harness DODGE RAM 2001 Service Repair Manual

TERMINOLOGY
This is a list of terms and definitions used in the
wiring diagrams.
LHD .................Left Hand Drive Vehicles
RHD................Right Hand Drive Vehicles
ATX . . Automatic Transmissions-Front Wheel Drive
MTX....Manual Transmissions-Front Wheel Drive
AT ....Automatic Transmissions-Rear Wheel Drive
MT .....Manual Transmissions-Rear Wheel Drive
SOHC...........Single Over Head Cam Engine
DOHC..........Double Over Head Cam Engine
Built-Up-Export........ Vehicles Built For Sale In
Markets Other Than North America
Except-Built-Up-Export . . Vehicles Built For Sale In
North America
WARNINGS - GENERAL
WARNINGSprovide information to prevent per-
sonal injury and vehicle damage. Below is a list of
general warnings that should be followed any time a
vehicle is being serviced.
WARNING:: ALWAYS WEAR SAFETY GLASSES FOR
EYE PROTECTION.
WARNING: USE SAFETY STANDS ANYTIME A PRO-
CEDURE REQUIRES BEING UNDER A VEHICLE.
WARNING: BE SURE THAT THE IGNITION SWITCH
ALWAYS IS IN THE OFF POSITION, UNLESS THE
PROCEDURE REQUIRES IT TO BE ON.
WARNING: SET THE PARKING BRAKE WHEN
WORKING ON ANY VEHICLE. AN AUTOMATIC
TRANSMISSION SHOULD BE IN PARK. A MANUAL
TRANSMISSION SHOULD BE IN NEUTRAL.
WARNING: OPERATE THE ENGINE ONLY IN A
WELL-VENTILATED AREA.
WARNING: KEEP AWAY FROM MOVING PARTS
WHEN THE ENGINE IS RUNNING, ESPECIALLY THE
FAN AND BELTS.
WARNING: TO PREVENT SERIOUS BURNS, AVOID
CONTACT WITH HOT PARTS SUCH AS THE RADIA-
TOR, EXHAUST MANIFOLD(S), TAIL PIPE, CATA-
LYTIC CONVERTER AND MUFFLER.WARNING: DO NOT ALLOW FLAME OR SPARKS
NEAR THE BATTERY. GASES ARE ALWAYS
PRESENT IN AND AROUND THE BATTERY.
WARNING: ALWAYS REMOVE RINGS, WATCHES,
LOOSE HANGING JEWELRY AND LOOSE CLOTH-
ING.
DIAGNOSIS AND TESTING - WIRING HARNESS
TROUBLESHOOTING TOOLS
When diagnosing a problem in an electrical circuit
there are several common tools necessary. These tools
are listed and explained below.
²Jumper Wire - This is a test wire used to con-
nect two points of a circuit. It can be used to bypass
an open in a circuit.
WARNING: NEVER USE A JUMPER WIRE ACROSS
A LOAD, SUCH AS A MOTOR, CONNECTED
BETWEEN A BATTERY FEED AND GROUND.
²Voltmeter - Used to check for voltage on a cir-
cuit. Always connect the black lead to a known good
ground and the red lead to the positive side of the
circuit.
CAUTION: Most of the electrical components used
in today's vehicles are Solid State. When checking
voltages in these circuits, use a meter with a 10 -
megohm or greater impedance rating.
²Ohmmeter - Used to check the resistance
between two points of a circuit. Low or no resistance
in a circuit means good continuity.
CAUTION: Most of the electrical components used
in today's vehicles are Solid State. When checking
resistance in these circuits use a meter with a 10 -
megohm or greater impedance rating. In addition,
make sure the power is disconnected from the cir-
cuit. Circuits that are powered up by the vehicle's
electrical system can cause damage to the equip-
ment and provide false readings.
²Probing Tools - These tools are used for probing
terminals in connectors (Fig. 4)Select the proper size
tool from Special Tool Package 6807, and insert it
into the terminal being tested. Use the other end of
the tool to insert the meter probe.
BR/BE8W-01 WIRING DIAGRAM INFORMATION 8W - 01 - 5
WIRING DIAGRAM INFORMATION (Continued)

