relay DODGE RAM 2001 Service Repair Manual

RADIO C2 - BLACK 7 WAY
CAV CIRCUIT FUNCTION
1 X16 22LG ANTENNA RELAY OUTPUT
2 X51 18BR/YL LEFT REAR SPEAKER (+)
3 X52 18DB/WT RIGHT REAR SPEAKER (+)
4 X53 18DG LEFT FRONT DOOR SPEAKER (+)
5 X54 18VT RIGHT FRONT DOOR SPEAKER (+)
6 X57 18BR/LB LEFT REAR SPEAKER (-)
7 X58 18DB/OR RIGHT REAR SPEAKER (-)
RADIO C3-2WAY
CAV CIRCUIT FUNCTION
1 D1 20VT/BR CCD BUS (+)
2 D2 20WT/BK CCD BUS (-)
RADIO CHOKE RELAY - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 X60 16DG/RD FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
2 X13 16BK/RD RADIO CHOKE RELAY OUTPUT
3 X16 22LG ANTENNA RELAY OUTPUT
4 Z9 16BK/VT GROUND
REAR WHEEL SPEED SENSOR (ABS)-2WAY
CAV CIRCUIT FUNCTION
1 B114 20WT/VT REAR WHEEL SPEED SENSOR (-)
2 B113 20RD/VT REAR WHEEL SPEED SENSOR (+)
RIGHT BACK-UP LAMP- GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 Z13 18BK GROUND
2 L1 18VT/BK BACK-UP LAMP FEED
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 71

RIGHT FOG LAMP - WHITE 2 WAY
CAV CIRCUIT FUNCTION
A L34 20RD/OR FUSED B(+)
B L39 20LB FOG LAMP SWITCH OUTPUT
RIGHT FRONT DOOR SPEAKER (PREMIUM) - 10 WAY
CAV CIRCUIT FUNCTION
1 X82 20LB/RD AMPLIFIED HIGH RIGHT FRONT DOOR SPEAKER (+)
2 X80 20LB/BK AMPLIFIED HIGH RIGHT FRONT DOOR SPEAKER (-)
3 X54 18VT RIGHT FRONT SPEAKER (+)
4 X56 18DB/RD RIGHT FRONT SPEAKER (-)
5 X92 18TN/BK AMPLIFIED LOW RIGHT REAR SPEAKER (-)
6 X94 18TN/VT AMPLIFIED LOW RIGHT REAR SPEAKER (+)
7 X13 16BK/RD RADIO CHOKE RELAY OUTPUT
8 Z9 16BK/VT GROUND
9 X52 18DB/WT RIGHT REAR SPEAKER (+)
10 X58 18DB/OR RIGHT REAR SPEAKER (-)
RIGHT FRONT DOOR SPEAKER (STANDARD)-2WAY
CAV CIRCUIT FUNCTION
A X56 20DB/RD RIGHT FRONT SPEAKER (-)
B X54 20VT RIGHT FRONT SPEAKER (+)
RIGHT FRONT FENDER LAMP (DUAL REAR WHEELS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 L7 18BK/YL HEADLAMP SWITCH OUTPUT
2 Z13 18BK GROUND
RIGHT FRONT WHEEL SPEED SENSOR (ABS) - GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 B6 20WT/DB RIGHT FRONT WHEEL SPEED SENSOR (-)
2 B7 20WT RIGHT FRONT WHEEL SPEED SENSOR (+)
8W - 80 - 72 8W-80 CONNECTOR PIN-OUTSBR/BE

RIGHT HEADLAMP - BLACK 3 WAY
CAV CIRCUIT FUNCTION
A L45 18PK/RD FUSED B(+)
B- -
C L33 18LG/BR HIGH BEAM HEADLAMP DRIVER
RIGHT LICENSE LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 L7 18BK/YL PARK LAMP RELAY OUTPUT
2 Z13 18BK GROUND
RIGHT OUTBOARD CLEARANCE LAMP-2WAY
CAV CIRCUIT FUNCTION
1 L7 18BK/YL HEADLAMP SWITCH OUTPUT
2 Z4 18BK GROUND
RIGHT OUTBOARD HEADLAMP-3WAY
CAV CIRCUIT FUNCTION
A L4 16VT/WT (QUAD HEADLAMP) DIMMER SWITCH LOW BEAM OUTPUT
A L44 18VT/RD (EXCEPT QUAD HEAD-
LAMP)FUSED B(+)
B L4 16VT/WT (EXCEPT QUAD HEAD-
LAMP)DIMMER SWITCH LOW BEAM OUTPUT
B L44 18VT/RD (QUAD HEADLAMP) FUSED B(+)
C L3 16RD/OR DIMMER SWITCH HIGH BEAM OUTPUT
RIGHT OUTBOARD IDENTIFICATION LAMP-2WAY
CAV CIRCUIT FUNCTION
1 L7 18BK/YL HEADLAMP SWITCH OUTPUT
2 Z4 18BK GROUND
RIGHT PARK/TURN SIGNAL LAMP - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 Z1 18BK GROUND
2 L7 18BK/YL PARK LAMP RELAY OUTPUT
3 L60 18LG/TN RIGHT TURN SIGNAL
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 73

