Chrysler 1991 Service Manual Supplement page 19

8H - 2 SPEED CONTROL SYSTEM
WARNING: THE USE O f THE SPEED CONTROL
IS NOT RECOMMENDED WHEN DRIVING
CONDITIONS DO NOT PERMIT MAINTAINING
A CONSTANT SPEED, SUCH AS HEAVY
TRAFFIC OR O N ROADS THAT ARE WINDING,
ICY, SNOW COVERED OR SLIPPERY.
START ENGINE
ACCELERATE VEHICLE
TO DESIRED SPEED
SPEED CONTROL
ENGAGES WHEN
ENGINE IS STARTED
PUSH ON/OFF BUTTON
TO "ON" POSITION.
FAULTY
ELECTRICAL CIRCUIT*
SPEED CONTROL ENGAGES
WITHOUT PUSHING THE
"SET/DECEL" BUTTON
PUSH AND RELEASE
"SET/DECEL" BUTTON
FAULTY ELECTRICAL CIRCUIT*
j :
DEFECTIVE SERVO
DEFECTIVE SERVO
REMOVE FOOT FROM
ACCELERATOR. SPEED
SHOULD BE CONTROLLED
N O SPEED CONTROL WHEN
SET/DECEL BUTTON IS
PRESSED AND RELEASED
HUNTING SURGE OR
SPEED VARIATIONS
AT LOW SPEEDS
FUSE BLOWN
LOCK-UP
TORQUE CONVERTER
ROUGHNESS
NO VACUUM AT
SERVO
AMPLIFICATION
OF ENGINE
SURGE
SPEED CONTROL
THROTTLE CABLE
DISCONNECTED
DEFECTIVE SERVO
IMPROPER STOP LAMP
AND SPEED CONTROL
SWITCH ADJUSTMENT
DEFECTIVE
CABLE
FAULTY ELECTRICAL
CIRCUIT*
DEFECTIVE
ENGINE CONTROLLER
EXCESSIVE S A G
O N HILLS OR
IN TRAILER TOWING
SPEED SETTING AFTER
LOCK-IN, T O O HIGH
OR TOO LOW
ENGINE
PERFORAAANCE
VACUUM LEAK
VACUUM
LEAK
DEFECTIVE SERVO
EXCESSIVE LOAD MAY
REQUIRE MANUAL
ASSISTANCE ON HILLS
DEFECTIVE
CABLE
DEFECTIVE
VACUUM PUMP
DEFECTIVE
VACUUM PUMP
R E F E R TO GROUP 5 - BRAKES
FOR VACUUM PUMP DIAGNOSIS.
DEFECTIVE SERVO
*TESTS AND ADJUSTMENTS ARE DESCRIBED
IN APPROPRIATE SECTION OF SERVICE
MANUAL.
DEFECTIVE
VACUUM PUMP
J918H-27X