INTERMITTENT AND POOR CONNECTIONS
Most intermittent electrical problems are caused
by faulty electrical connections or wiring. It is also
possible for a sticking component or relay to cause a
problem. Before condemning a component or wiring
assembly, check the following items.
²Connectors are fully seated
²Spread terminals, or terminal push out
²Terminals in the wiring assembly are fully
seated into the connector/component and locked into
position
²
Dirt or corrosion on the terminals. Any amount of
corrosion or dirt could cause an intermittent problem
²Damaged connector/component casing exposing
the item to dirt or moisture
²Wire insulation that has rubbed through causing
a short to ground
²Some or all of the wiring strands broken inside
of the insulation
²Wiring broken inside of the insulation
TROUBLESHOOTING WIRING PROBLEMS
When troubleshooting wiring problems there are
six steps which can aid in the procedure. The steps
are listed and explained below. Always check for non-
factory items added to the vehicle before doing any
diagnosis. If the vehicle is equipped with these items,
disconnect them to verify these add-on items are not
the cause of the problem.
(1) Verify the problem.
(2) Verify any related symptoms. Do this by per-
forming operational checks on components that are
in the same circuit. Refer to the wiring diagrams.
(3) Analyze the symptoms. Use the wiring dia-
grams to determine what the circuit is doing, where
the problem most likely is occurring and where the
diagnosis will continue.
(4) Isolate the problem area.
(5) Repair the problem area.
(6) Verify the proper operation. For this step,
check for proper operation of all items on the
repaired circuit. Refer to the wiring diagrams.
STANDARD PROCEDURE - TESTING FOR
VOLTAGE POTENTIAL
(1) Connect the ground lead of a voltmeter to a
known good ground (Fig. 5).
(2) Connect the other lead of the voltmeter to the
selected test point. The vehicle ignition may need to
be turned ON to check voltage. Refer to the appropri-
ate test procedure.
STANDARD PROCEDURE - TESTING FOR
CONTINUITY
(1) Remove the fuse for the circuit being checked
or, disconnect the battery.
(2) Connect one lead of the ohmmeter to one side
of the circuit being tested (Fig. 6)
(3) Connect the other lead to the other end of the
circuit being tested. Low or no resistance means good
continuity.
STANDARD PROCEDURE - TESTING FOR A
SHORT TO GROUND
(1) Remove the fuse and disconnect all items
involved with the fuse.
(2) Connect a test light or a voltmeter across the
terminals of the fuse.
(3) Starting at the fuse block, wiggle the wiring
harness about six to eight inches apart and watch
the voltmeter/test lamp.
(4) If the voltmeter registers voltage or the test
lamp glows, there is a short to ground in that gen-
eral area of the wiring harness.
Fig. 4 PROBING TOOL
1 - SPECIAL TOOL 6801
2 - PROBING END
Fig. 5 TESTING FOR VOLTAGE POTENTIAL
8W - 01 - 6 8W-01 WIRING DIAGRAM INFORMATIONBR/BE
WIRING DIAGRAM INFORMATION (Continued)

