Chrysler RAM TRUCK 2500 1994 Service Manual page 381

8D - 24 IGNITION SYSTEMS
•
• I f the lamp flashes 3 times, pauses and flashes 5
more times, a flashing Diagnostic Trouble Code
(DTC) number 35 is indicated.
After any stored DTC information has been ob­
served, the display will end with a flashing DTC
number 5 5 . This will indicate the end of all stored in­
formation.
ERASING T R O U B L E CODES
After the problem has been repaired, the DRB scan
tool must be used to erase a DTC. Refer to the ap­
propriate Powertrain Diagnostic Procedures service
manual for operation of the DRB scan tool.
COMPONENT REMOVAL/INSTALLATION
INDEX
page
Automatic Shut Down (ASD) Relay 24
Camshaft Position Sensor—3.9L V-6 or 5.2/5.9L V-8
Engines 24
Camshaft Position Sensor—8.0L V-10 Engine . . . . 25
Crankshaft Position Sensor—3.9L V-6 or 5.2/5.9L
V-8 Engines 26
Crankshaft Position Sensor—8.0L V-10 Engine . . . 27
Distributor Service . 29
Engine Coolant Temperature Sensor 28
General Information 24
GENERAL INFORMATION
This section of the group, Component Removal/In­
stallation, will discuss the removal and installation
of ignition system components.
For basic ignition system diagnostics and service
adjustments, refer to the Diagnostics/Service Proce­
dures section of this group.
For system operation and component identification,
refer to the Component Identification/System Opera­
tion section of this group.
AUTOMATIC SHUT DOWN (ASD) RELAY
The automatic shut down (ASD) relay is located i n
the power distribution center (PDC). The PDC is lo­
cated next to the battery i n the engine compartment
(Fig. 1). For the location of the relay within the PDC,
refer to PDC cover.
REMOVAL
(1) Disconnect negative battery cable at battery.
(2) Remove the cover at PDC.
(3) Remove the relay from the PDC by pulling
straight up.
INSTALLATION
(1) Check the relay terminals i n the PDC connec­
tor for corrosion or damage before installing relay.
Repair as necessary.
(2) Push the relay into the connector on the PDC.
(3) Connect negative battery cable at battery.
page
Ignition Coil Packs—8.0L V-10 Engine 31
Ignition Coil—3.9L V-6 or 5.2/5.9L V-8 Engines . . . 30
Ignition Control Module—8.0L V-10 Engine . . . . . . 32
Intake Manifold Air Temperature Sensor . . . . . . . . . 32
Manifold Absolute Pressure (MAP) Sensor 33
Oxygen Sensor (02S) 33
Powertrain Control Module (PCM) 33
Spark Plug Secondary Cables 34
Spark Plugs 33
Throttle Position Sensor (TPS) 35
Fig. 1 Power Distribution Center (PDC)
CAMSHAFT POSITION SENSOR—3.9L V-6 OR
5.2/5.9L V-8 ENGINES
The camshaft position sensor is located in the dis­
tributor (Fig. 2).
REMOVAL
Distributor removal is not necessary to remove
camshaft position sensor.
(1) Disconnect negative battery cable at battery.
(2) Remove the air cleaner assembly and connect­
ing air tubes.