Isuzu Trooper (1998-2002 year). Manual - part 1107

10A–1

CRUISE CONTROL SYSTEM

CONTROL SYSTEM

CRUISE CONTROL SYSTEM

CONTENTS

Service Precaution

10A–1

. . . . . . . . . . . . . . . . . . . . . . 

General Description

10A–1

. . . . . . . . . . . . . . . . . . . . . 

Diagnosis

10A–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Brake Switch

10A–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Removal

10A–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

10A–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Adjustment

10A–3

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Clutch Switch

10A–3

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Removal and Installation

10A–3

. . . . . . . . . . . . . . . 

Adjustment

10A–3

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Starter Switch

10A–4

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Removal

10A–4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

10A–4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Cruise Control Main Switch

10A–5

. . . . . . . . . . . . . . . 

Removal

10A–5

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

10A–5

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Cruise Control Switch (Combination Switch)

10A–5

Removal and Installation

10A–5

. . . . . . . . . . . . . . . 

Cruise Control Unit

10A–6

. . . . . . . . . . . . . . . . . . . . . . 

Removal

10A–6

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

10A–6

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Cruise Actuator

10A–7

. . . . . . . . . . . . . . . . . . . . . . . . . 

Actuator Cable Diagram (LHD)

10A–7

. . . . . . . . . . 

Actuator Cable Diagram (RHD)

10A–7

. . . . . . . . . . 

Removal

10A–8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

10A–8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Mode Switch

10A–8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Removal and Installation

10A–8

. . . . . . . . . . . . . . . 

Service Precaution

WARNING: IF SO EQUIPPED 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.

General Description

The cruise control keeps the vehicle running at a fixed
speed until a signal canceling this fixed speed is received .
When the main switch “AUTO CRUISE” is turned on with
the vehicle in the running mode, the battery voltage is
applied to the control unit.  When a signal from the control
switch is input to the control unit while the vehicle is in this
state, the cruise control actuator is activated to operate
the system.  Also, while the system is operating, the
“AUTO CRUISE” indicator light in the meter assembly
lights up.

1. SET/COAST Switch Function

1. Set Function: When the SET/COAST switch is

pressed and released with the main switch on, the
speed at which the vehicle is running at that moment
is stored in the memory, and the vehicle automatically
runs at the stored speed.

2. Coast-down Function: When the SET/COAST

switch is kept on while the vehicle in running, the
vehicle decelerates during that time.  The speed at
which vehicle is running when the control switch is
turned off is stored in the memory, and the vehicle
automatically returns to the stored speed.

3. Tap-down Function: When the SET/COAST switch

is turned on and off instantaneously while the vehicle
is running, the vehicle  decelerates a mile for each
on/off operation. The vehicle speed at which the
vehicle was running when the SET/COAST was
turned off last is stored in the memory, and the vehicle
automatically returns to this stored speed.

SECTION

10A–2 CRUISE CONTROL SYSTEM

2. RESUME/ACCEL Switch Function

1. Resume Function: When the RESUME/ACCEL

switch is turned on/off after the system is temporarily
deactivated by pressing the brake or clutch pedal
while the vehicle is running, the vehicle resumes the
speed stored before the system was released, and
the vehicle automatically runs at the stored speed .

2. Accelerate Function: When the RESUME/ACCEL

switch is kept on after the system is released
completely, the vehicle accelerates its speed during
that time.  The vehicle speed at which the vehicle was
running when the switch was turned off is stored in the
memory, and the vehicle automatically returns to this
speed.

3. Tap-up Function: When the RESUME/ACCEL

switch is turned on and off instantaneously while the
vehicle is running, the vehicle decelerates a mile for
each on/off operation.  The vehicle speed at which the
vehicle was running when the switch was turned off
last is stored in the memory, and the vehicle
automatically returns to this stored speed.

3. CANCEL Function

1. Temporary Cancellation: 

D

When the brake pedal is pressed.

D

When the clutch pedal is pressed. (M/T)

D

When the select lever is shifted to any position other
than “D”, “3”, “2” or “L”. (A/T)

D

When the cancel switch is operated.

D

When the vehicle speed exceeds about 20 km/h
over the vehicle speed stored in the memory.

D

Turning the RESUME/ACCEL switch will return the
vehicle to the speed stored in the cruise control
memory.

2. Complete Cancellation:

D

When the starter switch or the main switch is turned
off.

D

When the fail-safe function is activated.

D

When the vehicle speed is about 38.5 km/h.

Diagnosis

Refer to the Cruise Control System Diagnosis in Wiring
System section.

Brake Switch

Removal

1. Disconnect the battery ground cable.
2. Remove the brake switch (1).

D

Disconnect the connector.

D

Loosen the lock nuts of the switch.

D

Remove the switch by turning it.

310RS004

Installation

To install, follow the removal steps in the reverse order,
noting the following points.

1. Check to see if the brake pedal has been returned by

the return spring to the specified position.

2. Turn the switch clockwise until the tip of the threaded

portion of the brake switch contacts the pedal arm.

3. Turn the switch counterclockwise until the space

between the tip of the threaded portion and the pedal
arm is 0.5 to 1.0 mm (0.02-0.04 in.) as shown in the
figure.

310RS003

10A–3

CRUISE CONTROL SYSTEM

Adjustment

1. Check to be sure that the brake pedal (3) has been

completely returned by the return spring.

2. Disconnect the switch connector.
3. Loosen the lock nut (1) of the switch (2).
4. Turn the switch clockwise until the tip of screw portion

of the brake pedal hits the pedal arm.

5. Turn the switch counterclockwise until the clearance

between the tip of the screw portion and the pedal arm
becomes 0.5 to 1.0 mm (0.02-0.04 in).

6. Tighten the lock nut.
7. Connect the switch connector.

310RW006

Clutch Switch

Removal and Installation

Refer to the Clutch Control removal and installation steps
in Clutch section.

Adjustment

1. Check to be sure that the clutch pedal (1) has been

completely returned by the return spring.

2. Disconnect the switch connector.
3. Loosen the lock nut (2) of the switch (3).
4. Push the switch by hand until the push rod cannot be

seen from the tip portion of the switch.

5. Give the switch one reverse rotation.
6. Tighten the lock nut.
7. Connect the switch connector.

203RW002

10A–4 CRUISE CONTROL SYSTEM

Starter Switch

Removal

1. Disconnect the battery ground cable.
2. Remove the front console assembly (1).  Refer to the

Instrument Panel Assembly in Body Structure
section.

3. Remove the lower cluster assembly (2).  Refer to the

Instrument Panel Assembly in Body Structure
section. 

4. Remove the instrument panel driver lower cover

assembly (3).  Refer to the Instrument Panel
Assembly in Body Structure section. 

821RW024

5. Remove seven screws to remove the steering cowl

(6).

6. Disconnect the connector, remove the screw (4) and

then remove the starter switch (5).

431RW005

Installation

To install, follow the removal steps in the reverse order,
noting the following point.

1. When installing the steering cowl (10), be sure to pass

the harnesses through the route as shown in the
figure so that the starter switch harness (7), the
combination switch harness (8) and the inflator
module harness (9) will not catch.

825RW058