1998 DODGE RAM 1500 Radio wiring

INPUT AND OUTPUT CIRCUITS
HARD WIRED INPUTS
The hard wired inputs to the EMIC include the fol-
lowing:
²Brake Lamp Switch Output
²Driver Cylinder Lock Switch Sense
²Driver Door Ajar Switch Sense
²Driver Door Lock Switch MUX - with
Power Locks
²Fused B(+) - Ignition-Off Draw
²Fused B(+) - Power Lock Feed - with Power
Locks
²Fused Ignition Switch Output (Accessory-
Run)
²Fused Ignition Switch Output (Off-Run-
Start)
²Fused Ignition Switch Output (Run-Start)
²Headlamp Dimmer Switch MUX
²Headlamp Switch MUX
²Horn Relay Control
²Key-In Ignition Switch Sense
²Left Rear Door Ajar Switch Sense
²Panel Lamps Dimmer Switch Signal
²Park Brake Switch Sense
²Passenger Door Ajar Switch Sense
²Passenger Door Lock Switch MUX - with
Power Locks
²Radio Control MUX
²Right Rear Door Ajar Switch Sense
²RKE Supply - with RKE
²Seat Belt Switch Sense
²Transmission Range Sensor MUX - with
Auto Trans
²Turn/Hazard Switch MUX
²Washer/Beam Select Switch MUX
²Wiper Switch MUX
Refer to the appropriate wiring information for
additional details.
HARD WIRED OUTPUTS
The hard wired outputs of the EMIC include the
following:
²Accessory Switch Bank Illumination Driver
²BTSI Driver - with Auto Trans
²Cargo Lamp Driver
²Dome/Overhead Lamp Driver
²Driver Door Unlock Driver - with Power
Locks
²Headlamp Switch Illumination Driver
²Heated Seat Switch Indicator Driver - with
Heated Seats
²Heater-A/C Control Illumination Driver
²Left Door Lock Driver - with Power Locks
²Left Rear Door Unlock Driver - with Power
Locks²Map/Glove Box Lamp Driver
²Radio Illumination Driver
²Right Door Lock Driver - with Power Locks
²Right Door Unlock Driver - with Power
Locks
²Transfer Case Switch Illumination Driver -
with Four-Wheel Drive
Refer to the appropriate wiring information for
additional details.
GROUNDS
The EMIC receives and supplies a ground path to
several switches and sensors through the following
hard wired circuits:
²Ground - Illumination (2 Circuits)
²Ground - Power Lock - with Power Locks
²Ground - Signal
²Headlamp Switch Return
²Multi-Function Switch Return
²Transmission Range Sensor Return - with
Auto Trans
Refer to the appropriate wiring information for
additional details.
COMMUNICATION
The EMIC has provisions for the following commu-
nication circuits:
²PCI Data Bus
²RKE Program Serial Data - with RKE
²RKE Transmit Serial Data - with RKE
Refer to the appropriate wiring information for
additional details.
DIAGNOSIS AND TESTING - INSTRUMENT
CLUSTER
If all of the instrument cluster gauges and/or indi-
cators are inoperative, refer to PRELIMINARY
DIAGNOSIS. If an individual gauge or Programma-
ble Communications Interface (PCI) data bus mes-
sage-controlled indicator is inoperative, refer to
ACTUATOR TEST. If an individual hard wired indi-
cator is inoperative, refer to the diagnosis and testing
information for that specific indicator.
Refer to the appropriate wiring information. The
wiring information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.
8J - 10 INSTRUMENT CLUSTERDR
INSTRUMENT CLUSTER (Continued)

ness connector. There should be continuity. If OK, go
to Step 4. If not OK, repair the open sensor return or
signal circuit as required.
(4) Remove the jumper wire from the ambient tem-
perature sensor wire harness connector. Check for
continuity between the sensor return circuit cavity of
the Front Control Module wire harness connector
and a good ground. There should be no continuity. If
OK, go to Step 5. If not OK, repair the shorted sen-
sor return circuit as required.
(5) Check for continuity between the ambient tem-
perature sensor signal circuit cavity of the Front
Control Module wire harness connector and a good
ground. There should be no continuity. If OK, refer to
Diagnosis and Testing - Overhead Consolein
this group. If not OK, repair the shorted ambient
temperature sensor signal circuit as required.