RIGHT REMOTE RADIO SWITCH-2WAY
CAV CIRCUIT FUNCTION
1 Z2 22BK/LG GROUND
2 X20 22RD/BK RADIO CONTROL MUX
RIGHT SPEED CONTROL SWITCH-2WAY
CAV CIRCUIT FUNCTION
1 K4 22WT SENSOR GROUND
2 V37 22DG/RD SPEED CONTROL SWITCH SIGNAL
RIGHT TAIL/STOP/TURN SIGNAL LAMP - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 Z13 18BK GROUND
2 L7 18BK/YL PARK LAMP RELAY OUTPUT
3 L62 18DG/BR RIGHT TURN SIGNAL
RIGHT TWEETER (PREMIUM)-2WAY
CAV CIRCUIT FUNCTION
1 X80 20LB/BK AMPLIFIED HIGH RIGHT FRONT SPEAKER (-)
2 X82 20LB/RD AMPLIFIED HIGH RIGHT FRONT SPEAKER (+)
RIGHT VISOR/VANITY LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
A M1 20PK FUSED B(+)
B Z4 20BK GROUND
SEAT BELT SWITCH (CLUB CAB)-2WAY
CAV CIRCUIT FUNCTION
1 Z2 20BK/LG GROUND
2 G10 22LG/RD (HEATED SEATS) SEAT BELT SWITCH SENSE
2 G10 20LG/RD (MANUAL NON-HEATED
SEATS)SEAT BELT SWITCH SENSE
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 75

TRAILER TOW CONNECTOR - 10 WAY
CAV CIRCUIT FUNCTION
1- -
2 L62 16BR/RD RIGHT TURN SIGNAL
3 L1 18VT/BK BACK-UP LAMP FEED
4 A6 14RD/OR FUSED B(+)
5 L76 14BK/OR TRAILER TOW RELAY OUTPUT
6- -
7 B40 14LB TRAILER TOW BRAKE B(+)
8 Z13 14BK GROUND
9 Z13 14BK GROUND
10 L63 16DG/RD LEFT TURN SIGNAL
TRANSMISSION SOLENOID ASSEMBLY-8WAY
CAV CIRCUIT FUNCTION
1 T16 18RD TRANSMISSION CONTROL RELAY OUTPUT
2 K7 18OR 5V SUPPLY
3 K4 18BK/LB SENSOR GROUND
4 T25 18LG/WT GOVERNOR PRESSURE SENSOR SIGNAL
5 K88 18VT/WT GOVERNOR PRESSURE SOLENOID CONTROL
6 T60 18BR 3-4 SHIFT SOLENOID CONTROL
7 K54 18OR/BK TORQUE CONVERTER CLUTCH SOLENOID CONTROL
8 T54 18VT TRANSMISSION TEMPERATURE SENSOR SIGNAL
UNDERHOOD LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z1 20BK GROUND
2 M1 20PK FUSED B(+)
WASHER FLUID LEVEL SWITCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G29 18BK/WT WASHER FLUID SWITCH SENSE
2 Z1 18BK GROUND
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 77

