Lexus ES300 (1997 year). Manual - part 184

V08440

Disconnect connector ”C” 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.

Yes

No

COMBINATION
METER

Abnormal operation or warning light
does not light up.

Is DOME fuse normal?

Replace fuse. Then recheck system.

Open circuit in wire harness between GAUGE fuse
and meter.

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

Ground terminal C6. 
Does open door warning light light up?

Temporarily install another circuit plate.
Is operation normal?

Is there battery positive voltage between terminal
C6 and ground?

Is bulb OK?

Replace bulb.
Then recheck system.

Replace circuit plate.

Replace combination
meter computer.
Then recheck system.

INSPECT OPEN DOOR WARNING LIGHT
(See page 

BE–92

)

No

No

No

Yes

Yes

Yes

Yes

No

If operation is not as specified, replace the switch.
Then recheck system.

16

OPEN DOOR WARNING

Is operation normal?

INSPECT DOOR COURTESY SWITCH
(See page 

BE–92

)

Yes

No

Wire harness faulty between terminal C6 of meter
and terminal 1 of door courtesy switch.

–

BODY ELECTRICAL

COMBINATION METER

BE–71

1455

1997 LEXUS ES300   (RM511U)

V08441

17

No

Replace fuse. Then recheck system.

Open circuit in wire harness between GAUGE fuse
and meter.

Temporarily install another circuit plate.
Is operation normal?

Is bulb OK?

Replace bulb.
Then recheck system.

Replace circuit plate.

Replace combination
meter computer.
Then recheck system.

No

No

No

Yes

Yes

No

No

Wire harness faulty between terminal C7 of meter
and terminal 1 of engine oil level warning switch.

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.

Yes

COMBINATION
METER

Is GAUGE fuse normal?

Connect connector ”D” to meter.

Disconnect connector ”C” from meter.

Turn ignition switch ON.

Does engine oil level warning light light up after

approximately 40 secs.?

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

INSPECT ENGINE OIL LEVEL WARNING LIGHT

(See page 

BE–92

)

Yes

Yes

Is operation normal?

INSPECT ENGINE OIL LEVEL WARNING SWITCH

(See page 

BE–92

)

Yes

If operation is not as specified, replace the switch.
Then recheck system.

ENGINE OIL LEVEL WARNING

Abnormal operation or warning light
does not light up.

BE–72

–

BODY ELECTRICAL

COMBINATION METER

1456

1997 LEXUS ES300   (RM511U)

V08442

18

V08441

No

Replace fuse. Then recheck system.

Open circuit in wire harness between GAUGE fuse
and meter.

Temporarily install another circuit plate.
Is operation normal?

Is bulb OK?

Replace bulb.
Then recheck system.

Replace circuit plate.

Replace combination
meter computer.
Then recheck system.

No

No

No

Yes

Yes

No

No

Wire harness faulty between terminal C7 of meter
and terminal 1 of engine oil level warning switch.

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.

Yes

COMBINATION
METER

Is GAUGE fuse normal?

Connect connector ”D” to meter.

Disconnect connector ”A” from meter.

Inspect connector on combination meter side as follows.

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

INSPECT SEAT BELT WARNING LIGHT

(See page 

BE–92

)

Yes

Yes

Is operation normal?

INSPECT INTEGRATION RELAY CIRCUIT

(See page 

BE–92

)

Yes

If circuit is not as specified, replace integration relay.
Then recheck system.

SEAT BELT WARNING

Abnormal operation or warning light
does not light up.

Ground terminal A8 and turn ignition switch ON.
Does seat belt warning light light up?

–

BODY ELECTRICAL

COMBINATION METER

BE–73

1457

1997 LEXUS ES300   (RM511U)

V08443

19

Is bulb OK?

Replace the bulb. Then recheck system.

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.

Turn ignition switch ON.
Is there battery positive voltage between terminals
xx and ground with the turn signal lever to left and
right?

Yes

Abnormal operation or warning light
does not light up.

Turn signal indicator signal circuit faulty.
Inspect the turn signal and hazard warning light
system.

Replace circuit plate. Then recheck system.

Turn signal to

Terminal xx

Left

B11

Right

B13

No

TURN SIGNAL INDICATOR

Yes

No

20

Is bulb OK?

Replace the bulb. Then recheck system.

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.

Ground terminal D6 and turn ignition switch ON.
Does TRAC OFF indicator light up?

Yes

Abnormal operation or indicator does
not light up.

Inspect the wire harness between terminal D6 of
meter and ABS & TRAC ECU or inspect ABS &
TRAC ECU.

Replace circuit plate. Then recheck system.

No

TRAC OFF INDICATOR

Yes

No

Replace power source unit.

No

Yes

BE–74

–

BODY ELECTRICAL

COMBINATION METER

1458

1997 LEXUS ES300   (RM511U)