Lexus ES300 (1997 year). Manual — part 253

V08445

Is bulb OK?

Disconnect connector ”D” from meter.
Inspect connector on wire harness side as follows.

HINT : While carrying out the following inspection, make certain that the connectors and terminals are properly con-
nected.

Replace fuse. Then recheck system.

No

Yes

23

MALFUNCTION WARNING

Ground terminal D5 and turn ignition switch ON.
Does check engine warning light light up?

Replace the bulb.
Then recheck system.

Turn ignition switch ON.
Is there battery positive voltage between terminal
D3 and ground?

Replace circuit plate.

Replace combination
meter computer.
Then recheck system.

Temporarily install another circuit plate.
Is operation normal?

Open circuit in wire harness between GAUGE fuse
and meter.

Is GAUGE fuse normal?

Connect connector ”D” to meter.
Disconnect connector ”D” from meter.
Inspect connector on combination meter side as
follows.

Wire harness faulty between ECM and meter.

ECM faulty.

Yes

Yes

Yes

No

No

No

Yes

No

Abnormal operation or warning light
does not light up.

COMBINATION
METER

BE–76

–

BODY ELECTRICAL

COMBINATION METER

1460

1997 LEXUS ES300 (RM511U)

V08446

Is bulb OK?

Disconnect connector ”D” from meter.
Inspect connector on wire harness side as follows.

HINT : While carrying out the following inspection, make certain that the connectors and terminals are properly con-
nected.

Replace fuse. Then recheck system.

No

Yes

Ground terminal D7 and turn ignition switch ON.
Does ABS warning light light up?

Replace bulb.

Then recheck system.

Turn ignition switch ON.
Is there battery positive voltage between terminal
D3 and ground?

Replace circuit plate.

Replace combination

meter computer.

Then recheck system.

Temporarily install another circuit plate.
Is operation normal?

Open circuit in wire harness between GAUGE fuse
and meter.

Is GAUGE fuse normal?

Connect connector ”D” to meter.
Disconnect connector ”D” from meter.
Inspect connector on combination meter side as
follows.

Wire harness faulty between ABS ECU and meter.

ABS ECU faulty.

Yes

Yes

No

No

No

Yes

No

COMBINATION
METER

24

ABS WARNING

Abnormal operation or warning light
does not light up.

–

BODY ELECTRICAL

COMBINATION METER

BE–77

1461

1997 LEXUS ES300 (RM511U)

V08447

Is bulb OK?

Disconnect connector ”D” from meter.
Inspect connector on wire harness side as follows.

HINT : While carrying out the following inspection, make certain that the connectors and terminals are properly con-
nected.

Replace fuse. Then recheck system.

No

Yes

Ground terminal A4 and turn ignition switch ON.
Does CRUISE indicator light up?

Replace bulb.

Then recheck system.

Turn ignition switch ON.
Is there battery positive voltage between terminal
D3 and ground?

Replace circuit plate.

Replace combination

meter computer.

Then recheck system.

Temporarily install another circuit plate.
Is operation normal?

Open circuit in wire harness between GAUGE fuse
and meter.

Is GAUGE fuse normal?

Connect connector ”D” to meter.
Disconnect connector ”A” from meter.
Inspect connector on combination meter side as
follows.

Wire harness faulty between cruise control ECU

and meter.

Cruise control ECU faulty.

Yes

Yes

No

No

No

Yes

No

COMBINATION
METER

25

CRUISE INDICATOR

Abnormal operation or indicator
does not light up.

Yes

BE–78

–

BODY ELECTRICAL

COMBINATION METER

1462

1997 LEXUS ES300 (RM511U)

V08448

Is bulb OK?

Disconnect connector ”D” from meter.
Inspect connector on wire harness side as follows.

HINT : While carrying out the following inspection, make certain that the connectors and terminals are properly con-
nected.

Replace fuse. Then recheck system.

No

Yes

Replace bulb.

Then recheck system.

Is there battery positive voltage between terminal
and ground?

Replace circuit plate.

Replace combination

meter computer.

Then recheck system.

Temporarily install another circuit plate.
Is operation normal?

Open circuit in wire harness between ECU–B fuse
and meter.

Is ECU–B fuse normal?

Wire harness faulty between center airbag

sensor assembly and meter.

Center airbag sensor assembly faulty.

Yes

No

No

No

Yes

No

COMBINATION
METER

26

SRS WARNING

Abnormal operation or warning light
does not light up.

Yes

Inspect connector on meter side as follows.

Is there continuity between terminals D8 and D9 of
meter?

Yes

–

BODY ELECTRICAL

COMBINATION METER

BE–79

1463

1997 LEXUS ES300 (RM511U)