Lexus GS300/400 (2000 year). Service 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
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