Lexus ES300 (1997 year). Service manual — part 121

BE05H–01

N19978

N19979

N19980

N19981

N19982

BE–90

–

BODY ELECTRICAL

COMBINATION METER

1474

1997 LEXUS ES300 (RM511U)

DISASSEMBLY

1.

REMOVE BACK COVER

(a)

Remove the 4 screws.

(b)

Remove the back cover from the meter case.

2.

REMOVE METER GLASS

(a)

Remove the 6 claws.

(b)

Remove the meter glass from the meter case.

3.

REMOVE METER PLATE

(a)

Remove the 3 claws.

(b)

Remove the meter plate from the meter case.

4.

REMOVE METER CIRCUIT PLATE

(a)

Remove the 27 bulbs.

(b)

Remove the 22 screws.

(c)

Remove the meter circuit plate from the meter case.

N19983

–

BODY ELECTRICAL

COMBINATION METER

BE–91

1475

1997 LEXUS ES300 (RM511U)

5.

REMOVE SPEEDOMETER ASSEMBLY

6.

REMOVE FUEL GAUGE

7.

REMOVE ENGINE COOLANT TEMPERATURE
GAUGE

BE05I–03

N20924

Connector ”A”

Connector ”B”

Connector ”C”

Connector ”D”

J–13–1–A

J–16–I

J–10–I
J–13–1

1

2

3

4

5

6

7

1

2

3

4

5

6

7

8

10 11 12 13

9

8

10 11 12 13

9

14 15 16

1

2

3

4

5 6

7 8

9 10

1

2

3

4

5

6

7

8

9 10 11 12 13

BE–92

–

BODY ELECTRICAL

COMBINATION METER

1476

1997 LEXUS ES300 (RM511U)

INSPECTION

1.

INSPECT COMBINATION METER WIRING CIRCUIT

Disconnect the connector ”A”, connector ”B”, connector ”C” and
connector ”D” from the combination meter and inspect the con-
nectors on the wire harness side.

Park/Neutral Position Switch:

Tester connection

Condition

Specified condition

B12 – Ground

Ignition switch ON and shift lever position ”P”

Battery positive voltage

B14 – Ground

Ignition switch ON and shift lever position ”R”

Battery positive voltage

C1 – Ground

Ignition switch ON and shift lever position ”N”

Battery positive voltage

C2 – Ground

Ignition switch ON and shift lever position ”D”

Battery positive voltage

B10 – Ground

Ignition switch ON and shift lever position ”2”

Battery positive voltage

B9 – Ground

Ignition switch ON and shift lever position ”L”

Battery positive voltage

Turn Signal Switch and Hazard Warning Switch:

Tester connection

Condition

Specified condition

B13 – Ground

Hazard warning switch ON

Battery positive voltage

↔

0V

B13 – Ground

Ignition switch ON and turn signal switch to

”Right”

Battery positive voltage

↔

0V

B11 – Ground

Hazard warning switch ON

Battery positive voltage

↔

0V

B11 – Ground

Ignition switch ON and turn signal switch to

”Left”

Battery positive voltage

↔

0V

Headlight:

Tester connection

Condition

Specified condition

C3 – C5

Light control switch ”HEAD”

(Dimmer switch ”LO”)

No voltage

C3 – C5

Light control switch ”HEAD”

(Dimmer switch ”HI” or ”Flash”)

Battery positive voltage

GAUGE Fuse:

Tester connection

Condition

Specified condition

D3 – Ground

Ignition switch position ACC, START

No voltage

D3 – Ground

Ignition switch position ON

Battery positive voltage

–

BODY ELECTRICAL

COMBINATION METER

BE–93

1477

1997 LEXUS ES300 (RM511U)

IGN Fuse:

Tester connection

Condition

Specified condition

B2 – Ground

*

2

Ignition switch position LOCK, ACC,

START

No voltage

B2 – Ground

*

2

Ignition switch position ON

Battery positive voltage

Fuel Sender Gauge:

Tester connection

Condition

Specified condition

D12 – D13

Float position Full, Approx. 91.1 mm

(3.587 in.)

Approx. 4.6V

D12 – D13

Float position 1/2, Approx. 34.2 mm

(1.346 in.)

Approx. 2.4V

D12 – D13

Float position Empty, Approx. 30.8 mm

(1.213 in.)

Approx. 0.3V

D11 – D12

Ignition switch ON

Approx. 5V

Ground (Signal):

Tester connection

Condition

Specified condition

D13 – Ground

Constant

Continuity

Ground (Engine):

Tester connection

Condition

Specified condition

A1 – Ground

Constant

Continuity

Ground (Power):

Tester connection

Condition

Specified condition

B15 – Ground

Constant

Continuity

Generator ”L” Terminal:

Tester connection

Condition

Specified condition

A10 – Ground

Engine stop

Continuity

A10 – Ground

Engine running

Battery positive voltage

Engine Oil Level Warning Switch:

Tester connection

Condition

Specified condition

C7 – Ground

Oil temperature above approx. 55

°

C

(131

°

F) and switch position OFF (float down)

No continuity

C7 – Ground

Oil temperature below approx. 55

°

C

(131

°

F)

Continuity

C7 – Ground

Oil temperature above approx. 55

°

C

(131

°

F) and switch position ON (float up)

Continuity

DOME fuse:

Tester connection

Condition

Specified condition

C8 – Ground

Constant

Battery positive voltage

Rheostat Light Control:

Tester connection

Condition

Specified condition

D1 – Ground

Light control switch TAIL or HEAD and

turn rheostat volume knob.

Voltage changes no voltage or voltage

fluctuates

*

2

Shift lever position is ”N” or ”P” position.

If circuit is not as specified, refer to BE–60 wiring diagram and inspect the circuit connected to other parts.