IN0IO−01
BO4111
Negative Cable
−
INTRODUCTION FOR ALL OF VEHICLES
IN−9
9
Author: Date:
1996 LAND CRUISER (RM451U)
FOR ALL OF VEHICLES
PRECAUTION
1. FOR VEHICLES EQUIPPED WITH SRS AIRBAG AND
SEAT BELT PRETENSIONER
(a) The LAND CRUISER is equipped with an SRS (Supple-
mental Restraint System), such as the driver airbag and
front passenger airbag assembly.
Failure to carry out service operations in the correct se-
quence could cause the supplemental restraint system to
unexpectedly deploy during servicing, possibly leading to
a serious accident.
Further, if a mistake is made in servicing the supplemental
restraint system, it is possible the SRS may fail to operate
when required. Before servicing (including removal or
installation of parts, inspection or replacement), be sure
to read the following items carefully, then follow the cor-
rect procedure described in this manual.
(b) GENERAL NOTICE (1) Malfunction symptoms of the supplemental re-straint system are difficult to confirm, so the diag-
nostic trouble codes become the most important
source of information when troubleshooting. When
troubleshooting the supplemental restraint system,
always inspect the diagnostic trouble codes before
disconnecting the battery (See page DI−240).
(2) Work must be started after 90 seconds from the
time the ignition switch is turned to the ”LOCK” posi-
tion and the negative ( −) terminal cable is discon-
nected from the battery.
(The supplemental restraint system is equipped
with a back−up power source so that if work is
started within 90 seconds of disconnecting the neg-
ative (−) terminal cable from the battery, the SRS
may deploy.)
When the negative (−) terminal cable is discon-
nected from the battery, memory of the clock and
audio systems will be cancelled. So before starting
work, make a record of the contents memorized by
the each memory system. Then when work is fin-
ished, reset the clock and audio systems as before.
To avoid erasing the memory of each memory sys-
tem, never use a back− up power supply from anoth-
er battery.
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Z06300
BrightDark 2
3
Extinguished
1
−
BODY ELECTRICAL COMBINATION METER
BE−41
1996 LAND CRUISER (RM451U)
25. INSPECT ENGINE OIL LEVEL WARNING CIRCUIT
Disconnect the switch connector and inspect the connector on
wire harness side, as shown.
Tester connectionConditionSpecified condition
2 − GroundConstantContinuity
If continuity is not as specified, inspect the wire harness or
ground point.
26. INSPECT ENGINE OIL LEVEL WARNING LIGHT
(a) Disconnect the connector from the switch.
(b) Ground terminal 1 on the wire harness connector.
(c) Turn the ignition switch ON, and check that the warning
light lights up approximately 40 seconds later.
If the warning light does not light up, inspect bulb or wire har-
ness.
27. INSPECT LIGHT CONTROL RHEOSTAT
(a) Connect terminals 1 and 3 through a 3.4 W test bulb.
(b) Connect the positive (+) lead from the battery to terminal
1 and the negative ( −) lead to terminal 2.
(c) Turn the rheostat knob to fully counterclockwise, and
check that the test bulb goes out.
(d) Gradually turn the rheostat knob to clockwise, and check
that the test bulb brightness changes from dark to bright.
If operation is not as specified, replace the rheostat.
HINT:
Adjust the brightness of illumination lights by rheostat.
A/C Control Assembly
Antenna Switch
Ash Receptacle
Audio
Center Diff. Lock Switch
Cigarette Lighter
Defogger Switch
Hazard Warning Switch
Shift Lever
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Z06303
Z06304
BE−48
−
BODY ELECTRICAL POWER WINDOW CONTROL SYSTEM
1996 LAND CRUISER (RM451U)
4. Using an ammeter with a current − measuring probe:
INSPECT ONE TOUCH POWER WINDOW SYSTEM
(a) Remove the master switch with connector connected.
(b) Attach a current−measuring probe to terminal 6 of the
wire harness.
(c) Turn the ignition switch ON, and set the power window switch in the down position.
(d) As the window goes down, check that the current flow is up to approximately 7 A.
(e) Check that the current increases approximately 14.5 A or more when the window stops going down.
