rd: 3 position)

U/D brake (B

3

)

Poor acceleration (All positions)

Torque converter clutch

40-16

Poor acceleration (5th)

1. U/D clutch (C

3

)

2. U/D planetary gear unit

Engine stalls when starting off or stopping

Torque converter clutch

40-16

C93631

THO

E2

BR

E10

28

30

G

4

Electronically Controlled 
Transmission Solenoid

E10

E2

E1

1

E1

THO

BR-W

ECM

05-410

-

DIAGNOSTICS

ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]

563

2002 LEXUS ES300 REPAIR MANUAL   (RM911U)

DTC

P0710

TRANSMISSION FLUID TEMP. SENSOR
MALFUNCTION

DTC

P0711

TRANSMISSION FLUID TEMP. CIRCUIT
RANGE/PERFORMANCE PROBLEM

CIRCUIT DESCRIPTION

The ATF temperature sensor converts the fluid temperature into a resistance value which is input into the
ECM.

DTC No.

DTC Detection Condition

Trouble Area

P0710

Either (a) or (b) is detected for 0.5 sec. or more:
(1 trip detection logic)

(c) Temp. sensor resistance is less than 79 

Ω

(d) After engine has been operating for 15 min. or

more, resistance at temp. sensor is more than 156 k

Ω

Open or short in ATF temp. sensor circuit

ATF temp. sensor

ECM

P0711

Both (a) and (b) are detected: (2 trip detection logic)

(a) After 12 sec. of engine start, temp. of atmosphere and that

of engine coolant is more than -10

°

C

(b) After normal driving for over 20 min. and 10 km, ATF temp.

is less than 10

°

C

Open in ATF temp. sensor circuit

ATF temp. sensor

ECM

WIRING DIAGRAM

0527N-04