Connector Name/Number Color Location Fig.
G100 Left Fender Side Shield 16
G101 Left Fender Side Shield 16
G102 Left Fender Side Shield (RWAL
Ground)N/S
G103 Near T/O for Wiper Motor 14
G105 Front of Engine (Engine Ground) 4,5,6,9
G107 (Diesel) Left Rear of Engine 10
G113 (Diesel) Primary Battery Engine Ground N/S
G114 Battery Engine Ground N/S
G115 (Diesel) Primary Battery Body Ground N/S
G116 Battery Frame Ground N/S
G117 (Diesel) Auxilary Battery Engine Ground N/S
G118 (Diesel) Primary Frame Ground N/S
G120 (Diesel) Auxilary Battery Body Ground N/S
G200 Left Cowl 24
G201 Instrument Panel Right Center
Support23,25
G300 Left Lower Cowl 20
G301 Below Left Rear Speaker 18
G302 At Overhead Console 20
Generator BK Front of Engine 7,8
Glove Box Lamp At Glove Box 23
Headlamp Switch C1 BK Left Side of Instrument Panel 23,26
Headlamp Switch C2 Left Side of Instrument Panel 23,26
Heated Mirror Switch Center of Instrument Panel 25
High Note Horn BK Front Bumper Right Support 17
Idle Air Control Motor BK On Throttle Body 9
Ignition Coil GY Right Front of Engine 4,5,9
Ignition Coil 4 Pack BK Right Side of Engine 9
Ignition Coil 6 Pack BK Right Side of Engine 9
Ignition Switch C1 Steering Column 24
Ignition Switch C2 Steering Column 24
Instrument Cluster C1 Rear of Instrument Cluster 23
Instrument Cluster C2 Rear of Instrument Cluster 23
Intake Air Heater Relay Left Fender Side Shield 16
Intake Air Temperature Sensor (Diesel) Left Rear of Engine 10
Intake Air Temperature Sensor (Gas) GY On Intake Manifold 4,5,6
Joint Connector No. 1 In Power Distribution Center N/S
Joint Connector No. 2 In Power Distribution Center N/S
Joint Connector No. 3 Front Bumper Right support 17
Joint Connector No. 4 Left Front Engine Compartment 16
Joint Connector No. 5 NAT Left Side of Instrument Panel 24
Joint Connector No. 6 NAT Left Side of Instrument Pane 24
8W - 90 - 4 8W-90 CONNECTOR/GROUND LOCATIONSBR/BE
CONNECTOR/GROUND LOCATIONS (Continued)

Connector Name/Number Color Location Fig.
Oxygen Sensor 1/1 Left Bank Up Left Exhaust Manifold Downpipe 13
Oxygen Sensor 1/1 Upstream Catalytic Converter Inlet Side 13
Oxygen Sensor 1/2 Downstream Catalytic Converter Outlet Side 13
Oxygen Sensor 1/2 Left Bank Down Catalytic Converter Outlet Side 13
Oxygen Sensor 1/2 Pre-catalyst Catalytic Converter Inlet Side 13
Oxygen Sensor 1/3 Post Catalyst Catalytic Converter Outlet Side 13
Oxygen Sensor 1/3 Post Catalyst Post Catalyst 13
Oxygen Sensor 2/1 Right Bank Up Right Exhaust Manifold Downpipe 13
Oxygen Sensor 2/2 Right Bank Down Catalytic Converter Outlet Side 13
Park/Neutral Position Switch BK Left Side of Transmission 13
Passenger Airbag At Glove Box 23,26
Passenger Airbag On/Off Switch C1 Lower Right Side of Instrument
Panel23
Passenger Airbag On/Off Switch C2 Lower Right Side of Instrument
Panel23
Passenger Door Arm/Disarm Switch LTGY In Door 19
Passenger Door Jamb Switch NAT In Door 19
Passenger Door Lock Motor BK In Door 19
Passenger Door Window/Lock Switch In Door 19
Passenger Heated Seat Switch BL Center of Instrument Panel N/S
Passenger Heated Seat Module Under Seat N/S
Passenger Lumbar Motor Under Seat N/S
Passenger Power Seat Front Vertical Motor Under Seat N/S
Passenger Power Seat Horizontal Motor Under Seat N/S
Passenger Power Seat Rear Vertical Motor Under Seat N/S
Passenger Power Seat Switch At Seat N/S
Passenger Power Window Motor In Door N/S
Power Seat Heater Control Module Under Seat N/S
Power Mirror Switch Driver Door 19
Power Outlet BK Center of I.P. 25
Powertrain Control Module C1 Right Rear Engine Compartment 1,2
Powertrain Control Module C2 Right Rear Engine Compartment 1,2
Powertrain Control Module C3 Right Rear Engine Compartment 1,2
Radio Choke Relay BK Instrument Panel Center support 23,25
Radio C1 GY Rear of Radio 25
Radio C2 BK Rear of Radio 25
Radio C3 BK Instrument Panel Center support 25
Rear Wheel Speed Sensor BK Left Frame Rail, Near Fuel Tank 21,22
Right Back-Up Lamp BK Rear of Lamp N/S
Right Fog Lamp BK Rear of Fog Lamp N/S
Right Front Door Speaker(Premium BK In Door 19
Right Front Door Speaker(Standard BK In Door 19
Right Front Fender Lamp On Fender 21
8W - 90 - 6 8W-90 CONNECTOR/GROUND LOCATIONSBR/BE
CONNECTOR/GROUND LOCATIONS (Continued)

