Lexus ES300 (1997 year). Manual — part 113

BE05D–03

BE–58

–

BODY ELECTRICAL

COMBINATION METER

1442

1997 LEXUS ES300 (RM511U)

COMBINATION METER

TROUBLESHOOTING

PRECAUTIONS
(a)

When checking voltage, resistance, etc., use a high impedance type tester (It is impossible to use a
simple tester).

(b)

When the ignition switch is turned to START, all meters will go out but this is normal.

(c)

When replacing the internal mechanism (computer parts) of the meter, be careful that no part of your
body or clothing comes in contact with the terminals of the leads from the IC, etc. of the replacement
parts (spare parts).

(d)

Do not disconnect the battery while the engine is running as this would cause an instant reverse
charge, resulting in damage to the components.

(e)

Always disconnect the battery terminals before pulling apart connectors or terminals.

(f)

To prevent damage, handle meters with care.

Trouble

Refer to

No display at all.

1

The four indicator needles do not light up.

Replace com-

bination meter

computer.

One indicator needle does not light up.

2

The character plate is not illuminated at one or two loca-

tions.

3

All Meters, Gauges, and Illuminations

Brightness does not change even when light control

switch is operated (OFF

↔

TAIL).

4

Brightness does not change even when rheostat volume

is turned.

5

Remains dimmed when the light control switch is turned

OFF.

Replace com-

bination meter

computer.

Does not go out while starter running.

6

S

d

t

Speedometer does not operate while driving.

7

Speedometer

Vehicle speed signal (4P) faulty.

8

Tachometer

Tachometer does not operate while engine running.

9

Fuel Gauge

Does not operate or operation is abnormal.

10

Fuel Level Warning

Warning light does not light up or always lights up.

11

Engine Coolant Temperature Gauge

Does not operate or operation is abnormal.

12

Low Oil Pressure warning

Abnormal operation or warning light does not light up.

13

Brake Warning

Abnormal operation or warning light does not light up.

14

Rear Lights Warning

Abnormal operation or warning light does not light up.

15

Open Door Warning

Abnormal operation or warning light does not light up.

16

Engine Oil Level Warning

Abnormal operation or warning light does not light up.

17

Seat Belt Warning Chime

Abnormal operation or chime does not operate.

BE–92

Seat Belt Warning

Abnormal operation or warning light does not light up.

18

–

BODY ELECTRICAL

COMBINATION METER

BE–59

1443

1997 LEXUS ES300 (RM511U)

Trouble

Refer to

Turn Signal Indicator

Abnormal operation or Indicator does not light up.

19

O/D OFF Indicator

Abnormal operation or Indicator does not light up.

20

Shift Position Indicator

Abnormal operation or Indicator does not light up.

21

Malfunction Indicator

Abnormal operation or warning light does not light up

22

ABS Warning

Abnormal operation or warning light does not light up.

23

CRUISE Indicator

Abnormal operation or Indicator does not light up.

24

SRS Warning

Abnormal operation or warning light does not light up.

25

Discharge Warning

Abnormal operation or warning light does not light up.

26

High Beam Indicator

Abnormal operation or Indicator does not light up.

27

Window Washer Warning

Abnormal operation or warning light does not light up.

28

Taillight Indicator

Abnormal operation or Indicator does not light up.

29

Headlight Indicator

Abnormal operation or Indicator does not light up.

30

V08429

1

ALL METERS, GAUGES, AND
ILLUMINATIONS

No display at all.

INSPECT GROUND CIRCUIT

INSPECT POWER SOURCE

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

Turn ignition switch ON.
Do warning lights light up?

Is GAUGE fuse normal?

Open circuit in wire harness
between GAUGE fuse and
combination meter.

GAUGE fuse faulty.

Short circuit in wire harness on
vehicle side.

Disconnect connector ”B” from

meter.

Inspect connector on wire

harness side as follows.

Replace GAUGE fuse and turn
ignition switch ON.
Is fuse normal?

Disconnect connectors from

meter and replace GAUGE fuse.

Then turn ignition switch ON.

Is fuse normal?

Replace circuit plate.
Then recheck system.

Is there continuity (no resistance) between terminal

B15 and ground?

COMBINATION
METER

No

Yes

Yes

Yes

Yes

No

Yes

Yes

Yes

No

No

No

No

Turn ignition switch ON . Is there battery positive

voltage between terminals D3 and B15?

Open circuit in wire harness between terminal

of meter and ground.

Ground faulty.

Open circuit in wire harness between terminal D3 of

meter and GAUGE fuse.

Replace circuit plate. Then recheck system.

BE–60

–

BODY ELECTRICAL

COMBINATION METER

1444

1997 LEXUS ES300 (RM511U)

V08430

ALL METERS, GAUGES, AND
ILLUMINATIONS

ALL METERS, GAUGES, AND
ILLUMINATIONS

One indicator needle does not light up.

The character plate is illuminated on one
side.

INSPECT GROUND CIRCUIT

INSPECT POWER SOURCE

INSPECT GROUND CIRCUIT

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

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

Is there continuity (no resistance) between terminal

B15 and ground?

Turn ignition switch ON . Is there battery positive
voltage between terminals D3 and B15?

Open circuit in wire harness between terminal

of meter and ground.

Ground faulty.

Open circuit in wire harness between terminal D3 of

meter and GAUGE fuse.

Replace circuit plate. Then recheck system.

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

Disconnect connector ”B” from meter.

Inspect connector on wire harness side as follows.

Is there continuity (no resistance) between terminal

B15 and ground?

Open circuit in wire harness between terminal D3

of meter and ground.

Ground faulty.

Replace circuit plate. Then recheck system.

Turn ignition switch ON . Is there battery positive
voltage between terminals D3 and B15?

INSPECT POWER SOURCE

Yes

No

Yes

Yes

Yes

Yes

No

No

No

No

No

Yes

Is LED OK?

Replace the LED.
Then recheck system.

Replace the LED.
Then recheck system.

Is bulb OK?

Open circuit in wire harness between terminal D3 of

meter and GAUGE fuse.

2

3

–

BODY ELECTRICAL

COMBINATION METER

BE–61

1445

1997 LEXUS ES300 (RM511U)