(4) Insert the probe end of special tool 6934 into
the back of the connector cavity (Fig. 13).
(5) Grasp the wire and tool 6934, then slowly
remove the wire and terminal from the connector.
(6) Repair or replace the terminal as necessary.
INSTALLATION
(1) Reset the terminal locking tang.
(2) Insert the removed wire in the same cavity on
the repair connector.
(3) Repeat steps for each wire in the connector,
being sure that all wires are fully seated into the
proper cavities. For additional connector pin-out
identification, refer to the wiring diagrams.
(4) Push in the single lock tab on the side of the
connector (Fig. 14).
(5) Connect connector to its mating half/compo-
nent.
(6) Connect battery and test all affected systems.
DIODE
REMOVAL
(1) Disconnect the battery.
(2) Locate the diode in the harness, and remove
the protective covering.
(3) Remove the diode from the harness, pay atten-
tion to the current flow direction (Fig. 15).
INSTALLATION
(1) Remove the insulation from the wires in the
harness. Only remove enough insulation to solder in
the new diode.
(2) Install the new diode in the harness, making
sure current flow is correct. If necessary, refer to the
appropriate wiring diagram for current flow (Fig. 15).
(3) Solder the connection together using rosin core
type solder only.Do not use acid core solder.
(4) Tape the diode to the harness using electrical
tape. Make sure the diode is completely sealed from
the elements.
(5) Re-connect the battery and test affected sys-
tems.
Fig. 13 REMOVING WIRE TERMINAL
1 - SPECIAL TOOL 6934
Fig. 14 SINGLE LOCK TAB
1 - SINGLE LOCK TAB
Fig. 15 DIODE IDENTIFICATION
1 - CURRENT FLOW
2 - BAND AROUND DIODE INDICATES CURRENT FLOW
3 - DIODE AS SHOWN IN THE DIAGRAMS
8W - 01 - 10 8W-01 WIRING DIAGRAM INFORMATIONBR/BE
CONNECTOR - THOMAS AND BETTS (Continued)

TERMINAL
REMOVAL
(1) Disconnect battery.
(2) Disconnect the connector being repaired from
its mating half/component.
(3) Remove the connector locking wedge, if
required (Fig. 16).
(4) Position the connector locking finger away from
the terminal using the proper pick from special tool
kit 6680. Pull on the wire to remove the terminal
from the connector (Fig. 17) (Fig. 18).(5) Cut the wire 6 inches from the back of the con-
nector.
INSTALLATION
(1) Select a wire from the terminal repair assem-
bly that best matches the color wire being repaired.
(2) Cut the repair wire to the proper length and
remove one±half (1/2) inch of insulation.
(3) Splice the repair wire to the wire harness .
(4) Insert the repaired wire into the connector.
(5) Install the connector locking wedge, if required,
and reconnect the connector to its mating half/compo-
nent.
(6) Re-tape the wire harness starting at 1±1/2
inches behind the connector and 2 inches past the
repair.
(7) Connect battery and test all affected systems.Fig. 16 CONNECTOR LOCKING WEDGE TAB
(TYPICAL)
1 - CONNECTOR
2 - CONNECTOR LOCKING WEDGE TAB
Fig. 17 TERMINAL REMOVAL
1 - CONNECTOR
2 - FROM SPECIAL TOOL KIT 6680
Fig. 18 TERMINAL REMOVAL USING SPECIAL TOOL
1 - FROM SPECIAL TOOL KIT 6680
2 - CONNECTOR
BR/BE8W-01 WIRING DIAGRAM INFORMATION 8W - 01 - 11

C129 - (HEADLAMP AND DASH SIDE)
CAV CIRCUIT
1 B113 20RD/VT
2 B114 20WT/VT
3 Z13 12BK
4 B40 12LB
5 K4 20BK/LB
6 K226 20DB/WT
7 L7 16BK/YL
8 L50 18WT/TN
9 L76 12BK/OR
10 L63 16DG/RD
11 L1 18VT/BK
12 A6 12RD/OR
13 L62 16BR/RD
14 A61 16DG/BK (GAS)
C129 - (CHASSIS HARNESS SIDE)
CAV CIRCUIT
1 B113 20RD/VT
2 B114 20WT/VT
3 Z13 12BK
4 B40 12LB
5 K4 20BK/LB
6 K226 20DB/WT
7 L7 16BK/YL
8 L50 18WT/TN
9 L76 12BK/OR
10 L63 16DG/RD
11 L1 18VT/BK
12 A6 12RD/OR
13 L62 16BR/RD
14 A61 16DG/BK
8W - 80 - 10 8W-80 CONNECTOR PIN-OUTSBR/BE

