1996 TOYOTA LAND CRUISER lock

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BODY ELECTRICAL POWER DOOR LOCK CONTROL SYSTEM
BE−53
1996 LAND CRUISER (RM451U)
(a) Connect the positive (+) lead from the battery to terminal
2 and the negative ( −) lead to terminal 4, and check that
the door lock link moves to UNLOCK position.
(b) Remove the polarity, and check that the door lock link move to LOCK position.
If operation is not as specified, replace the door lock assembly.
6. Using an ammeter: INSPECT PTC THERMISTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal 2.
(b) Connect the positive (+) lead from the ammeter to termi- nal 4 and the negative ( −) lead to battery negative ( −) ter-
minal, and check that the current changes from approxi-
mately 3.2 A to less than 0.5 A within 20 to 70 seconds.
(c) Disconnect the leads from terminals.
(d) After approximately 60 seconds, connect the positive (+) lead from the battery to terminal 4 and the negative ( −)
lead to terminal 2, and check that the door lock moves to
LOCK position.
If operation is not as specified, replace the door lock assembly.
7. Using an ammeter with a current−measuring probe: INSPECT PTC THERMISTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal 2 and the negative ( −) lead to terminal 4.
(b) Attach a current−measuring probe to either the positive (+) lead or the negative ( −) lead, and check that the cur-
rent changes from approximately 3.2 A to less than 0.5 A
within 20 to 70 seconds.
(c) Disconnect the leads from terminals.
(d) After approximately 60 seconds, reverse the polarity, and
check that the door lock moves to LOCK position.
If operation is not as specified, replace the door lock assembly.
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BE−54
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BODY ELECTRICAL POWER DOOR LOCK CONTROL SYSTEM
1996 LAND CRUISER (RM451U)
8. INSPECT DOOR UNLOCK DETECTION SWITCH CON-
TINUITY
Switch positionTester connectionSpecified condition
OFF (Door Lock set to
LOCK)−No continuity
ON (Door Lock set toUNLOCK)1 − 3Continuity
If continuity is not as specified, replace the door lock assembly.
9. INSPECT POWER MAIN RELAY CONTINUITY (See
page BE−46 )
10. INSPECT DOOR LOCK 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
2 − GroundDriver’s door courtesy switch position OFF (Door
closed)No continuity
2 − GroundDriver’s door courtesy switch position ON (Door
opened)Continuity
5 − GroundPassenger’s door lock switch position OFF (Door
locked)No continuity
5 − GroundPassenger’s door lock switch position ON (Door
unlocked)Continuity
6 − GroundDriver’s door lock switch position OFF (Door
locked)No continuity
6 − GroundDriver’s door lock switch position ON (Door
unlocked)Continuity
7 − GroundKey unlock warning switch position OFF (Ignition
Key Removed)No continuity
7 − GroundKey unlock warning switch position ON (Ignition
Key Set)Continuity
9 − GroundDriver’s door key lock and unlock switch position
OFF or LOCK (Door key free of turned to lock)No continuity
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BODY ELECTRICAL POWER DOOR LOCK CONTROL SYSTEM
BE−55
1996 LAND CRUISER (RM451U)9 −
Ground
Driver’s door key lock and unlock switch position
UNLOCK (Door key turned to unlock)Continuity
10 − GroundDoor lock manual switch position OFF or
UNLOCKNo continuity
10 − GroundDoor lock manual switch position LOCKContinuity
11 − Ground
Door lock manual switch and passenger’s door
key lock and unlock switch position OFF or
UNLOCK
No continuity
11 − GroundDoor lock manual switch and passenger’s door
key lock and unlock switch position UNLOCKContinuity
12 − Ground
Driver’s and passenger’s door key lock and
unlock switch position OFF or UNLOCK (Door
key free or turned to unlock)
No continuity
12 − GroundDriver’s or passenger’s door key lock and unlock
switch position LOCK (Door key turned to lock)Continuity
14 − GroundPassenger’s door courtesy switch position OFF
(Door closed)No continuity
14 − GroundPassenger’s door courtesy switch position ON
(Door opened)Continuity
16 − GroundConstantContinuity
1 − GroundIgnition switch position LOCK or ACCNo voltage
1 − GroundIgnition switch position ONBattery positive voltage
8 − GroundConstantBattery positive voltage
If circuit is as specified, inspect the door lock signal.
If the circuit is not as specified, inspect the circuits connected
to other parts.
11. INSPECT DOOR LOCK SIGNAL
HINT:
When the relay circuit is as specified, inspect the door lock sig-
nal.
(a) Connect the connector to the relay.
(b) Connect the positive (+) lead from the voltmeter to termi-
nal 3 and the negative ( −) lead to terminal 4.
(c) Set the door lock manual switch to UNLOCK, and check
that the voltage rises from 0 V to battery positive voltage
for approximately 0.2 seconds.
(d) Reverse the polarity of the voltmeter leads.
(e) Set the door lock manual switch to LOCK, and check that the voltage rises from 0 V to battery positive voltage for
approximately 0.2 seconds.
If operation is not as specified, replace the relay.
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BE−56
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BODY ELECTRICAL POWER DOOR LOCK CONTROL SYSTEM
1996 LAND CRUISER (RM451U)
12. NSPECT KEY−OFF POWER WINDOW SIGNAL
HINT:
When the relay circuit is as specified, inspect the key −off power
window signal.
(a) Connect the connector to the relay.
(b) Connect the positive (+) lead from the voltmeter to termi- nal 15 and the negative ( −) lead to terminal 16.
(c) Close the door with ignition switch truned to LOCK or ACC, check that the meter needle indicates battery posi-
tive voltage.
(d) Open the door, check that the meter needle indicates 0 V.
(e) Turn the ignition switch ON, check that the meter needle
indicate battery positive voltage again.
If operation is not as specified, replace the relay.
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BE1ML−01
BE−58
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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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BE−60
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BODY ELECTRICAL SLIDING ROOF SYSTEM
1996 LAND CRUISER (RM451U) 3 −
Ground
Sliding roof control switch position (TILT) OFF or
DOWNNo continuity
3 − GroundSliding roof control switch position (TILT) UPContinuity
4 − GroundConstantNo continuity
4 − 5Constant*1Continuity
5 − GroundConstantNo continuity
7 − GroundSliding roof control switch position (TILT) OFF or
UPNo continuity
7 − GroundSliding roof control switch position (TILT) DOWNContinuity
8 − GroundNo.1 limit switch position OFF (Sliding roof tilted
up or open approx. 200 mm (7.87 in.))No continuity
8 − GroundNo.1 limit switch position ON (Except for
conditions mentioned above)Continuity
9 − GroundNo.2 limit switch position OFF (Sliding roof
closed)No continuity
9 − GroundNo.2 limit switch position ON (Sliding roof open)Continuity
11 − GroundConstantContinuity
6 − GroundIgnition switch position LOCK or ACC*2No voltage
6 − GroundIgnition switch position ONBattery positive voltage
12 − GroundConstantBattery positive voltage
*1: There is resistance because this circuit is include motor.
*
2: Exceptions: During 60 second period after ignition switch
ON → OFF (ACC) or until driver or passenger door is opened
after ignition switch ON → OFF (ACC).
If circuit is as specified, replace the relay.
If circuit is not as specified, inspect the circuits connected to oth-
er parts.
7. INSPECT POWER MAIN RELAY CONTINUITY (See page BE−46 )
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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
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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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