Lexus ES300 (1997 year). Manual — part 187
V08452
Disconnect connectors ”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
31
Ground terminal B7 and turn the light control
switch to TAIL. Does taillight indicator light up?
Is bulb OK?
Replace circuit plate.
No
Abnormal operation or indicator
does not light up.
TAILLIGHT INDICATOR
Turn the light control switch to TAIL.
Does taillight light up?
Inspect headlight and taillight system.
(See page
).
Wire harness faulty between meter and:
Light control switch.
Taillight Relay, Panel Relay (CANADA)
Is there battery positive voltage (0 V
↔
battery
positive voltage) between following terminals with
light control switch TAIL?
C5 and ground.
Connect connectors ”B” to meter.
Disconnect connector ”B” from meter.
Inspect connector on combination meter side as
follows.
Open circuit in wire harness between terminal
B7 of meter and ground.
Ground faulty.
Temporarily install another circuit plate.
Is operation normal?
Replace bulb.
Then recheck system.
Replace combination
meter computer.
Then recheck system.
No
Yes
Yes
Yes
Yes
No
No
No
COMBINATION
METER
–
BODY ELECTRICAL
COMBINATION METER
BE–83
1467
1997 LEXUS ES300 (RM511U)
V08453
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
32
Ground terminal B7 and turn light control switch to
HEAD. Does headlight indicator light up?
Is bulb OK?
Replace circuit plate.
No
Abnormal operation or indicator
does not light up.
HEADLIGHT INDICATOR
Turn light control switch to HEAD.
Do headlights light up?
Inspect headlight and taillight system.
(See page
Is there battery positive voltage (0 V
↔
battery
positive voltage) between following terminals with
light control switch HEAD?
C5 and ground.
Connect connector ”A” to meter.
Disconnect connector ”B” from meter.
Inspect connector on combination meter side as
follows.
Open circuit in wire harness between terminal
B7 of meter and ground.
Ground faulty.
Temporarily install another circuit plate.
Is operation normal?
Replace bulb.
Then recheck system.
Replace combination
meter computer.
Then recheck system.
No
Yes
Yes
Yes
Yes
No
No
No
COMBINATION
METER
Wire harness faulty between meter and:
Light control switch
HEAD Fuse
Headlight control relay
BE–84
–
BODY ELECTRICAL
COMBINATION METER
1468
1997 LEXUS ES300 (RM511U)
BE05E–01
Z18765
Engine Room
Junction Block
DOME Fuse
ECU–B Fuse
HEAD (LH) Fuse
HEAD (RH) Fuse
Engine Oil Level Sensor
Washer Level Warning Switch
Washer Tank
Brake Fluid Level
Waming Switch
ECM
ABS ECU or
ABS and Traction ECU
O/D OFF Switch
Combination Meter
Meter Circuit
Bulb Check Relay
Light Control
Rheostat
Instrument Panel
Junction Block
GAUGE Fuse
IGN Fuse
Seat Belt Buckle Switch
Airbag Sensor Assembly
–
BODY ELECTRICAL
COMBINATION METER
BE–85
1469
1997 LEXUS ES300 (RM511U)
LOCATION
Z18766
Fuel Sender Gauge
1
Light Failure Sensor
Fuel Tank
2
3
4
1: Engine Coolant Temperature Sender Gauge
2: Low Oil Pressure Switch
3: Park/Neutral Position Switch
4: Vehicle Speed Sensor
BE–86
–
BODY ELECTRICAL
COMBINATION METER
1470
1997 LEXUS ES300 (RM511U)
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