Page 203 of 1399

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BODY ELECTRICAL SLIDING ROOF SYSTEM
BE−59
1996 LAND CRUISER (RM451U)
4. INSPECT SLIDING ROOF MOT OR CIRCUIT BREAKER
OPERATION
(a) With the sliding roof in the fully opened position, hold the
sliding roof switch in ”OPEN” position and check that
there is a circuit breaker operation noise within 4 to 40 se-
conds.
(b) With the sliding roof in fully opened position, hold the slid-
ing roof switch in ”CLOSE” position and check that the
sliding roof begins to close within 60 seconds.
If operation is not as specified, replace the motor.
5. INSPECT SLIDING ROOF MOTOR WIRE CIRCUIT
(a) Check that there is continuity between terminals A2 and B2.
(b) Check that there is continuity between terminals A3 and B3.
(c) Check that there is continuity between terminals A6 and B1.
If continuity is not as specified, replace the switch.
6. INSPECT SLIDING ROOF CONTROL RELAY CIRCUIT
Disconnect the connector from the relay and inspect the con-
nector on the wire harness side, as shown in the chart.
Tester connectionConditionSpecified condition
1 − GroundSliding roof control switch position (SLIDE) OFF
or CLOSENo continuity
1 − GroundSliding roof control switch position (SLIDE)
OPENContinuity
2 − GroundSliding roof control switch position (SLIDE) OFF
or OPENNo continuity
2 − GroundSliding roof control switch position (SLIDE)
CLOSEContinuity
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BODY ELECTRICAL POWER SEAT CONTROL SYSTEM
BE−63
1996 LAND CRUISER (RM451U)
2. INSPECT POWER SEAT SWITCH (PASSENGER’S
SIDE) CONTINUITY
Slide switch:
Switch positionTester connectionSpecified condition
FORWARD5 − 10, 8 − 9Continuity
OFF5 − 8 − 9Continuity
BACKWARD5 − 9, 8 − 10Continuity
Front vertical switch:
Switch positionTester connectionSpecified condition
UP4 − 11, 10 − 12Continuity
OFF4 − 11 − 12Continuity
DOWN4 − 12, 10 − 11Continuity
Rear vertical switch:
Switch positionTester connectionSpecified condition
UP2 − 10, 6 − 7Continuity
OFF2 − 6 − 7Continuity
DOWN2 − 7, 6 − 10Continuity
Reclining switch:
Switch positionTester connectionSpecified condition
FORWARD4 − 10, 7 − 9Continuity
OFF4 − 7 − 9Continuity
BACKWARD4 − 9, 7 − 10Continuity
If continuity is not as specified, replace the switch.
3. INSPECT SLIDE MOTOR 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.
4. INSPECT SLIDE MOTOR CIRCUIT BREAKER OPERA-
TION
(a) Connect the positive (+) lead and the negative ( −) lead
from the battery to slide motor connector (illustrated termi-
nals), and slide the seat to front end position.
(b) Continue to apply voltage, check that there is a circuit breaker operation noise within 4 to 60 seconds.
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BE−64
−
BODY ELECTRICAL POWER SEAT CONTROL SYSTEM
1996 LAND CRUISER (RM451U)
(c) Reverse the polarity, and check that the seat begins to
move backwards within approximately 60 seconds.
If operation is not as specified, replace the motor.
5. INSPECT FRONT VERTICAL MOTOR 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 clockwise.
(b) Reverse the polarity, check that the motor turns counter- clockwise.
If operation is not as specified, replace the motor.
6. INSPECT FRONT VERTICAL MOTOR CI RCUIT
BREAKER OPERATION
(a) Connect the positive (+) lead and the negative ( −) lead
from the battery to the front 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 , and check that the seat cushion be-
gins to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.
7. INSPECT REAR VERTICAL MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal 2 and the negative ( −) lead to terminal 1, 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.
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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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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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BE1MR−01
−
BODY ELECTRICAL AUDIO SYSTEM
BE−73
1996 LAND CRUISER (RM451U)
TROUBLESHOOTING
NOTICE:
When replacing the internal mechanism (computer part) of the audio system, be careful that no part
of your body or clothes comes in contact with the terminals of the leads from the IC, etc. of the re-
placement part (spare part).
HINT:
This inspection procedure is a simple troubleshooting which should be carried\
out on the vehicle during sys-
tem operation and is based on the assumption that the cause of trouble lies\
with the system components
(except for the wires and connectors, etc.).
Always inspect the trouble taking the following items into consideration\
.
Open or short circuit of the wire harness
Connector or terminal connection fault
ProblemNo.
RadioNo power coming in.1
Power coming in, but radio not operating.2
Noise present, but AM − FM not operating.3
Either speaker does not work.4
Either AM or FM does not work.5
Reception poor (Volume faint).5
Few preset tuning bands.5
Sound quality poor.6
Cannot set station select button.7
Preset memory disappears.7
Tape PlayerCassette tape cannot be inserted.8
Cassette tape inserts, but no power.9
Power coming in, but tape player not operating.10
Either speaker does not work.11
Sound quality poor (Volume faint).12
Tape jammed, malfunction with tape speed or auto − reverse.13
APS, SKIP, RPT buttons not operating.14
Cassette tape will not eject.15
CD PlayerCD cannot be inserted.16
CD inserts, but no power.17
Power coming in, but CD player not operating.18
Sound jumps.19
Sound quality poor (Volume faint).20
Either speaker does not work.21
CD will not eject.22
AntennaAntenna does not fully extend of fully retract.23
Antenna − related.24
NoiseNoise produced by vibration or shock while driving.25
Noise produced when engine starts.26
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