C130 (GAS) - (ENGINE HARNESS SIDE)
CAV CIRCUIT
1 V35 18LG/RD
2 V32 18YL/RD
3 A14 16RD/WT
4 A142 14DG/OR
5-
6-
7 K118 18PK/YL
8 L1 18VT/BK
9-
10 -
11 V40 18WT/PK
12 L10 18BR/LG
13 D1 18VT/BR
14 K51 18DB/YL
15 C13 18DB/OR
16 D20 18DG
17 D2 18WT/BK
18 K4 20BK/LB
19 C90 18LG/WT
20 D21 18PK/DB
21 C3 18DB/BK
22 V37 18RD/LG
23 K226 18DB/WT
24 V36 18TN/RD
25 Y128 18DG/GY (8.0L)
26 T41 22BK/WT (A/T)
26 Z11 20BK/WT (M/T)
27 K31 18BR/WT
28 F18 18LG/BK
29 K30 18PK (A/T)
30 A341 18DG/YL (CALIFORNIA)
31 T16 18RD
32 -
33 G7 18WT/OR
34 T6 18OR/WT (A/T)
35 T125 18DB (A/T)
36 K106 18WT/DG
37 K107 18OR
38 Y193 18WT/LG
39 Z12 18BK/TN
40 -
41 K145 18DG/PK
42 K52 18PK/WT
43 A141 20DG/WT (EXCEPT CALIFORNIA)
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 13

C134 - (HEADLAMP AND DASH SIDE)
CAV CIRCUIT
53 V32 20YL/RD
54 -
55 V18 22YL/DG
56 V40 22WT/PK
57 L62 16BR/RD
58 G85 22OR/BK (DIESEL)
59 G107 20GY
60 -
61 G29 18BK/WT
62 G34 20RD/GY
63 L63 16DG/RD
64 L50 18WT/TN
65 F12 20DB/WT
66 L10 18BR/LG
67 Z3 18BK/OR
68 V10 16BR
69 -
70 -
71 -
72 -
73 -
74 -
C134 - (I/P HARNESS SIDE)
CAV CIRCUIT
1 Y128 18DG/GY
2 Y193 18WT/LG
3 D220 20WT/VT (DIESEL)
4-
5 L3 14RD/OR
6-
7-
8 Z12 18BK/TN
9-
10 D2 20WT/BK
11 D1 20VT/BR
12 -
13 D20 20DG
14 D21 20PK/DB
15 -
16 D1 20VT/BR
17 D2 20WT/BK
18 -
19 L7 16BK/YL
20 A12 16RD/TN
21 T6 22OR/WT
22 L39 22LB
23 F15 22DB
24 -
25 F32 16PK/DB
26 K4 22BK/LB
8W - 80 - 16 8W-80 CONNECTOR PIN-OUTSBR/BE

C134 - (I/P HARNESS SIDE)
CAV CIRCUIT
27 L35 22BR/YL
27 L35 20BR/YL
28 -
29 V37 22RD/LG
30 G11 22WT/LG
31 Z9 16BK/VT (EXCEPT BASE/SLT)
32 X3 20BK/RD
33 -
34 Z5 18BK/DB
35 F33 16PK/RD
36 L4 14VT/WT
37 V4 16RD/YL
38 V49 16RD/BK
39 V3 16BR/WT
40 V5 16DG
41 Z2 16BK/LG
42 Z6 18BK/PK
43 C90 22LG/WT
44 A1 10RD
45 C1 12DG
46 -
47 G50 22RD/DB
48 V30 22DB/RD
49 -
50 A2 14PK/BK
51 A41 14YL
52 -
53 V32 22YL/RD
54 -
55 V18 22YL/DG
56 V40 22WT/PK
57 L62 16BR/RD
58 G85 22OR/BK (DIESEL)
59 G107 22GY
60 -
61 G29 22BK/WT
62 G34 16RD/GY
63 L63 16DG/RD
64 L50 18WT/TN
65 F12 22DB/WT
66 L10 18BR/LG
67 Z3 18BK/OR
68 V10 16BR
69 -
70 -
71 -
72 -
73 -
74 -
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 17

