lock LEXUS SC400 1991 Service Repair Manual

Hood Lock Control
COMPONENTS
Front Bumper
BO±24±
BODY Hood (Hood Lock Control)
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REMOVAL OF HOOD LOCK CONTROL
(See page BO±24)
1. REMOVE FOLLOWING PARTS: (a) Front bumper
(b) LH front fender wheel opening moulding
(c) LH fender liner
(d) Fender splash shield
(e) Hood release lever
2. REMOVE HOOD LOCK (a) Remove two bolts, the nut and the hood lock.
(b) Disconnect the link from the lock.
3. REMOVE HOOD LOCK CONTROL CABLE (a) Disconnect the cable from clamps.
(b) Using the screwdriver, pry out the cable stopper fromgrommet.
HINT: Do not damage the grommet with the screwdriver.
±
BODY Hood (Hood Lock Control)BO±25
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(c) Pull the cable from front wheel housing to remove it.
INSTALLATION OF HOOD LOCK
CONTROL
(See page BO±24)
1. BEFORE INSTALLING PARTS, COAT LOCK WITH MP GREASE
Apply MP grease to the sliding surface of the lock.
2. INSTALL HOOD LOCK CONTROL CABLE (a) Push the rear side cable through the grommet.
(b) Using the screwdriver, push the cable stopper into thegrommet.
HINT: Do not damage the grommet with the screwdriver.
(c) Clamp the cable to the junction block.
(d) Pass the front side cable through the upper radiator
support.
3. INSTALL HOOD RELEASE LEVER
4. INSTALL HOOD LOCK TEMPORARILY
5. CHECK HOOD LOCK CONTROL FOR PROPER OPERATION
After checking for proper operation, tighten the nut and two
bolts to install the lock.
6. INSTALL FOLLOWING PARTS: (a) Hood release lever
(b) Fender splash shield
(c) LH fender liner
(d) LH front fender wheel opening moulding
(e) Front bumper
BO±26
±
BODY Hood (Hood Lock Control)
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2. ADJUST FRONT DOOR IN LEFT/RIGHT AND VERTICALDIRECTIONS
Loosen the door side hinge bolts to adjust.
3. ADJUST FRONT DOOR LOCK STRIKER (a) Check that the door fit and door lock link ages are
adjusted correctly.
(b) Using a screwdriver, remove the striker cover.
HINT: Tape the screwdriver tip before use.
(c) Adjust the striker position by slightly loosening the striker mounting screws, and hitting the striker with a
hammer. Tighten the striker mounting screws again.
(d) Install the striker cover.
BO±30
±
BODY Front Door (Fitting Adjustments)
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14. REMOVE FRONT DOOR INNER WEATHERSTRIPPry loose the clips from the edge of the panel and remove the
belt moulding.
15. REMOVE FRONT GLASS GUIDE Remove three screws and the guide.
16. REMOVE REAR GLASS GUIDE AND DOOR GLASS (a) Remove four screws from the guide.
(b) Remove joining the window regulator and glass.
(c) Pull the door glass with the guide out of the panel carefully.
HINT: Do not remove the guide from the glass.
17. REMOVE WINDOW REGULATOR Remove six nuts and the regulator.
18. REMOVE DOOR LOCK (a) Disconnect the two links from the outside handle andkey cylinder.
(b) Disconnect the connector.
(c) Using a trox rench, remove three screws and the door lock.
BO±36
±
BODY Front Door
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ASSEMBLY OF FRONT DOOR
(See page BO±31)
1. BEFORE INSTALLING PARTS, COAT THEN WITH MP GREASE
(a) Apply MP grease to the sliding surface and rollers of the
window regulator.
(b) Apply MP grease to the sliding surface of the door lock.
(c) Apply MP grease to the door glass guide rollers.
2. INSTALL SIDE PROTECTION MOULDING (a) Insert the top of the clips into the panel hole and tap themoulding onto the panel.
(b) Install two nuts.
3. INSTALL OUTSIDE HANDLE AND KEY CYLINDER (a) Install the key cylinder and the outside handle with three
bolts.
(b) Connect the connector to the key cylinder.
4. INSTALL DOOR LOCK (a) Install the door lock with three screws.
(b) Install the two links to the outside h andle and key
cylinder.
(c) Connect the connector.
5. INSTALL WINDOW REGULATOR Install the regulator with six nuts.
6. INSTALL GLASS GUIDE AND DOOR GLASS (a) Install the front glass guide with three screws to the door
panel.
(b) Insert the rear glass guide with the door glass inside the door panel.
(c) In sta ll th e gla ss to th e fro n t gla ss gu id e an d th e regulator.
(d) Install the rear glass guide with four screws.