HINT:
The circuit breaker opens some 4 − 40 seconds after the win-
dow stops going down, so check must be made before the cir-
cuit breaker operates.
If operation is as specified, replace the master switch.
5. INSPECT POWER WINDOW SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
UP1 − 5, 3 − 4Continuity
OFF1 − 2, 3 − 4Continuity
DOWN1 − 2, 4 − 5Continuity
If continuity is not as specified, replace the switch.
6. Front Door:
INSPECT LEFT SIDE DOOR POWER WINDOW MO-
TOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
3 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.
7. Rear Door: INSPECT LEFT SIDE DOOR POWER WINDOW MO-
TOR 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.
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Z06307
Z06308
Z06309
14
Z06310
4
1
−
BODY ELECTRICAL POWER WINDOW CONTROL SYSTEM
BE−49
1996 LAND CRUISER (RM451U)
8. INSPECT DRIVER’S DOOR PTC OPERATION
(a) Disconnect the connector from the master switch.
(b) Connect the positive (+) lead from the battery to terminal
6 and the negative ( −) lead to terminal 13 on the wire har-
ness side connecter and raise the window to full closed
position.
(c) Continue to apply voltage, check that the current changes
from approximately 14 A to less that 1 A within 4 to 90 se-
conds.
(d) Disconnect the leads from terminals.
(e) After approximately 90 seconds, connect the positive (+) lead from the battery to terminal 13 and negative ( −) lead
to terminal 6, check that the window beginsto desced.
If operation is not as specified, replace the motor.
9. INSPECT PASSENGER’S DOOR PTC OPERATION
(a) Disconnect the connector from the power window switch.
(b) Connect the positive (+) lead from the battery to terminal 1 and the negative ( −) lead to terminal 4 on the wire har-
ness side connector, and raise the window to full closed
position.
(c) Connect the positive (+) lead from the battery to terminal 1 on the wire harness side connector.
(d) Disconnect the leads from terminals.
(e) After approximately 90 seconds, connect the positive (+)
lead from the battery to terminal 4 and negative ( −) lead
to terminal 1, check that the window begins to descend.
If operation is not as specified, replace the motor.
10. INSPECT P ASSENGER’S DOOR MOT OR OPERATION
(a) Connect the positive (+) lead from the battery to terminal 1 and the negative ( −) lead to terminal 3, and check that
the motor turns clockwise.
(b) Reverse the polarity, and check that the motor turns coun-
terclockwise.
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BE−50
−
BODY ELECTRICAL POWER WINDOW CONTROL SYSTEM
1996 LAND CRUISER (RM451U)
11. INSPECT REAR RIGHT SIDE DOOR MOTOR OPER-
AION
(a) Connect the positive (+) lead from the battery to terminal
2 and the negative ( −) lead to terminal 1, 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 RIGHT SIDE PTC OPERATION
13. INSPECT POWER MAIN RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 − 3Continuity
Apply B+ between
terminals 1 and 3.2 − 4Continuity
If continuity is not as specified, replace the relay.
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BE1ML−01
BE−58
−
BODY ELECTRICAL SLIDING ROOF SYSTEM
1996 LAND CRUISER (RM451U)
INSPECTION
1. INSPECT SLIDING ROOF SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
SLIDE OPEN3 − 4Continuity
SLIDE OFF−No continuity
SLIDE CLOSE4 − 6Continuity
TILT DOWN2 − 4Continuity
TILT OFF−No continuity
TILT UP5 − 4Continuity
If continuity is not as specified, replace the switch.
2. INSPECT SLIDING ROOF LIMIT SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
No.1 limit switch OFF
(SW pin released)−No continuity
No.1 limit switch ON(SW pin pushed in)1 − 5Continuity
No.2 limit switch OFF
(SW pin released)−No continuity
No.2 limit switch ON(SW pin pushed in)4 − 5Continuity
If continuity is not as specified, replace the switch.
3. INSPECT SLIDING ROOF MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative ( −) lead to terminal 3, and check that
the motor turns clockwise.
(b) Reverse the polarity, and check that the motor turns to clockwise.
If operation is not as specified, replace the motor.
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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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