Lexus ES300 (1997 year). Manual — part 249
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)
V08431
ALL METERS, GAUGES, AND
ILLUMINATIONS
ALL METERS, GAUGES, AND
ILLUMINATIONS
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.
Replace circuit plate. Then recheck system.
HINT : While carrying out the following inspection, make certain that the connectors and terminals are properly con-
nected.
No
Yes
4
5
Brightness does not change even
when light control switch is operated.
(OFF
↔
TAIL)
Brightness does not change even when
rheostat volume is turned.
RHEOSTAT LIGHT
CONTROL VOLUME
COMBINATION
METER
COMBINATION
METER
Yes
No
Yes
No
INSPECT TAILLIGHT SIGNAL CIRCUIT
Does voltage change between terminal B8 and
ground as follows?
Taillight signal circuit faulty on vehicle side.
Inspect illumination light system.
Battery positive voltage
Replace rheostat light control volume.
Then recheck system.
Wire harness faulty between terminal D1 of meter
and terminal D2 of rheostat volume and rheostat
light control.
Condition
Voltage
Light control
switch
position
OFF
No voltage
TAIL or HEAD
INSPECT RHEOSTAT LIGHT CONTROL VOLUME
(See page BE–)
Is operation normal?
Connect connector to rheostat volume.
Disconnect connector ”D” from meter.
Inspect connector on wire harness side as follows.
Turn ignition switch ON. Does voltage change
evenly between terminal D1 and D2 when rheostat
knob is turned?
Replace circuit plate. Then recheck system.
BE–62
–
BODY ELECTRICAL
COMBINATION METER
1446
1997 LEXUS ES300 (RM511U)
V08432
ALL METERS, GAUGES, AND
ILLUMINATIONS
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.
Replace circuit plate. Then recheck system.
6
7
SPEEDOMETER
Does not go out while starter running.
Speedometer does not operate while
driving
Replace circuit plate. Then recheck system.
No
Yes
COMBINATION
METER
Yes
Yes
Yes
No
No
No
Wire harness faulty between terminal B16 of Meter
and ST fuse.
Turn ignition switch START.
Is there battery positive voltage between terminal and
ground or B16?
Does odometer operate while driving?
Does trip meter operate while driving?
CONTINUED ON NEXT PAGE
Jack up the vehicle.
Turn ignition switch ON. Rotate propeller shaft.
Does the voltage between terminals C9 and C10
change (approx. 0V to 11V or more) per revolution of
propeller shaft?
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.
INSPECT TRIP METER OPERATION
INSPECT ODOMETER OPERATION
Replace speedometer.
Then recheck system.
Go to step 7–A
–
BODY ELECTRICAL
COMBINATION METER
BE–63
1447
1997 LEXUS ES300 (RM511U)
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