1996 TOYOTA LAND CRUISER Workshop Manual

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BODY ELECTRICAL POWER SEAT CONTROL SYSTEM
BE−65
1996 LAND CRUISER (RM451U)
8. INSPECT REAR VERTICAL MOTOR CIRCUIT BREAK-
ER OPERATION
(a) Connect the positive (+) lead and the negative ( −) lead
from the battery to the rear vertical motor connector (illus-
trated terminals), and move the front edge of seat cushion
to the highest position.
(b) Continue to apply voltage, and check that there is a circuit
breaker operation noise within 4 to 60 seconds.
(c) Reverse the polarity, check that the seat cushion begins to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.
9. INSPECT RECLINING MOTOR (DRIVER’S SIDE) OP- ERATION
(a) Connect the positive (+) lead from the battery to terminal 1 and the negative ( −) lead to terminal 2, and check that
the motor turns clockwise.
(b) Reverse the polarity, and check that the motor turns coun-
terclockwise.
If operation is not as specified, replace the motor.
10. INSPECT RECLINING MOTOR (DRIVER’S SIDE) CIR- CUIT BREAKER OPERATION
(a) Connect the positive (+) lead from terminal 1 and negative
(−) lead to terminal 2.
Check that the seat back reclines to the most forward
position.
(b) Continue to apply voltage, and check that there is a circuit breaker operation noise within 4 to 40 seconds.
(c) Reverse the polarity, and check that the seat back starts
to fall backwards within approximately 60 seconds.
If operation is not as specified, replace the motor.
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BE−66
−
BODY ELECTRICAL POWER SEAT CONTROL SYSTEM
1996 LAND CRUISER (RM451U)
11. INSPECT RECLINING MOTOR (PASSENGER’S SIDE)
OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative ( −) lead to terminal 2, and check that
the motor turns counterclockwise.
(b) Reverse the polarity, and check that the motor turns clockwise.
If operation is not as specified, replace the motor.
12. INSPECT RECLINING MOTOR (PASSENGER’S SIDE) CIRCUIT BREAKER OPERATION
(a) Connect the positive (+) lead from the battery to terminal 2 and the negative ( −) lead to terminal 1 on the seat wire
harness side connector, and recline the seat back to the
most forward position.
(b) Continue to apply voltage, and check that there is a circuit breaker operation noise within 4 to 40 seconds.
(c) Reverse the polarity, and check that the seat back starts to fall backwards within approximately 60 seconds.
If operation is not as specified, replace the motor.
13. INSPECT LUMBAR SUPPORT MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal 1 and the negative ( −) lead to terminal 2, and check that
the lumber support moves release side.
(b) Reverse the polarity, and check that the lumbar support moves forward.
If operation is not as specified, replace the motor.
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−
BODY ELECTRICAL POWER SEAT CONTROL SYSTEM
BE−67
1996 LAND CRUISER (RM451U)
14. INSPECT LUMBAR SUPPORT MOTOR CI RCUIT
BREAKER OPERATION
(a) Connect the positive (+) lead from the battery to terminal
2 and the negative (−) lead to terminal 1 on the lumbar
support motor connector and move the lumbar support to
front end position.
(b) Continue to apply voltage, and check that there is a circuit
breaker operation noise within 4 to 60 seconds.
(c) Reverse the polarity, and check that the lumbar support begins to move release side within approximately 60 se-
conds.
If operation is not as specified, replace the motor.
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BE1MM−01
BE−68
−
BODY ELECTRICAL POWER MIRROR CONTROL SYSTEM
1206
Author: Date:
1996 LAND CRUISER (RM451U)
POWER MIRROR CONTROL SYSTEM
LOCATION
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BE1MN−01
Z06854
LEFT SIDEOFF
RIGHT SIDE
UP
RIGHT SIDE
DOWN
LEFT OFF
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BODY ELECTRICAL POWER MIRROR CONTROL SYSTEM
BE−69
1996 LAND CRUISER (RM451U)
INSPECTION
1. Left side:
INSPECT MIRROR SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
OFF−No continuity
UP1 − 10, 3 − 4Continuity
DOWN1 − 3, 4 − 10Continuity
LEFT1 − 9, 3 − 4Continuity
RIGHT1 − 3, 4 − 9Continuity
2. Off:
INSPECT MIRROR SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
OFF−No continuity
UP3 − 4Continuity
DOWN1 − 3Continuity
LEFT3 − 4Continuity
RIGHT1 − 3Continuity
3. Right side:
INSPECT MIRROR SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
OFF−No continuity
UP1 − 6, 3 − 4Continuity
DOWN1 − 3, 4 − 6Continuity
LEFT1 − 2, 3 − 4Continuity
RIGHT1 − 3, 2 − 4Continuity
If continuity is not as specified, replace the switch.