REMOVAL
(1) Open the hood.
(2) Disconnect and isolate the battery negative
cable.
(3) Working on the underside of the hood, remove
screw holding sensor to hood panel.
(4) Disconnect the sensor electrical connector and
remove sensor from vehicle.
INSTALLATION
(1) Connect the sensor electrical connector.
(2) Working on the underside of the hood, install
screw holding sensor to hood panel.
(3) Connect the battery negative cable.
(4) Close the hood.
UNIVERSAL TRANSMITTER
DESCRIPTION
Some DR models are equipped with a universal
transmitter transceiver. The universal transmitter is
integral to the Electronic Vehicle Information Center
(EVIC) and the Compass Mini-Trip Computer
(CMTC), which is located in the overhead console.
The only visible component of the universal transmit-
ter are the three transmitter push buttons centered
between the modules push buttons located just rear-
ward of the display screen in the overhead console.
The three universal transmitter push buttons are
identified with one, two or three light indicators so
that they be easily identified.
Each of the three universal transmitter push but-
tons control an independent radio transmitter chan-
nel. Each of these three channels can be trained to
transmit a different radio frequency signal for the
remote operation of garage door openers, motorized
gate openers, home or office lighting, security sys-tems or just about any other device that can be
equipped with a radio receiver in the 286 to 399
MegaHertz (MHz) frequency range for remote opera-
tion. The universal transmitter is capable of operat-
ing systems using either rolling code or non-rolling
code technology.
The electronics module displays messages and a
small house-shaped icon with one, two or three dots
corresponding to the three transmitter buttons to
indicate the status of the universal transmitter. The
EVIC messages are:
²Clearing Channels- Indicates that all of the
transmitter codes stored in the universal transmitter
have been successfully cleared.
²Channel ªXº Training- Indicates that the uni-
versal transmitter is in its transmitter learning
mode.
²Channel ªXº Trained- Indicates that the uni-
versal transmitter has successfully acquired a new
transmitter code.
²Channel ªXº Transmitting- Indicates that a
trained universal transmitter button has been
depressed and that the universal transmitter is
transmitting.
The universal transmitter cannot be repaired, and
is available for service only as a unit with the EVIC
or CMTC modules. If any part of the universal trans-
mitter is faulty or damaged, the complete EVIC or
CMTC module must be replaced.
OPERATION
The universal transmitter operates on a non-
switched source of battery current so the unit will
remain functional, regardless of the ignition switch
position. For more information on the features, pro-
gramming procedures and operation of the universal
transmitter, see the owner's manual in the vehicle
glove box.
DIAGNOSIS AND TESTING - UNIVERSAL
TRANSMITTER
If the Universal Transmitter is inoperative, but the
Electronic Vehicle Information Center (EVIC) is oper-
ating normally, see the owner's manual in the vehicle
glove box for instructions on training the Transmit-
ter. Retrain the Transmitter with a known good
transmitter as instructed in the owner's manual and
test the Transmitter operation again. If the unit is
