Lexus ES300 (1997 year). Manual - part 347

–

DIAGNOSTICS

AUTOMATIC TRANSAXLE

DI–165

317

1997 LEXUS ES300   (RM511U)

No lock–up or No lock–up off

1. Shift solenoid valve SL circuit

2. Stop light switch circuit

3. Throttle position sensor circuit

4. Vehicle speed sensor circuit

5. On–vehicle repair matrix chart

6. Off–vehicle repair matrix chart

7. ECM

DI–176

DI–123

DI–38

DI–106

DI–164

DI–164

IN–27

Shift point too high or too low

1. Throttle position sensor circuit

2. Vehicle speed sensor circuit

3.  ECM

DI–38

DI–106

IN–27

Up–shift to 2nd while in L position

1. Park/neutral position switch circuit

2. ECM

DI–185

IN–27

Up–shift to 3rd while in L position

1. Park/neutral position switch circuit

2. ECM

DI–185

IN–27

Up–shift to O/D from 3rd

1. O/D main switch circuit

2. ECM

DI–190

IN–27

Up–shift to O/D from 3rd while engine is cold

1. Engine coolant temp. sensor circuit

2. ECM

DI–33

IN–27

Harsh engagement (N 

→

 D)

1. On–vehicle repair matrix chart

2. Off–vehicle repair matrix chart

3. ECM

DI–164

DI–164

IN–27

Harsh engagement (Lock–up)

1. Shift solenoid valve SL circuit

2. Throttle position sensor circuit

3. Vehicle speed sensor circuit

4. On–vehicle repair matrix chart

5. Off–vehicle repair matrix chart

6. ECM

DI–176

DI–38

DI–106

DI–164

DI–164

IN–27

Harsh engagement (Any driving position)

1. Throttle position sensor circuit

2. Vehicle speed sensor circuit

3. On–vehicle repair matrix chart

4. Off–vehicle repair matrix chart

5. ECM

DI–38

DI–106

DI–164

DI–164

IN–27

Slip or shudder (Forward and reverse)

1. On–vehicle repair matrix chart

2. Off–vehicle repair matrix chart

DI–164

DI–164

No engine braking

1. On–vehicle repair matrix chart

2. Off–vehicle repair matrix chart

DI–164

DI–164

Poor acceleration

1. Throttle position sensor circuit

2. Vehicle speed sensor circuit

3. Shift solenoid valve No.1 and No.2 circuit

4. Shift solenoid valve SL circuit

5. Off–vehicle repair matrix chart

6. ECM

DI–38

DI–106

DI–170

DI–176

DI–164

IN–27

Large shift shock or engine stalls when starting off or stopping

1. Shift solenoid valve SL circuit

2. Off–vehicle repair matrix chart

3. ECM

DI–176

DI–164

IN–27

DI–166

–

DIAGNOSTICS

AUTOMATIC TRANSAXLE

318

1997 LEXUS ES300   (RM511U)

2.

Chapter 2: On–Vehicle Repair
(

: A541E AUTOMATIC TRANSAXLE Repair Manual Pub. No. RM530U)

Symptom

Suspect Area

See page

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

tion

1. Manual valve

2. Throttle valve

3. Primary regulator valve

4. Off–vehicle repair matrix chart

DI–164

Vehicle does not move in R position

1. Off–vehicle repair matrix chart

DI–164

No up–shift (1st 

→

 2nd)

1. 1–2 shift valve

2. Off–vehicle repair matrix chart

DI–164

No up–shift (2nd 

→

 3rd)

1. 2–3 shift valve

2. Off–vehicle repair matrix chart

DI–164

No up–shift (3rd 

→

 O/D)

1. 3–4 shift valve

2. Off–vehicle repair matrix chart

DI–164

No down–shift (O/D 

→

 3rd)

1. 3–4 shift valve

No down–shift (3rd 

→

 2nd)

1. 2–3 shift valve

No down–shift (2nd 

→

 1st)

1. 1–2 shift valve

No lock–up or No lock–up off

1. Lock–up relay valve

2. Off–vehicle repair matrix chart

DI–164

Harsh engagement (N 

→

 D)

1. C

1 

accumulator

2. Off–vehicle repair matrix chart

DI–164

Harsh engagement (N 

→

 R)

