Lexus ES300 (1997 year). Manual — part 267
N22088
2
1
N22089
2
1
N21865
(a)
(b)
2
1
1
2
N21868
2
1
N21869
2
1
BE–132
–
BODY ELECTRICAL
POWER SEAT CONTROL SYSTEM
1516
1997 LEXUS ES300 (RM511U)
9.
INSPECT REAR VERTICAL MOTOR PTC THERM-
ISTOR OPERATION
(a)
Connect the positive (+) lead from the battery to terminal
1, the positive (+) lead from the ammeter to terminal 2 and
the negative (–) lead to the battery negative (–) terminal,
then move the seat cushion to the highest position.
(b)
Continue to apply voltage, check that the current changes
to less than 1 ampere within 4 to 90 seconds.
(c)
Disconnect the leads from the terminals.
(d)
Approximately 60 seconds later, connect the positive (+)
lead from the battery to terminal 2 and the negative (–)
lead to terminal 1, check that the seat cushion begins to
descend.
If operation is not as specified, replace the seat adjuster.
10.
INSPECT RECLINING MOTOR OPERATION
(a)
Connect the positive (+) lead from the battery to terminal
1 and the negative (–) lead to terminal 2, check that the
motor turns counterclockwise.
(b)
Reverse the polarity, check that the motor turns clock-
wise.
If operation is not as specified, replace the seat adjuster.
11.
INSPECT RECLINING MOTOR PTC THERMISTOR OP-
ERATION
(a)
Connect the positive (+) lead from the battery to terminal
2, the positive (+) lead from the ammeter to terminal 1 and
the negative (–) lead to the battery negative (–) terminal,
then recline the seat back to the most forward position.
(b)
Continue to apply voltage, check that the current changes
to less than 1 ampere within 4 to 90 seconds.
(c)
Disconnect the leads from the terminals.
(d)
Approximately 60 seconds later, connect the positive (+)
lead from the battery to terminal 1 and the negative (–)
lead to terminal 2, check that the seat back starts to fall
backward.
If operation is not as specified, replace the seat adjuster.
N21494
LH Mirror
Mirror Motor
Mirror Switch
Ignition Switch
Instrument Panel Junction Block
CIG Fuse
RH Mirror
Mirror Motor
BE05U–01
–
BODY ELECTRICAL
POWER MIRROR CONTROL SYSTEM
BE–133
1517
1997 LEXUS ES300 (RM511U)
POWER MIRROR CONTROL SYSTEM
LOCATION
BE05V–01
N13473
1
2
3
4
5
6
7
8
9
10
N21376
Wire Harness Side
1 2 3 4 5 6 7 8 9 10
h–10–1–c
BE–134
–
BODY ELECTRICAL
POWER MIRROR CONTROL SYSTEM
1518
1997 LEXUS ES300 (RM511U)
INSPECTION
1.
Master switch left side:
INSPECT MIRROR SWITCH CONTINUITY
Switch position
Tester connection
Specified condition
OFF
–
No continuity
UP
3 – 4 7 – 8
Continuity
DOWN
3 – 8 4 – 7
Continuity
LEFT
4 – 9 7 – 8
Continuity
RIGHT
4 – 7 8 – 9
Continuity
2.
Master switch right side:
INSPECT MIRROR SWITCH CONTINUITY
Switch position
Tester connection
Specified condition
OFF
–
No continuity
UP
2 – 4
1 – 7 – 8
Continuity
DOWN
4 – 7
1 – 2 – 8
Continuity
LEFT
4 – 10
1 – 7 – 8
Continuity
RIGHT
4 – 7
1 – 8 – 10
Continuity
If continuity is not as specified, replace the switch.
If continuity is as specified. inspect the switch circuit.
3.
INSPECT MIRROR SWITCH CIRCUIT
Disconnect the connector from the switch and inspect the con-
nector on the wire harness side.
Tester connection
Condition
Specified condition
8 – Ground
Constant
Continuity
4 – Ground
Ignition switch position LOCK
No voltage
4 – Ground
Ignition switch position ACC or ON
Battery positive voltage
If the circuit is not as specified, inspect the circuits connected
to other parts.
N13659
6
5
N21212
1
2
2
1
N21213
3
2
3
2
–
BODY ELECTRICAL
POWER MIRROR CONTROL SYSTEM
BE–135
1519
1997 LEXUS ES300 (RM511U)
4.
INSPECT INDICATOR LIGHT OPERATION
Connect the positive (+) lead from the battery to terminal 5 and
the negative (–) lead to terminal 6, and check that the indicator
light does not light up, replace the switch.
5.
INSPECT MIRROR MOTOR OPERATION
(a)
Connect the positive (+) lead from the battery to terminal
1 and the negative (–) lead to terminal 2, and check that
the mirror turns upward.
(b)
Reverse the polarity, and check that the mirror turns
downward.
(c)
Connect the positive (+) lead from the battery to terminal
3 and the negative (–) lead to terminal 2, and check that
the mirror turns to the left side.
(d)
Reverse the polarity, and check that the mirror turns to the
right side.
If operation is not as specified, replace the mirror.
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