still inoperative, test the universal transmitter with
Radio Frequency Detector special tool. If both the
Transmitter and the EVIC module are inoperative,
refer toElectronic Vehicle Information Center
Diagnosis and Testingin this group for further
diagnosis. For complete circuit diagrams, refer to
Wiring Diagrams. (Fig. 8) as described below:
DRMESSAGE SYSTEMS 8M - 11
AMBIENT TEMP SENSOR (Continued)

GEAR/RING GEAR/TONE RING -
INSTALLATION, PINION......3-108,3-137,3-164
GEAR/RING GEAR/TONE RING -
REMOVAL, PINION.........3-106,3-134,3-162
GEARSHIFT CABLE - DIAGNOSIS AND
TESTING....................21-210,21-368
GEARSHIFT CABLE - INSTALLATION....21-211,
21-370
GEARSHIFT CABLE - REMOVAL . . 21-210,21-369
GEARSHIFT CABLE, ADJUSTMENTS.....21-212,
21-370
GEAR/TONE RING - INSTALLATION,
PINION GEAR/RING.........3-108,3-137,3-164
GEAR/TONE RING - REMOVAL, PINION
GEAR/RING...............3-106,3-134,3-162
GEARTRAIN - ASSEMBLY, PLANETARY . . . 21-397
GEARTRAIN - CLEANING, PLANETARY . . . 21-396
GEARTRAIN - DESCRIPTION,
PLANETARY........................21-395
GEARTRAIN - DISASSEMBLY,
PLANETARY........................21-396
GEARTRAIN - INSPECTION, PLANETARY . 21-397
GEARTRAIN - OPERATION, PLANETARY . . 21-396
GEARTRAIN/OUTPUT SHAFT -
ASSEMBLY, PLANETARY..............21-244
GEARTRAIN/OUTPUT SHAFT -
DESCRIPTION, PLANETARY............21-241
GEARTRAIN/OUTPUT SHAFT -
DISASSEMBLY, PLANETARY...........21-242
GEARTRAIN/OUTPUT SHAFT -
INSPECTION, PLANETARY.............21-243
GEARTRAIN/OUTPUT SHAFT -
OPERATION, PLANETARY.............21-241
GENERAL - WARNINGS.............8W-01-7
GENERATOR / CHARGING SYSTEM -
SPECIFICATIONS, TORQUE.............8F-20
GENERATOR - DESCRIPTION...........8F-21
GENERATOR - INSTALLATION...........8F-24
GENERATOR - OPERATION.............8F-21
GENERATOR - REMOVAL...............8F-22
GENERATOR RATINGS, SPECIFICATIONS . . 8F-20
GENII - ASSEMBLY, TRANSFER CASE -
NV241............................21-428
GENII - ASSEMBLY, TRANSFER CASE -
NV244............................21-525
GENII - CLEANING, TRANSFER CASE -
NV241............................21-426
GENII - CLEANING, TRANSFER CASE -
NV244............................21-523
GENII - DESCRIPTION, TRANSFER CASE
- NV241...........................21-415
GENII - DESCRIPTION, TRANSFER CASE
- NV244...........................21-512
GENII - DIAGNOSIS AND TESTING,
TRANSFER CASE - NV241.............21-416
GENII - DISASSEMBLY, TRANSFER CASE
- NV241...........................21-417
GENII - DISASSEMBLY, TRANSFER CASE
- NV244...........................21-514
GENII - INSPECTION, TRANSFER CASE -
NV241............................21-426
GENII - INSPECTION, TRANSFER CASE -
NV244............................21-523
GENII - INSTALLATION, TRANSFER CASE
- NV241...........................21-438
GENII - INSTALLATION, TRANSFER CASE
- NV244...........................21-534
GENII - OPERATION, TRANSFER CASE -
NV241............................21-415
GENII - OPERATION, TRANSFER CASE -
NV244............................21-513
GENII - REMOVAL, TRANSFER CASE -
NV241............................21-417
GENII - REMOVAL, TRANSFER CASE -
NV244............................21-514
GENII - TRANSFER CASE, NV241.......21-438
GENII - TRANSFER CASE, NV244.......21-535
GLASS - DESCRIPTION, HEATED.........8G-1
GLASS - INSTALLATION, BACKLITE VENT . 23-87
GLASS - INSTALLATION, DOOR....23-20,23-30
GLASS - INSTALLATION, SIDE VIEW
MIRROR...........................23-43
