Chrysler RAM TRUCK 2500 1994 Service Manual page 451

SH - 2 VEHICLE SPEED CONTROL SYSTEM
OAS ENGINE
WARNING: THE USE OF THI SPEED CONTROL
IS NOT RECOMMENDED WHEN DRIVING
C O N D I T I O N S DO NOT PERMIT M A I N T A I N I N G
A C O N S T A N T SPEED, SUCH A S HEAVY
TRAFFIC O R O N M A D S THAT ARE WINDING,
ICY, SNOW COVERED OR SLIPPERY.
START ENGINE
' ' 1
ACCELERATE VEHICLE
T O DESIRED SPEED
SPEED CONTROL
ENGAGES WHEN
ENGINE IS STARTED
I
PUSH ON BUTTON
TO "ON" POSITION.
SPEED
CONTROL
ENGAGES
WITHOUT PUSHING THE
"SET/COAST" BUTTON
i
FAULTY
ELECTRICAL CIRCUIT*
PUSH AND RELEASE
"SET/COAST" BUTTON
FAULTY ELECTRICAL CIRCUIT*
DEFECTIVE SERVO
i
DEFECTIVE SERVO
REMOVE FOOT FROM
ACCELERATOR. SPEED
SHOULD BE CONTROLLED
r
1
f
- NO SPEED CONTROL WHEN J
SET/COAST BUTTON IS
PRESSED AND RELEASED
HUNTING SURGE OR
SPEED VARIATIONS
AT LOW SPEEDS
EXCESSIVE SAG
O N HILLS OR
IN TRAILER T O W I N G
SPIED SETTING AFTER
LOCK-IN, TOO HIGH
OR TOO LOW
f
\
i 1
<
FUSE BLOWN
TORQUE CONVERTER
CLUTCH
ROUGHNESS
ENGINE
PERFORMANCE
V A C U U M LEAK
f
t
N O V A C U U M AT
SERVO
AMPLIFICATION
OF ENGINE
SURGE
V A C U U M
LEAK
DEFECTIVE SERVO
i
f
f
SPEED CONTROL
THROTTLE CABLE
DISCONNECTED
DEFECTIVE SERVO
EXCESSIVE L O A D AAAY
REQUIRE AAANUAL
ASSISTANCE ON HILLS
DEFECTIVE
CABLE
f
IMPROPER STOP LAMP
SWITCH ADJUSTMENT
DEFECTIVE
CABLE
DEFECTIVE V A C U U M
RESERVOIR
(CHECK VALVE)
DEFECTIVE
V A C U U M RESERVOIR
1 f
DEFECTIVE
POWERTRAIN
CONTROL MODULE
FAULTY ELECTRICAL
CIRCUIT*
DEFECTIVE
POWERTRAIN
CONTROL MODULE
DEFECTIVE SERVO
"TESTS AND ADJUSTMENTS ARE DESCRIBED
IN APPROPRIATE SECTION OF SERVICE
MANUAL.
DEFECTIVE V A C U U M
RESERVOIR
J938H-8