Lexus ES300 (1997 year). Manual - part 530

SF06N–04

S04525

Ohmmeter

Continuity

S04524

Ohmmeter

No Continuity

FI6393

Air

E

Filter

S04523

Air

E

F

Battery

SF–54

–

SFI

VSV FOR ACOUSTIC CONTROL INDUCTION 
SYSTEM (ACIS)

905

1997 LEXUS ES300   (RM511U)

INSPECTION

1.

REMOVE V–BANK COVER, EMISSION CONTROL
VALVE SET AND HIGH–TENSION CORD COVER

2.

REMOVE VSV

(a)

Disconnect the 2 vacuum hoses from the VSV.

(b)

Remove the screw and VSV.

3.

INSPECT VSV FOR OPEN CIRCUIT

Using an ohmmeter, check that there is continuity between
each terminals.

Resistance: 33 – 39 

Ω

 at 20

°

C (68

°

F)

If there is no continuity, replace the VSV.

4.

INSPECT VSV FOR GROUND

Using an ohmmeter, check that there is no continuity between
each terminal and the body.
If there is continuity, replace the VSV.

5.

INSPECT VSV OPERATION

(a)

Check that air flows from port E to the filter.

(b)

Apply battery voltage across the terminals.

(c)

Check that air flows from port E to port F.

If operation is not as specified, replace the VSV.
6.

REINSTALL VSV

(a)

Install the VSV with the screw.

(b)

Connect the 2 vacuum to the VSV.

7.

REINSTALL EMISSION CONTROL VALVE SET

8.

REINSTALL HIGH–TENSION CORD COVER

9.

REINSTALL V–BANK COVER

S05165

Vapor Pressure Sensor

Bracket

Vacuum Hose

Charcoal Canister

VSV For Vapor Pressure Sensor

Vacuum Hose

Vacuum Hose

VSV Connector

SF06O–01

–

SFI

VSV FOR VAPOR PRESSURE SENSOR

SF–55

906

1997 LEXUS ES300   (RM511U)

VSV FOR VAPOR PRESSURE SENSOR

COMPONENTS

SF06P–01

S04518

Ohmmeter

Continuity

S04516

Ohmmeter

No Continuity

S04519

Air

F

E

P

S04517

Air

F

E

P

Battery

SF–56

–

SFI

VSV FOR VAPOR PRESSURE SENSOR

907

1997 LEXUS ES300   (RM511U)

INSPECTION

1.

REMOVE VSV

(a)

Disconnect the 3 vacuum hoses from the VSV.

(b)

Remove the screw and VSV.

2.

INSPECT VSV FOR OPEN CIRCUIT

Using an ohmmeter, check that there is continuity between the
terminals.

Resistance: 33 – 39 

Ω

 at 20

°

C (68

°

F)

If there is no continuity, replace the VSV.
3.

INSPECT VSV FOR GROUND

Using an ohmmeter, check that there is no continuity between
each terminal and the body.
If there is continuity, replace the VSV.

4.

INSPECT VSV OPERATION

(a)

Check that the air flows from ports E to P.

(b)

Apply battery voltage across the terminals.

(c)

Check that the air flows from ports E to F.

If operation is not as specified, replace the VSV.
5.

REINSTALL VSV

(a)

Install the VSV with the screw.

(b)

Connect the 3 vacuum hoses to the VSV.

S04759

ECT Switch

Gasket

19 mm
Deep Socket
Wrench

SF06Q–01

S04982

Ohmmeter

Acceptable

RESIST

ANCE

 k

Ω

TEMPERATURE 

°

C (

°

F)

–

SFI

ENGINE COOLANT TEMPERATURE (ECT) SENSOR

SF–57

908

1997 LEXUS ES300   (RM511U)

ENGINE COOLANT
TEMPERATURE (ECT) SENSOR

INSPECTION

1.

DRAIN ENGINE COOLANT

2.

REMOVE ECT SENSOR

(a)

Disconnect the ECT sensor connector.

(b)

Using a 19 mm deep socket wrench, remove the ECT
sensor and  gasket.

3.

INSPECT ECT SENSOR

Using an ohmmeter, measure the resistance between the ter-
minals.

Resistance: Refer to the graph

If the resistance is not as specified, replace the ECT sensor.
4.

REINSTALL ECT SENSOR

(a)

Install a new gasket to the ECT sensor.

(b)

Using a 19 mm deep socket, install the ECT sensor.
Torque: 20 N·m (200 kgf·cm, 14 ft·lbf)

(c)

Connect the ECT sensor connector.

5.

REFILL WITH ENGINE COOLANT