Dodge ram truck 3500 1996 Service Manual page 1346

14 -112 FUEL
S Y S T E M
F U E L
I N J E C T I O N S Y S T E M - D I E S E L EUGIME
INDEX
page
GENERAL INFORMATION
INTRODUCTION 112
DESCRIPTION AND OPERATION
AIR CONDITIONING (A/C) CONTROLS—PCM
INPUT 114
AIR CONDITIONING CLUTCH RELAY—PCM
OUTPUT 119
AUTOMATIC SHUTDOWN (ASD) RELAY—PCM
OUTPUT 119
AUTOMATIC SHUTDOWN (ASD) SENSE—PCM
INPUT 114
BATTERY TEMPERATURE SENSOR—PCM
INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
BATTERY VOLTAGE—PCM INPUT . . . . . . 114
BRAKE SWITCH—PCM INPUT . . . . . . . . . . . . . 114
DATA LINK CONNECTOR—PCM INPUT AND
OUTPUT 120
' ENGINE SPEED SENSOR—PCM INPUT . . . . . 1 1 4
GENERATOR FIELD—PCM OUTPUT . . . . . . . . 120
GENERATOR LAMP-PCM OUTPUT . 119
, INTAKE MANIFOLD AIR HEATER RELAYS—
PCM OUTPUT 116
INTAKE MANIFOLD AIR HEATER . . . . . . . . . . . 115
INTAKE MANIFOLD AIR TEMPERATURE
SENSOR—PCM INPUT . . . . . . . . . . . . . 114
MALFUNCTION INDICATOR LAMP—PCM
OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
OVERDRIVE LAMP—PCM OUTPUT 120
OVERDRIVE/OVERRIDE SWITCH-PCM INPUT. 120
PARK/NEUTRAL POSITION SWITCH—PCM
INPUT 117
POWERTRAIN CONTROL MODULE (PCM)—
DIESEL 113
SPEED CONTROL SOLENOIDS—PCM
OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
SPEED CONTROL SWITCH—PCM INPUT . . . . 117
SYSTEM DIAGNOSIS . . . . . . . . . . . . . . . . 113
TACHOMETER—PCM OUTPUT 121
THROTTLE POSITION SENSOR—PCM INPUT . 1 1 7
TORQUE CONVERTOR CLUTCH (TCC)
SOLENOID—PCM OUTPUT . . . . . . . . . . . . . 121
G E N E R A L I N F O R M A T I O N
INTRODUCTION
Various components, relays and switches are oper­
ated by the powertrain control module (PCM). This
section of the group w i l l cover a description
and operation of components controlled by the
page
TRANSMISSION GOVERNOR PRESSURE
SENSOR—PCM INPUT . . . . . . . . . . . . . . 118
TRANSMISSION TEMPERATURE SENSOR—
PCM INPUT . . . . . . . . . . . . . . . . . . . . . . 117
TRANSMISSION TEMPERATURE WARNING
LAMP—PCM OUTPUT . 121
VEHICLE SPEED SENSOR AND DISTANCE—
PCM INPUT . . . . . . . . . . . . . . . . . . 118
WAIT-TO-START LAMP WARNING LAMP—PCM
OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
WATER-IN-FUEL SENSOR—PCM INPUT . . . . . 119
WATER-IN-FUEL WARNING L A M P -
PCM INPUT 119
DIAGNOSIS AND TESTING
AUTOMATIC SHUTDOWN (ASD) RELAY TEST . 123
ENGINE SPEED SENSOR TEST 123
INTAKE MANIFOLD AIR HEATER RELAY TEST . 125
INTAKE MANIFOLD AIR HEATER TEST . . . . . . 124
INTAKE MANIFOLD AIR TEMPERATURE
SENSOR TEST 123
THROTTLE POSITION SENSOR TEST . 126
TRANSMISSION TEMPERATURE SENSOR
TEST . . . 126
VEHICLE SPEED SENSOR . . . . . . . . . . . . . . . 126
VISUAL INSPECTION 121
REMOVAL AND INSTALLATION
AIR CLEANER HOUSING/AIR CLEANER
ELEMENT . . . . . . . . . . . . . . . . . . . 129
AUTOMATIC SHUTDOWN (ASD) RELAY . . . . . 126
ENGINE SPEED SENSOR 127
INTAKE MANIFOLD AIR HEATER ELEMENTS . 130
INTAKE MANIFOLD AIR HEATER RELAYS . . . . 131
INTAKE MANIFOLD AIR TEMPERATURE
SENSOR 130
POWERTRAIN CONTROL MODULE 129
THROTTLE POSITION SENSOR . . . . . . . . . . . 127
VEHICLE SPEED SENSOR 131
WATER-IN-FUEL SENSOR . . . . . 132
SPECIFICATIONS
ENGINE DATA PLATE SPECIFICATIONS 132
TORQUE SPECIFICATIONS—DIESEL . . . . . . . 132
PCM for vehicles equipped w i t h diesel powered
engines.
Diesel fuel injection system components, except for
the intake manifold air heater elements, are not
directly regulated by the PCM.
Refer to the Fuel Delivery System—Diesel Engine
section of this group for fuel components not oper-