C203 - (I/P HARNESS SIDE)
CAV CIRCUIT
1 X58 18DB/OR
2 X57 18BR/LB
3 F37 16RD/LB
4 F21 14TN
5 M1 22PK
6 X51 18BR/YL
7 X52 18DB/WT
8 M2 22YL
9 G10 22LG/RD
10 M22 22WT (BASE)
10 P30 22OR/RD (HIGHLINE/PREMIUM)
11 L50 18WT/TN
12 X13 16BK/RD (PREMIUM RADIO)
13 M3 22PK/DB
14 C16 22LB/YL
15 G16 22BK/LB (EXCEPT MIDLINE/BASE)
16 P33 22OR/BK (HIGHLINE/PREMIUM)
17 G73 22LG/OR
18 G75 22TN (EXCEPT MIDLINE/BASE)
19 F35 18RD
20 Z9 16BK/VT (EXCEPT BASE/LOWLINE
(HIGHLINE/PREMIUM))
21 X54 18VT
22 X56 18DB/RD
23 X53 18DG
24 X55 18BR/RD
25 P31 22PK/DG (HIGHLINE/PREMIUM)
26 P34 22PK/BK (HIGHLINE/PREMIUM)
C203 - (BODY HARNESS SIDE)
CAV CIRCUIT
1 X58 18DB/OR
2 X57 18BR/LB
3 F37 16RD/LB
4 F21 14TN (POWER LOCK/WINDOW)
5 M1 20PK
6 X51 18BR/YL
7 X52 18DB/WT
8 M2 20YL
9 G10 20LG/RD
10 M22 20WT (BASE)
10 P30 22OR/DG (HIGHLINE/PREMIUM)
11 L50 18WT/TN
12 X13 16BK/RD (PREMIUM RADIO)
13 M3 20PK/DB
14 C16 20LB/YL
15 G16 18BK/LB (HIGHLINE/PREMIUM)
16 P33 20OR/BK (POWER LOCK/WINDOW
(HIGHLINE/PREMIUM))
17 G73 20LG/OR (HIGHLINE/PREMIUM)
18 G75 18TN
19 F35 18RD (POWER LOCK/WINDOW)
20 Z9 16BK/VT (PREMIUM RADIO)
21 X54 18VT
8W - 80 - 18 8W-80 CONNECTOR PIN-OUTSBR/BE

C203 - (BODY HARNESS SIDE)
CAV CIRCUIT
22 X56 18DB/RD
23 X53 18DG
24 X55 18BR/RD
25 P31 22PK/DG (HIGHLINE/PREMIUM)
26 P34 20PK/BK (POWER LOCK/WINDOW
(HIGHLINE/PREMIUM))
C205 - NATURAL (I/P SIDE)
CAV CIRCUIT
1 E2 22OR
2 Z3 22BK/OR
C205 - NATURAL (ASH RECEIVER LAMP SIDE)
CAV CIRCUIT
1 E2 22OR
2 Z3 20BK/OR
C206 (HEATED SEATS) - (BODY SIDE)
CAV CIRCUIT
1 P7 20LB/BK
2 P137 20DG
3 P8 20LB/WT
4 F235 16RD
5 P139 20WT
6 P138 20VT/LG
7 P140 20VT/BK
C206 (HEATED SEATS) - (I/P SIDE)
CAV CIRCUIT
1 P7 20LB/BK
2 P137 20DG
3 P8 20LB/WT
4 F235 16RD
5 P139 20WT
6 P138 20VT/LG
7 P140 20VT/BK
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 19