Splice Number Location Fig.
S123 (V10) Engine Harness, Near T/O to Fuel Injector No. 3 4
S124 (V6, V8) Engine Harness, Top of Transmission 5
S124 (V10) Engine Harness, In T/O to Transmission N/S
S126 (V6, V8) Engine Harness, Near T/O to Fuel Injector No. 1 3
S126 (V10) Engine Harness, Near T/O to Engine Ground 4, 6
S126 (Diesel) Transmission Harness, Near T/O to Powertrain Control Module 2
S127 (V6, V8) Engine Harness, on Top of Transmission 6, 5
S127 (V10) Engine Harness, Near T/O to Transmission 6
S127 (Diesel) Transmission Harness, Near T/O to A/C Low Pressure Switch 2
S128 (Diesel) Transmission Harness, Near T/O to Power Distribution Center 2
S130(V6, V8) Engine Harness, Near T/O to Oil Pressure Sensor 3
S131 (V10) Engine Harness, Rear of Engine 4
S134 Fog Lamp Harness, In T/O to Right Fog Lamp N/S
S136 Fog Lamp Harness, In T/O to Right Fog Lamp N/S
S141 Headlamp and Dash Harness, Near T/O to Joint Connector No. 3 8
S143 Headlamp and Dash Harness, Near T/O to Power Distribution Center 7
S144 Headlamp and Dash Harness, Near T/O to Joint Connector No. 3 8
S160 (Diesel) Engine Harness, Near Fuel Transfer Pump N/S
S161 (Diesel) Transmission Harness, In T/O to Power Distribution Center 2
S164 (Diesel) Engine Harness, Near Fuel Transfer Pump N/S
S165 (Diesel) Engine Harness, Near Engine Control Module N/S
S166 (Diesel) Engine Harness, Near Engine Control Module N/S
S167 (Diesel) Engine Harness, Near Fuel Transfer Pump N/S
S168 (Diesel) Engine Harness, Near T/O to Engine Coolant Temoerature Sensor N/S
S170 (Diesel) Engine Harness, In T/O to Engine Control Module N/S
S171 Transmission Harness, In T/O to Power Distribution Cente 2
S172 (Diesel) Transmission Harness, Near T/O to A/C Low Pressure Switch 2
S173 (Diesel) Transmission Harness, Near T/O to A/C Low Pressure Switch 2
S174 (Diesel) Transmission Harness, In T/O to Power Distribution Center 2
S175 Transmission Harness, In T/O to Power Distribution Center 2
S176 Headlamp and Dash Harness, In Power Distribution Center 7
S177 Headlamp and Dash Harness, In T/O to Daytime Running Lamps Module 7
S179 Transmission Harness, In T/O to Power Distribution Center 2
S180 Headlamp and Dash Harness, Near Intake Air Heater Relay 8
S181 Headlamp and Dash Harness, Near Intake Air Heater Relay 8
S182 Headlamp and Dash Harness, In T/O to Daytime Running Lamps Module 7
S183 Headlamp and Dash Harness, In Power Distribution Center 7
S184 (Diesel) Engine Harnes, in T/O to Engine Control Module N/S
S202 Instrument Panel Harness, Near Overdrive Switch 12
S203 Instrument Panel Harness, Near Overdrive Switch 12
S204 instrument Panel Harness, In T/O to Cup Holder Lamp 12
S207 Instrument Panel Harness, Near Blower Motor 12
S209 Steering Wheel Harness, Near Remote Radio Switch N/S
S210 Steering Wheel Harness, Near Remote Radio Switch N/S
S300 Body Harness, Left Side Instrument Panel 10
8W - 95 - 2 8W-95 SPLICE LOCATIONSBR/BE
SPLICE LOCATIONS (Continued)

