Lexus GS300/400 (2000 year). Manual — part 94

BE0HK–04

I04255

I04256

I04257

I04258

BE–90

–

BODY ELECTRICAL

COMBINATION METER

2391

DISASSEMBLY

1.

DISCONNECT TELLTALE LIGHT ASSEMBLY CON-
NECTOR

2.

REMOVE METER COVER

(a)

Disengage a claw.

(b)

Remove the 4 screws and the meter cover.

3.

REMOVE ECU PLATE

(a)

Disconnect the 4 flat circuit plates.

(b)

Remove the 16 clips and the ECU plate.

4.

REMOVE BUZZER

I04259

I04260

I04261

I04262

I04263

–

BODY ELECTRICAL

COMBINATION METER

BE–91

2392

5.

REMOVE METER GLASS

Remove the 3 screws and the meter glass.

6.

REMOVE DECORATION PLATE

7.

REMOVE SPEEDOMETER

Remove the 2 screws.

8.

REMOVE TACHOMETER, FUEL RECEIVER GAUGE
AND ENGINE COOLANT TEMPERATURE RECEIVER
GAUGE

Remove the 4 screws.

9.

REMOVE COLD CATHODE TUBE WITH PLATE

I04078

Connector ”B”

Connector ”A”

BE0HL–03

BE–92

–

BODY ELECTRICAL

COMBINATION METER

2393

INSPECTION

1.

INSPECT COMBINATION METER CIRCUIT
Connector disconnected:

Disconnect connector ”A” and ”B” from the combination meter
and inspect the connectors on the wire harness side as shown
in the table.

Tester connection

Condition

Specified condition

A1 – Ground

Ignition switch ON

Battery positive voltage

A3 – A4

Constant

Continuity

A7 – Ground

Light control switch HEAD and headlight dimmer

switch HI

Continuity

A8 – Ground

B22 – Ground

Constant

Continuity

A10 – Ground

Window washer level warning switch Float down

Continuity

B1 – Ground

Ignition switch ON

Battery positive voltage

B4 – B6

Constant

Approx. 10 k

Ω

B13 – Ground

Constant

Battery positive voltage

B14 – Ground

Constant

Battery positive voltage

B15 – Ground

Light control switch in HEAD

Battery positive voltage

If circuit is not as specified, wiring diagram and inspect the cir-
cuits connected to other parts.

I04079

Connector ”C”

Connector ”D”

Connector ”F”

Connector ”E”

Connector ”G”

1

13

1

13

1

20

1

12

–

BODY ELECTRICAL

COMBINATION METER

BE–93

2394

2.

INSPECT COMBINATION METER CIRCUIT PLATE
Warning light circuit plate:

(a)

Remove meter cover.

(b)

Disconnect connectors ”C”, ”D”, ”E”, ”F” and ”G” from the
meter circuit plate and inspect the connectors on the wire
harness side as shown in the table.

Tester connection

Check indicator light

Specified condition

D10 (+) – D12 (–)

Fuel level warning light

Continuity

D6 (+) – D8 (–)

Headlight indiactor light (USA)

Taillight indiactor light (CANADA)

Continuity

D2 (+) – D4 (–)

Hi–beam indicator light

Continuity

C3 (+) – C7 (–)

Engine oil level warning light

Continuity

C3 (+) – C5 (–)

Malfunction indicator light

Continuity

E19 (–) – E20 (+)

Slip warning light

Continuity

E18 (–) – E20 (+)

TRAC OFF indicator light

Continuity

E17 (–) – E20 (+)

Window washer level warning light

Continuity

E16 (–) – E20 (+)

ABS warning light

Continuity

E15 (–) – E20 (+)

VSC OFF indicator light

Continuity

E14 (–) – E20 (+)

Brake warning light

Continuity

E13 (–) – E20 (+)

ECT SNOW indicator light

Continuity

E12 (–) – E20 (+)

Low oil pressure warning light

Continuity

E11 (–) – E20 (+)

ECT PWR indicator light

Continuity

E10 (–) – E20 (+)

Discharge warning light

Continuity

E9 (–) – E20 (+)

CRUISE MAIN indicator light

Continuity

E8 (–) – E20 (+)

Seat belt warning light

Continuity

E7 (–) – E20 (+)

Rear Lights warning light

Continuity

E6 (–) – E20 (+)

Headlight leveling indiactor

Continuity

E4 (+) – E5 (–)

SRS warning light

Continuity

E3 (–) – E4 (+)

Open door warning light

Continuity

F4 (–) – F12 (+)

A/T shift indicator light (L)

Continuity

F11 (–) – F12 (+)

A/T shift indicator light (2)

Continuity

F10 (–) – F12 (+)

A/T shift indicator light (3)

Continuity

F8 (–) – F12 (+)

A/T shift indicator light (P)

Continuity