Dodge RAM TRUCK 1500 1995 Service Manual page 460

8H - i VEHICLE SPEED COITiOL SYSTEM
mm
DIAGNOSIS CHART 1 - DIESEL ENGINE
WARMNG: THE USE OF THE SPIED CONTROL
IS NOT RECOMMENDED WHEN DtfVlNG
c w D n r m s m
NOT
permit
mabNTAINIIG
A C O N I T M SPEED,
SUCH
AS H 1 A W
H A R K OR ON ROADS THAT ARE WINDING,
ICY,
SNOW COVERED
OR SUPPEKY.
START m&IME
ACCELERATE VEHICLE
TO DESIRED SPEED
SPEED CONTROL
ENGAGES WHEN
ENGINE IS STARTED
SPEED CONmOL
ENGAGES WITHOUT
PUSHING TO!
"SET/DECEL" BUTTON
T
FAULTY ELECTRICAL CIRCUS
DEFECTIVE SERVO
NO SPEED CONTROL
WHEN SET/DECEL BUTTON
IS PRESSED AND RELEASED
FUSE BLOWN
"INSUFFICIENT
VACUUM AT SERVO
SPEED CONTROL
THROTTLE CABLE
DISCONNECTED
t
IMPROPER STOP LAMP
SWITCH ADJUSTMENT
FAULTY ELECTRICAL
CIRCUIT*
PUSH ON/CRUISE
BUTTON TO "ON"
POSITION
PUSH AND RELEASE
"SET/DECEL" BUTTON
I
REMOVE FOOT FROM
ACCELERATOR. SPEED
SHOULD BE CONTROI1ED
HUNTING SURGE OR
SPEED VARIATIONS
AT LOW SPEEDS
TORQUE CONVERTER
CLUTCH ROUGHNESS
AMPLIFICATION OF
ENGINE SURGE
£
DEFECTIVE SERVO
DEFECTIVE CABLE
DEFECTIVE
POWERTRAIN
CONTROL MODULE
£
FAULTY
ELECTRICAL CIRCUfr
EXCESSIVE SAG
O N HILLS OR
I N TRAILER TOWING
ENGINE
PERFORMANCE
"INSUFFICIENT
VACUUM AT SERVO
EXCESSIVE LOAD MAY
REQUIRE MANUAL
ASSISTANCE O N HILLS
DEFECTIVE SERVO
SPEED SETTMG AFTER
LO€K4N,TOOHK5H
OR TOO LOW
£
"INSUFFICIENT
VACUUM AT SERVO
DEFECTIVE SERVO
DEFECTIVE CABLE
"REFER TO GROUP 5 - BRAKES
FOR VACUUM PUMP DIAGNOSIS.
DEFECTIVE SERVO
TEST AND ADJUSTMENTS ARE DESCRIBED
IN APPROPRIATE SECTION OF SERVICE
MANUAL
DEFECTIVE ENGINE
SPEED SENSOR
J948H-28