GLASS - OPERATION, HEATED
...........8G-1
GLASS - REMOVAL, BACKLITE VENT
.....23-87
GLASS - REMOVAL, DOOR
........23-20,23-30
GLASS - REMOVAL, SIDE VIEW MIRROR
. . 23-42
GLASS RUN CHANNEL - INSTALLATION
. . 23-22,
23-31GLASS RUN CHANNEL - REMOVAL . 23-21,23-30
GLASS RUN WEATHERSTRIP -
INSTALLATION, FRONT DOOR...........23-92
GLASS RUN WEATHERSTRIP -
INSTALLATION, REAR DOOR............23-93
GLASS RUN WEATHERSTRIP -
REMOVAL, FRONT DOOR..............23-92
GLASS RUN WEATHERSTRIP -
REMOVAL, REAR DOOR...............23-93
GLOVE BOX - INSTALLATION...........23-52
GLOVE BOX - REMOVAL...............23-52
GLOVE BOX LAMP/SWITCH -
INSTALLATION.......................8L-28
GLOVE BOX LAMP/SWITCH - REMOVAL . . . 8L-27
GLOVE BOX LATCH - INSTALLATION.....23-52
GLOVE BOX LATCH - REMOVAL.........23-52
GOVERNOR - DESCRIPTION,
ELECTRONIC.......................21-197
GOVERNOR - INSTALLATION,
ELECTRONIC.......................21-200
GOVERNOR - OPERATION, ELECTRONIC . 21-198
GOVERNOR - REMOVAL, ELECTRONIC . . . 21-199
GRAB HANDLE - INSTALLATION,
B-PILLAR...........................23-68
GRAB HANDLE - REMOVAL, B-PILLAR....23-68
GRID LINE AND TERMINAL REPAIR -
STANDARD PROCEDURE...............8G-4
GRILLE - INSTALLATION...............23-40
GRILLE - INSTALLATION, COWL.........23-38
GRILLE - REMOVAL....................23-40
GRILLE - REMOVAL, COWL............23-38
GRILLE FRAME - INSTALLATION.........23-40
GRILLE FRAME - REMOVAL............23-40
GROUND - STANDARD PROCEDURE,
TESTING FOR A SHORT TO..........8W-01-9
GROUND AND SPLICE INFORMATION -
DESCRIPTION, CONNECTOR..........8W-01-7
GROUND ON FUSES POWERING
SEVERAL LOADS - STANDARD
PROCEDURE, TESTING FOR A SHORT
TO.............................8W-01-10
GROUND STRAP - DESCRIPTION, RADIO
NOISE SUPPRESSION..................8A-9
GROUND STRAP - INSTALLATION,
RADIO NOISE SUPPRESSION...........8A-10
GROUND STRAP - OPERATION, RADIO
NOISE SUPPRESSION..................8A-9
GROUND STRAP - REMOVAL, RADIO
NOISE SUPPRESSION..................8A-9
GROUNDS - DESCRIPTION, POWER......8E-10
GUIDE SEALS - DESCRIPTION, VALVE . 9-32,9-38
GUIDES - DESCRIPTION, VALVE....9-107,9-202
GUIDES AND SPRINGS - STANDARD
PROCEDURE, VALVES.................9-256
HALF SHAFT - CAUTION................3-20
HALF SHAFT - DIAGNOSIS AND TESTING . . 3-20
HALF SHAFT - INSTALLATION............3-21
HALF SHAFT - REMOVAL...............3-20
HALF SHAFT - SPECIAL TOOLS..........3-21
HALF SHAFT - SPECIFICATIONS..........3-21
HANDLE - INSTALLATION, A-PILLAR
TRIM/GRAB.........................23-63
HANDLE - INSTALLATION, B-PILLAR
GRAB..............................23-68
HANDLE - INSTALLATION, EXTERIOR
....23-21,
23-30
HANDLE - INSTALLATION, RELEASE
.......5-44
HANDLE - REMOVAL, A-PILLAR
TRIM/GRAB
.........................23-63
HANDLE - REMOVAL, B-PILLAR GRAB
....23-68
HANDLE - REMOVAL, EXTERIOR
. . . 23-20,23-30
HANDLE - REMOVAL, RELEASE
..........5-44
HANDLE ACTUATOR - INSTALLATION,
INSIDE
........................23-22,23-32
HANDLE ACTUATOR - REMOVAL, INSIDE
. 23-22,
23-31
HANDLE/BEZEL - INSTALLATION,
LUMBAR SUPPORT
...................23-82
HANDLE/BEZEL - REMOVAL, LUMBAR
SUPPORT
..........................23-82
HANDLE/LATCH REMOTE -
INSTALLATION, RELEASE
..............23-17
HANDLE/LATCH REMOTE - REMOVAL,
RELEASE
...........................23-17
HANDLING NON-DEPLOYED
SUPPLEMENTAL RESTRAINTS -
STANDARD PROCEDURE
...............8O-6HANDLING TUBING AND FITTINGS -
