ISUZU TROOPER 1998 Service Repair Manual

8H±2SECURITY AND LOCKS
Service Precaution
WARNING: I F S O E Q U IPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.
Front Door Lock Assembly
Front Door Lock Assembly and Associated Parts
632RS003
Legend
(1) Door Trim Panel
(2) Waterproof Sheet
(3) To Outside Handle(4) Rear Guide Rail
(5) Door Lock Assembly
(6) Door Lock Switch Connector (W/Power Door
Lock)
Removal
1. Disconnect the battery ground cable.
2. Remove the door trim panel.3. Remove the waterproof sheet.
Refer to the Window Regulator removal procedure in
Body Structure section.

SECURITY AND LOCKS8H±3
4. Raise the glass up to the uppermost position, and
then remove the rear guide rail.
5. Disconnect the door lock switch connector (w/power
door lock) and locking links (arrow marks positions),
then remove the door lock assembly fixing screws
and door lock assembly.
632RS004
Legend
(1) To Inside Lock Knob
(2) Door Lock Assembly
(3) To Actuator
(4) Door Lock Switch Connector
(5) To Inside Handle
(6) Outside Handle
Installation
To install, follow the removal steps in the reverse order,
noting the following points.
1. Apply chassis grease to the lock assembly and striker
moving surface.
2. Tighten the door lock assembly fixing screws to the
specified torque.
Torque: 7 N´m (0.7kg´m/61 lb in)
3. Check that the door lock operates smoothly.

8H±4SECURITY AND LOCKS
Front Outside Handle and Door Lock Cylinder
Front Outside Handle, Door Lock Cylinder and Associated Parts
632RS006
Legend
(1) Door Trim Panel
(2) Waterproof Sheet
(3) Outside Handle(4) Door Lock Cylinder
(5) Clip
(6) Key Switch (W/Anti-Theft)
Removal
1. Disconnect the battery ground cable.
2. Remove the door trim panel.
3. Remove the waterproof sheet.
Refer to the Window Regulator removal procedure in
Body Structure section.

SECURITY AND LOCKS8H±5
4. Disconnect the locking links (arrow marks positions)
and key switch connector (w/anti-theft) to remove the
outside handle.
632RS005
Legend
(1) Outside Handle
(2) To Door Lock Assembly
(3) Key Switch Connector (W/Anti±Theft)
5. Remove the key Switch.
632RS007
Legend
(1) Outside Handle
(2) Lock Cylinder
(3) Key Switch
6. Remove the fixing clip(1) to remove the door lock
cylinder(2).
632RS009
Installation
To install, follow the removal steps in the reverse order,
noting the following points.
1. Be sure to install the door lock cylinder(2) at a right
angle to the outside handle(1).
632RS008

8H±6SECURITY AND LOCKS
2. For the anti-theft system, be sure to install the push
rod(3) of key switch while pressing it to the door lock
cylinder(5) so that there is no continuity between the
key switch(4) side connector terminal No. D6±2 and
D6±4 (No. D16±2 and D16±4: passenger side).
632RS010
3. Tighten the outside handle and key switch fixing bolts
to the specified torque.
Torque: 9 N´m (0.9kg´m/78 lb in)
4. Check for smooth outside handle and lock cylinder
operation.

SECURITY AND LOCKS8H±7
Rear Door Lock Assembly
Rear Door Lock Assembly and Associated Parts
652RW004
Legend
(1) Door Trim Panel(2) Waterproof Sheet
(3) Door Lock Assembly
Removal
1. Disconnect the battery ground cable.
2. Remove the door trim panel.
3. Remove the waterproof sheet.
Refer to the Window Regulator removal procedure in
Body Structure section.

8H±8SECURITY AND LOCKS
4. Disconnect the locking links (arrow marks positions)
and remove the fixing screws to remove the door lock
assembly.
652RS002
Legend
(1) Outside Handle
(2) To Inside Lock Knob
(3) To Inside Handle
(4) To Actuator
Installation
To install, follow the removal steps in the reverse order,
noting the following points.
1. Apply chassis grease to the lock assembly and striker
moving surface.
2. Tighten the door lock assembly fixing screws to the
specified torque.
Torque: 7 N´m (0.7kg´m/61 lb in)
3. Check that the door lock operates smoothly.

SECURITY AND LOCKS8H±9
Rear Outside Handle
Rear Outside Handle and Associated Parts
652RW003
Legend
(1) Door Trim Panel(2) Waterproof Sheet
(3) Outside Handle
Removal
1. Disconnect the battery ground cable.
2. Remove the door trim panel.
3. Remove the waterproof sheet.
Refer to the Window Regulator removal procedure in
Body Structure section.
4. Disconnect the locking link (arrow mark position) and
remove three fixing bolts to remove the outside
handle.
652RS003

8H±10SECURITY AND LOCKS
Installation
To install, follow the removal steps in the reverse order,
noting the following points.1. Tighten the outside handle fixing bolts to the specified
torque.
Torque: 9 N´m (0.9kg´m/78 lb in)
2. Check that the outside handle operates smoothly.
Rear Door Inside Lock Knob Link
Removal
1. Disconnect the battery ground cable.
2. Remove the door trim panel(3).
3. Remove the waterproof sheet(2).
Refer to the Window Regulator removal procedure in
Body Structure section.
4. Remove the fixing screw(4) and disconnect the
locking link at the door lock assembly to remove the
rear door inside lock knob link(1).
655RW009
Installation
To install, follow the removal steps in the reverse order.

SECURITY AND LOCKS8H±11
Door Inside Lock Knob
Removal
1. Disconnect the battery ground cable.
2. Remove the door trim panel(1).
Refer to the Door Trim Panel removal procedure in
Exterior/Interior Trim section.
3. Turn the door inside lock knob counterclockwise and
then remove the door inside lock knob (2).
632RS011
Installation
To install, follow the removal steps in the reverse order.
Door Inside Handle
Removal and Installation
Refer to the Door Trim Panel removal and installation
procedures in Exterior/Interior Trim section.
635RS008