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JX
VEHICLE SPEED CONTROL SYSTEM
GENERAL INFORMATION
INTRODUCTION
. . . . . . . . . . . . . . . . . . . . . . . . 1
REDUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 3
POWERTRAIN CONTROL MODULE . . . . . . . . . . 3
SERVO CABLE
. . . . . . . . . . . . . . . . . . . . . . . . . 3
SPEED CONTROL SERVO
SPEED CONTROL SWITCHES
VACUUM RESERVOIR . . . . . . . . . . . . . . . . . . . . 3
VEHICLE SPEED AND DISTANCE . . . . . . . . . . . 3
CHECKING FOR DIAGNOSTIC CODES . . . . . . . 4
ELECTRICAL TESTS AT POWERTRAIN
CONTROL MODULE . . . . . . . . . . . . . . . . . . . . 8
GENERAL INFORMATION
INTRODUCTION
The speed control system is electronically con-
trolled and vacuum operated.The electronic control is
integrated into the powertrain control module,
located on the left side of the engine compartment
next to the air cleaner.The controls are located on the
steering wheel and consist of five switches.The ON
and OFF buttons are located on the left side of the
airbag module.The RESUME/ACCEL, SET/COAST
and CANCEL buttons are located on the right side of
the airbag module (Fig. 1). For identification and
location of the major components (Fig. 2).
The system is designed to operate at speeds above
30 mph (50 km/h).
WARNING:
THE USE OF SPEED CONTROL IS
NOT RECOMMENDED WHEN DRIVING CONDITIONS
DO NOT PERMIT MAINTAINING A CONSTANT
SPEED, SUCH AS IN HEAVY TRAFFIC OR ON
ROADS THAT ARE WINDING, ICY, SNOW COVERED,
OR SLIPPERY.
CONTENTS
. . . . . . . . . . . . . . . . 2
. . . . . . . . . . . . . 2
. . . . . . . . . . . . . . . . . . . . 3
SPEED
RES ACCEL
SET COAST
SWITCHES
CONTROL
CANCEL
VEHICLE SPEED CONTROL SYSTEM
page
CONTROL SET . . . . . . . . . . . . . . . . . . . . . . . . 7
ROAD TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SERVO VACUUM TEST . . . . . . . . . . . . . . . . . . . 7
SPEED CONTROL ELECTRICAL TEST
SPEED CONTROL SWITCH TEST . . . . . . . . . . . 7
STOP LAMP SWITCH TEST . . . . . . . . . . . . . . . . 8
VEHICLE SPEED SENSOR . . . . . . . . . . . . . . . . 9
POWERTRAIN CONTROL MODULE . . . . . . . . . 11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SPEED CONTROL SERVO CABLE . . . . . . . . . . 10
SPEED CONTROL SWITCH . . . . . . . . . . . . . . . 10
STOP LAMP SWITCH . . . . . . . . . . . . . . . . . . . . 10
VACUUM RESERVOIR . . . . . . . . . . . . . . . . . . . 11
Fig. 1 Speed Control Switch
OFF
ON
. . . . . . . . . . . . . . . . . . 9
. . . . . . . . . . . . . . . 11
8H - 1
page
. . . . . . . 5
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