Lexus ES300 (1997 year). Manual - part 362

–

DIAGNOSTICS

ELECTRIC MODULATED SUSPENSION

DI–225

377

1997 LEXUS ES300   (RM511U)

2

Check for open in harness and connectors between terminals E1 of DLC2 and
body ground (See page 

IN–27

).

NG

Repair or replace harness or connector.

OK

3

Check harness and connectors between absorber control ECU and DLC2 
(See page 

IN–27

).

NG

Repair or replace harness or connector.

OK

Check replace absorber control ECU.

W03895

LG–R

DLC2

J24

Connector

BR

Junction

Absorber Control ECU

B

BR

A

Tc

LG–R

LG–R

LG–R

BR

BR

A

A

Connector

Junction

C

DLC1

A24

J9

J8

BR

E1

IK3

Tc

11

6

3

4

B

B

B

Connector

Junction

J1

3

E1

Tc

11

IK3

ED

22

F00007 I00169

F00289

E1

Tc

ON

DLC2

DLC1

E1

Tc

DI–226

–

DIAGNOSTICS

ELECTRIC MODULATED SUSPENSION

378

1997 LEXUS ES300   (RM511U)

Tc Terminal Circuit

CIRCUIT DESCRIPTION

By connecting terminal Tc and E1 of DLC1 or DLC2, the DTC mode can be performed.

WIRING DIAGRAM

INSPECTION PROCEDURE

1

Check voltage between terminals Tc and E1 of DLC1 or DLC2.

PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure the voltage between terminals Tc and E1 of DLC2 or
DLC1.
OK:
Voltage: 10 – 14 V

OK

Proceed to next circuit inspection shown on
problem symptoms table (See page 

DI–203

).

NG

DI0AR–01

–

DIAGNOSTICS

ELECTRIC MODULATED SUSPENSION

DI–227

379

1997 LEXUS ES300   (RM511U)

2

Check for open in harness and connectors between terminals E1 of DLC1, DLC2
and body ground (See page 

IN–27

).

NG

Repair or replace harness or connector.

OK

3

Check harness and connectors between absorber control ECU and DLC1 ab-
sorber control ECU and DLC2 (See page 

IN–27

).

NG

Repair or replace harness or connector.

OK

Check and replace absorber control ECU.

W03888

Absorber Control ECU

Connector

E1

Junction

DLC1

Ts

R–Y

BR

A

A22

ED

J24

Ts

A

BR

3

16

19

F00290

Ts

ON

E1

DLC1

DI–228

–

DIAGNOSTICS

ELECTRIC MODULATED SUSPENSION

380

1997 LEXUS ES300   (RM511U)

Ts Terminal Circuit

CIRCUIT DESCRIPTION

By connecting terminal Ts and E1 of DLC1, an input signal check can be performed.

WIRING DIAGRAM

INSPECTION PROCEDURE

1

Check voltage between terminals Ts and E1 of DLC1.

PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure the voltage between terminals Ts and E1 of DLC1.
OK:
Voltage: 10 – 14 V

OK

Proceed to next circuit inspection shown on
problem symptoms table (See page 

DI–203

).

NG

DI0AS–01