BO±38
±
BODY Front Door
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( Coolant Level Warning Switch)
REMOVAL AND INSTALLATION OF COOLANT
LEVEL WARNING SWITCH
1. REMOVE COOLANT LEVEL WARNING SWITCH(a) Disconnect the connector.
(b) Remove the boot.
(c) Using the notches in the head of switch, turn the switchcounterclockwise and remove it.
NOTICE: Do not remove when engine is hot.
2. INSTALL COOLANT LEVEL WARNING SWITCH For installation, follow the removal procedure in reverse.
INSPECTION OF COOLANT LEVEL WARNING
SWITCH
1. INSPECT COOLANT LEVEL WARNING SWITCH(Continuity)
(a) Remove the radiator cap and open the radiator drainclock.
NOTICE: Do not remove when engine is hot.
(b) Drain the coolant about 1 liter. (1.1 US qts, 0.9 lmp. qts)
(c) Check that there is continuity between terminals (float down).
(d) Close radiator drain cock and fill the cooling system with
coolant.
(e) Check that there is no continuity between terminals (float up).
If continuity is not as specified, replace the switch.
2. INSPECT COOLANT LEVEL WARNING LIGHT (a) Disconnect the connector from the coolant level warning
switch and ground terminal 1 on the wire harness side
connector.
(b) Start the engine, check that the warning light lights up.
If the warning light does not light up, inspect the bulb or wire
harness.
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BODY ELECTRICAL SYSTEM Combination MeterBE±117
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POWER WINDOW CONTROL
SYSTEM
Description
The Power Window System raises and lowers the window glass in each door usi\
ng electrical power. The compo-
nent parts of this system and their functions are described in the following\
table.
Parts NameFunction
Theft Deterrent and
Door Lock
Control ECUCurrent is sent to the power window main relay only when the ignition sw\
itch
is on or within a specified period after the ignition switch is turned o\
ff.
Power Window
Main RelayCurrent from the theft deterrent and door lock control ECU to the power
window main relay switches large current from the master switch ON and O\
FF.
Master SwitchThis switch turns current to each power window motor ON and OFF and
switches it. It also includes a circuit for ºOne Touch Power Windowº use of
the driver's window and a built±in window lock switch which controls the
operation of all power window switches.
Power Window
SwitchThis switch is installed on each door except on the driver's door. It is supplied
with current from the master siwtch and turns the current to the motor O\
N and
OFF and switches the current. This switch will not operate when the wind\
ow
lock switch inside the master switch is in the LOCK position.
Power Window
MotorThis motor moves the window regulator directly when current is supplied \
to it
from the master switch or power window switch. The motor has a built±\
in
circuit breaker.
Parts Location
±
BODY ELECTRICAL SYSTEM Power Window Control SystemBE±147
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Parts Inspection
(Power Window Master Switch)
REMOVAL AND INSTALLATION OF
POWER WINDOW MASTER SWITCH
(See page BO±33)
INSPECTION OF POWER WINDOW
MASTER SWITCH
INSPECT POWER WINDOW MASTER SWITCH
(Continuity)
Inspect the switch continuity between terminals.
Window operation Driver's Passenger's
Terminal
Switch position
UP
OFF
DOWN
UP
OFF
DOWN
Window Unlock
Window Lock
If continuity is not as specified, replace the master siwtch.
(Illumination)
(a) Set the window lock switch to the unlock position.
(b) Connect the positive (+) lead from the battery to terminal
4 and the negative (±) lead to terminal 8, check that all
the illuminations light up.
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BODY ELECTRICAL SYSTEM Power Window Control SystemBE±149
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(c) Set the window lock switch to the lock position, checkthat all the passenger's power window switch
illuminations go out.
If operation is not as specified, replace the master switch.
(One Touch Power Window System/Current of Circuit)
Inspection using an ammeter.
(a) Disconnect the connector from the master switch.
(b) C onnect the positive (+) lead from the ammeter to
terminal 9 on the wire harness side connector and the
negative (±) lead to negative terminal of the battery.
(c) Connect the positive (+) lead from the battery to terminal
10 on the wire harness side connector.
(d) As the window goes down, check that the current flow is approximately 7 amperes.
(e) Check that the current increases approximately 14.5 amperes or more when the window stops going down.
HINT: The circuit breaker opens some 4±40 seconds after the
window stops going down, so that check must be made be-
fore the circuit breaker operates.
If the operation is as specified, replace the master switch.
Inspection using an ammeter with a current±measuring
probe.
(a) Remove the master switch with connector connected.
(b) Attach a current±measuring probe to terminal 4 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 approximately 7 amperes.
(e) Check that the current increases approximately 14.5 amperes or more when the window stops going down.
HINT: The circuit breaker opens some 4±40 seconds after the
window stops going down, so that check must be made be-
fore the circuit breaker operates.
If operation is as specified, replace the master switch.
BE±150
±
BODY ELECTRICAL SYSTEM Power Window Control System
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