STANDARD PROCEDURE...............24-45
HANDS FREE MODULE - INSTALLATION....8T-2
HANDS FREE MODULE - REMOVAL.......8T-2
HARNESS - DIAGNOSIS AND TESTING,
WIRING..........................8W-01-7
HAZARD SWITCH - DESCRIPTION.......8L-14
HAZARD SWITCH - OPERATION.........8L-14
HCU (HYDRAULIC CONTROL UNIT) -
DESCRIPTION........................5-49
HCU (HYDRAULIC CONTROL UNIT) -
INSTALLATION........................5-50
HCU (HYDRAULIC CONTROL UNIT) -
OPERATION..........................5-49
HCU (HYDRAULIC CONTROL UNIT) -
REMOVAL...........................5-50
HEAD - CLEANING, CYLINDER.....9-200,9-251
HEAD - DESCRIPTION, CYLINDER . . 9-107,9-249
HEAD - INSPECTION, CYLINDER....9-200,9-252
HEAD - INSTALLATION, CYLINDER.......9-200
HEAD - INSTALLATION, LEFT CYLINDER . . 9-112
HEAD - INSTALLATION, RIGHT
CYLINDER..........................9-113
HEAD - LEFT - INSTALLATION,
CYLINDER...........................9-24
HEAD - LEFT - REMOVAL, CYLINDER......9-22
HEAD - OPERATION, CYLINDER.........9-199
HEAD - REMOVAL, CYLINDER.....9-200,9-249
HEAD - REMOVAL, LEFT CYLINDER......9-108
HEAD - REMOVAL, RIGHT CYLINDER.....9-110
HEAD - RIGHT - INSTALLATION,
CYLINDER...........................9-34
HEAD - RIGHT - REMOVAL, CYLINDER....9-33
HEAD COVER - INSTALLATION,
CYLINDER..........................9-255
HEAD COVER - REMOVAL, CYLINDER....9-255
HEAD COVER(S) - DESCRIPTION,
CYLINDER......................9-122,9-27
HEAD COVER(S) - INSTALLATION,
CYLINDER..................9-201,9-28,9-37
HEAD COVER(S) - REMOVAL, CYLINDER . 9-201,
9-28,9-37
HEAD GASKET - DIAGNOSIS AND
TESTING, CYLINDER...................9-21
HEAD GASKET FAILURE - DIAGNOSIS
AND TESTING, CYLINDER..............9-199
HEAD GASKET SELECTION - STANDARD
PROCEDURE........................9-281
HEADLAMP - INSTALLATION............8L-14
HEADLAMP - REMOVAL...............8L-14
HEADLAMP SWITCH - DESCRIPTION.....8L-14
HEADLAMP SWITCH - INSTALLATION....8L-15
HEADLAMP SWITCH - OPERATION.......8L-14
HEADLAMP SWITCH - REMOVAL........8L-14
HEADLAMP SWITCH BEZEL -
INSTALLATION, INSTRUMENT PANEL.....23-56
HEADLAMP SWITCH BEZEL - REMOVAL,
INSTRUMENT PANEL..................23-56
HEADLAMP UNIT - ADJUSTMENTS......8L-16
HEADLAMP UNIT - INSTALLATION.......8L-15
HEADLAMP UNIT - REMOVAL...........8L-15
HEADLINER - INSTALLATION...........23-68
HEADLINER - REMOVAL...............23-68
HEADREST - INSTALLATION............23-80
HEADREST - REMOVAL................23-80
HEADREST SLEEVE - INSTALLATION.....23-81
HEADREST SLEEVE - REMOVAL.........23-81
HEAT SHIELDS - DESCRIPTION..........11-8
HEAT SHIELDS - INSTALLATION..........11-8
HEAT SHIELDS - REMOVAL.............11-8
HEAT STAKING - STANDARD
PROCEDURE.........................23-3
HEATED GLASS - DESCRIPTION..........8G-1
HEATED GLASS - OPERATION...........8G-1
HEATED MIRRORS - DESCRIPTION.......8G-6
HEATED MIRRORS - OPERATION.........8G-6
HEATED SEAT ELEMENT - DESCRIPTION . . . 8G-9
HEATED SEAT ELEMENT - DIAGNOSIS
AND TESTING.......................8G-10
HEATED SEAT ELEMENT - INSTALLATION . 8G-10
HEATED SEAT ELEMENT - OPERATION....8G-10
HEATED SEAT ELEMENT - REMOVAL
.....8G-10
HEATED SEAT MODULE - DESCRIPTION
....8E-6
HEATED SEAT MODULE - DESCRIPTION
. . 8G-13
HEATED SEAT MODULE - DIAGNOSIS
AND TESTING
........................8E-6
HEATED SEAT MODULE - DIAGNOSIS
AND TESTING
.......................8G-14
DRINDEX 15
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