8W-97 POWER DISTRIBUTION
TABLE OF CONTENTS
page page
POWER DISTRIBUTION
DESCRIPTION............................1
OPERATION.............................1
SPECIAL TOOLS..........................2
CIGAR LIGHTER OUTLET
DESCRIPTION............................2
OPERATION.............................2
DIAGNOSIS AND TESTING..................2
CIGAR LIGHTER........................2
REMOVAL...............................3
INSTALLATION............................3
CIRCUIT BREAKER
DESCRIPTION............................4
DIAGNOSIS AND TESTING..................4
CIRCUIT BREAKER......................4
GENERATOR CARTRIDGE FUSE
DESCRIPTION............................4
OPERATION.............................4
REMOVAL...............................4
INSTALLATION............................4
IOD FUSE
DESCRIPTION............................4OPERATION.............................5
REMOVAL...............................5
INSTALLATION............................5
JUNCTION BLOCK
DESCRIPTION............................6
OPERATION.............................6
REMOVAL...............................6
INSTALLATION............................7
POWER DISTRIBUTION CENTER
DESCRIPTION............................7
OPERATION.............................8
REMOVAL...............................8
INSTALLATION............................8
POWER OUTLET
DESCRIPTION............................9
OPERATION.............................10
DIAGNOSIS AND TESTING.................10
POWER OUTLET.......................10
REMOVAL..............................10
INSTALLATION...........................11
POWER DISTRIBUTION
DESCRIPTION
This group covers the various standard and
optional power distribution components used on this
model. The power distribution system for this vehicle
consists of the following components:
²Power Distribution Center (PDC)
²Junction Block (JB).
The power distribution system also incorporates
various types of circuit control and protection fea-
tures, including:
²Automatic resetting circuit breakers
²Blade-type fuses
²Cartridge fuses
²Circuit splice blocks
²Flashers
²Relays.
Following are general descriptions of the major
components in the power distribution system. See the
owner's manual in the vehicle glove box for more
information on the features and use of all of thepower distribution system components. Refer to the
index in this service manual for the location of com-
plete circuit diagrams for the various power distribu-
tion system components.
OPERATION
The power distribution system for this vehicle is
designed to provide safe, reliable, and centralized dis-
tribution points for the electrical current required to
operate all of the many standard and optional facto-
ry-installed electrical and electronic powertrain,
chassis, safety, security, comfort and convenience sys-
tems. At the same time, the power distribution sys-
tem was designed to provide ready access to these
electrical distribution points for the vehicle techni-
cian to use when conducting diagnosis and repair of
faulty circuits. The power distribution system can
also prove useful for the sourcing of additional elec-
trical circuits that may be required to provide the
electrical current needed to operate many accessories
that the vehicle owner may choose to have installed
in the aftermarket.
BR/BE8W-97 POWER DISTRIBUTION 8W - 97 - 1

(1) Turn the ignition switch to the Off position.
(2) To install the IOD fuse, use a thumb to press
the IOD fuse holder unit in fuse cavity 12 firmly into
the JB.
(3) Install the fuse access panel by snapping it
onto the left outboard end of the instrument panel.
JUNCTION BLOCK
DESCRIPTION
An electrical Junction Block (JB) is concealed
behind the left outboard end of the instrument panel
cover (Fig. 5). The JB combines the functions previ-
ously provided by a separate fuseblock module and
relay center, serves to simplify and centralize numer-
ous electrical components, and to distribute electrical
current to many of the accessory systems in the vehi-
cle. It also eliminates the need for numerous splice
connections and serves in place of a bulkhead connec-
tor between many of the engine compartment, instru-
ment panel, and body wire harnesses. The JB houses
up to nineteen blade-type fuses (two standard-type
and seventeen mini-type), up to two blade-type auto-
matic resetting circuit breakers, the electronic combi-
nation turn signal and hazard warning flasher, and
one International Standards Organization (ISO)
micro-relay.The molded plastic JB housing has integral mount-
ing brackets that are secured with two screws to the
left instrument panel end bracket. The left end of the
instrument panel cover has a snap-fit fuse access
panel that can be removed for service of the JB. A
fuse puller and spare fuse holders are located on the
back of the fuse access cover, as well as an adhesive-
backed fuse layout map to ensure proper fuse identi-
fication.
The JB unit cannot be repaired and is only ser-
viced as an assembly. If any internal circuit or the JB
housing is faulty or damaged, the entire JB unit
must be replaced.
OPERATION
All of the circuits entering and leaving the JB do
so through up to nine wire harness connectors, which
are connected to the JB through integral connector
receptacles molded into the JB housing. Internal con-
nection of all of the JB circuits is accomplished by an
intricate combination of hard wiring and bus bars.
Refer toJunction Blockin the index of this service
manual for the location of complete JB circuit dia-
grams.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
Fig. 4 Ignition-Off Draw Fuse
1 - JUNCTION BLOCK
2 - IGNITION-OFF DRAW FUSE AND HOLDER
3 - LEFT INSTRUMENT PANEL END BRACKET
Fig. 5 Junction Block Location
1 - JUNCTION BLOCK
2 - FUSE ACCESS PANEL
8W - 97 - 6 8W-97 POWER DISTRIBUTIONBR/BE
IOD FUSE (Continued)