1. C

2 

accumulator

2. No.1 accumulator control valve

3. Off–vehicle repair matrix chart

DI–164

Harsh engagement (N 

→

 L)

1. Low coast modulator valve

Harsh engagement (Lock–up)

1. Lock–up relay valve

2. Off–vehicle repair matrix chart

DI–164

Harsh engagement (1st 

→

 2nd 

→

 3rd 

→

 O/D)

1. Throttle modulator valve

2. Cut back valve

3. Throttle valve

Harsh engagement (2nd 

→

 3rd)

1. C

2 

accumulator

Harsh engagement (3rd 

→

 O/D)

1. B

0 

accumulator

Harsh engagement (O/D 

→

 3rd)

1. C

0 

accumulator

2. B

0 

accumulator

Slip or shudder (Forward and reverse)

1. Throttle valve

2. Oil strainer

3. Off–vehicle repair matrix chart

DI–164

No engine braking (1st: L position)

1. Low coast modulator valve

2. Off–vehicle repair matrix chart

DI–164

No engine braking (2nd: 2 position)

1. 2nd coast modulator valve

2. Off–vehicle repair matrix chart

DI–164

No kick–down

1. 1–2 shift valve

2. 2–3 shift valve

3. 3–4 shift valve

–

DIAGNOSTICS

AUTOMATIC TRANSAXLE

DI–167

319

1997 LEXUS ES300   (RM511U)

3.

Chapter 3: Off–Vehicle Repair
(

: A541E AUTOMATIC TRANSAXLE Repair Manual Pub. No. RM530U)

Symptom

Suspect Area

See page

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

tion

1. Front and rear planetary gear

2. O/D planetary gear

3. O/D one–way clutch (F

0

)

4. O/D direct clutch (C

0

)

5. Forward clutch (C

1

)

6. O/D brake (B

0

)

Vehicle does not move in R position

1. Front and rear planetary gear unit

2. Direct clutch (C

2

)

3. O/D direct clutch (C

0

)

4. 1st and reverse brake (B

3

)

No up–shift (1st 

→

 2nd)

1. No. 1 one–way clutch (F

1

)

2. 2nd brake (B

2

)

No up–shift (2nd 

→

 3rd)

1. Direct clutch (C

2

)

No up–shift (3rd 

→

 O/D)

1. O/D brake (B

0

)

No lock–up or No lock–up off

1. Torque converter clutch

Harsh engagement (N 

→

 D)

1. Forward clutch (C

1

)

2. O/D one–way clutch (F

0

)

3. No. 2 one–way clutch (F

2

)

Harsh engagement (N 

→

 R)

1. Direct clutch (C

2

)

2. 1st and reverse brake (B

3

)

Harsh engagement (Lock–up)

1. Torque converter clutch

Slip or shudder (Forward position: After warm–up)

1. Torque converter clutch

2. O/D direct clutch (C

0

)

3. Forward clutch (C

1

)

4. O/D one–way clutch (F

0

)

Slip or shudder (R position)

1. Direct clutch (C

2

)

2. 1st and reverse brake (B

3

)

3. O/D direct clutch (C

0

)

Slip or shudder (1st)

1. No. 2 one–way clutch (F

2

)

Slip or shudder (2nd)

1. No. 1 one–way clutch (F

1

)

2. 2nd brake (B

2

)

Slip or shudder (3rd)

1. Direct clutch (C

2

)

Slip or shudder (O/D)

1. O/D brake (B

0

)

No engine braking (1st 

∼

 3rd: D position)

1. 2nd brake (B

2

)

No engine braking (1st: L position)

1. 1st and reverse brake (B

3

)

No engine braking (2nd: 2 position)

1. 2nd coast brake (B

1

)

Poor acceleration (All position)

1. Torque converter clutch

2. O/D planetary gear

Poor acceleration (O/D)

1. O/D direct clutch (C

0

)

2. O/D planetary gear

Large shift shock or engine stalls when starting off or stopping

1. Torque converter clutch

DI0CQ–01

DI–168

–

DIAGNOSTICS

AUTOMATIC TRANSAXLE

320

1997 LEXUS ES300   (RM511U)

CIRCUIT INSPECTION

DTC

P0500

Vehicle Speed Sensor Malfunction
(No.1 Vehicle Speed Sensor)

See page 

DI–106

.