4. INSPECT MIRROR MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal in col-
umn ”A” and the negative ( −) lead to terminal in column ”B”,
check that the mirror operates in column ”C”.
Switch positionTester connectionSpecified condition
A (+)B (−)C (Operation)
23Mirror turns
upward
32Mirror turns
downward
13Mirror turns to
left side
31Mirror turns to
right side
If operation is not as specified, replace the mirror assembly.
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BE0SA−01
30 kHz300 kHz 3 MHz 30 MHz300 MHz
LF MF HFVHF
AM FM
Frequency modulation
Frequency
Designation
Radio wave
Modulation
Amplitube modulation
BE2818
FM (Stereo)
FM (Monaural) AM
BE2819
Fadinglonosphere
BE−70
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BODY ELECTRICAL AUDIO SYSTEM
1208
Author: Date:
1996 LAND CRUISER (RM451U)
AUDIO SYSTEM
DESCRIPTION
1. RADIO WAVE BAND
The radio wave bands used in radio broadcasting are as follows:
LF: Low Frequency
MF: Medium Frequency
HF: High Frequency
VHF: Very High Frequency
2. SERVICE AREA
There are great dif ferences in the size of the service area for AM
and FM monaural. Sometimes FM stereo broadcasts cannot be
received even through AM can be received in very clearly.
Not only does FM stereo have the smallest service area, but it
also picks up static and other types of interference (”noise”)
easily.
3. RECEPTION PROBLEMS
Besides the problem of static, there are also the problems
called ”fading”, ”multipath” and ”fade out”. These problems \
are
caused not by electrical noise but by the nature of the radio
waves themselves.
(1) FadingBesides electrical interference, AM broadcasts are
also susceptible to other types of interference, es-
pecially at night. This is because AM radio waves
bounce off the ionosphere at night. These radio
waves then interfere with the signals from the same
transmitter that reach the vehicle’ s antenna directly.
This type of interference is called ”fading”.
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BE2820
Multipath
BE2821
Fade Out
N17398
Example :HeadCapstan
Pinch Roller
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BODY ELECTRICAL AUDIO SYSTEM
BE−71
1209
Author: Date:
1996 LAND CRUISER (RM451U)
(2) Multipath
One type of interference caused by the bounce of
radio waves off of obstructions is called ”multipath”.
Multipath occurs when a signal from the broadcast
transmitter antenna bounces off buildings and
mountains and interferes with the signal that is re-
ceived directly.
(3) Fade Out Because FM radio waves are of higher frequencies
than AM radio waves, they bounce off buildings,
mountains, and other obstructions. For this reason,
FM signals often seem to gradually disappear or
fade away as the vehicle goes behind a building or
other obstruction. This is called ”fade out”.
4. COMPACT DISC PLAYER
Compact Disc (hereafter called ”CD”) Players use a laser beam
pick−up to read the digital signals recorded on the CD and re-
produce analog signals of the music, etc. There are 4.7 in. (12
cm) and 3.2 in. (8 cm) discs in the CD player.
HINT:
Never attempt to disassemble or oil any part of the player unit.
Do not insert any object other than a disc into the magazine.
NOTICE:
CD players use an invisible laser beam which could cause
hazardous radiation exposure. Be sure to operate the play-
er correctly as instructed.
5. Tape Player/Head Cleaning: MAINTENANCE
(a) Raise the cassette door with your finger.
Next, using a pencil or similar object, push in the guide.
(b) Using a clean ing pen or cotton applicator soaked in clean-
er, clean the head surface, pinch rollers and capstans.
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BE4331
BE−72
−
BODY ELECTRICAL AUDIO SYSTEM
1210
Author: Date:
1996 LAND CRUISER (RM451U)
6. CD Player/Disc Cleaning:
MAINTENANCE
If the disc gets dirty, clean the disc by wiping the surface from
the center to outside in the radial directions with a soft cloth.
NOTICE:
Do not use a conventional record cleaner or anti −static pre-
servative.
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