2003 CHRYSLER VOYAGER C3 voltage

STANDARD PROCEDURE - TESTING OF
VOLTAGE POTENTIAL
(1) Connect the ground lead of a voltmeter to a
known good ground (Fig. 7).
(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. 8).
(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. 7 TESTING FOR VOLTAGE POTENTIAL
Fig. 8 TESTING FOR CONTINUITY
1 - FUSE REMOVED FROM CIRCUIT
RS8W-01 WIRING DIAGRAM INFORMATION8W-01-9
WIRING DIAGRAM INFORMATION (Continued)
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STANDARD PROCEDURE - TESTING FOR A
SHORT TO GROUND ON FUSES POWERING
SEVERAL LOADS
(1) Refer to the wiring diagrams and disconnect or
isolate all items on the suspected fused circuits.
(2) Replace the blown fuse.
(3) Supply power to the fuse by turning ON the
ignition switch or re-connecting the battery.
(4) Start connecting or energizing the items in the
fuse circuit one at a time. When the fuse blows the
circuit with the short to ground has been isolated.
STANDARD PROCEDURE - TESTING FOR A
VOLTAGE DROP
(1) Connect the positive lead of the voltmeter to
the side of the circuit closest to the battery (Fig. 9).
(2) Connect the other lead of the voltmeter to the
other side of the switch, component or circuit.
(3) Operate the item.
(4) The voltmeter will show the difference in volt-
age between the two points.
SPECIAL TOOLS
WIRING/TERMINAL
Fig. 9 TESTING FOR VOLTAGE DROP
PROBING TOOL PACKAGE 6807
TERMINAL PICK TOOL SET 6680
TERMINAL REMOVING TOOLS 6932 AND 8638
TERMINAL REMOVING TOOL 6934
8W - 01 - 10 8W-01 WIRING DIAGRAM INFORMATIONRS
WIRING DIAGRAM INFORMATION (Continued)
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A/C COMPRESSOR CLUTCH - LT. GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 C3 20DB/YL (2.4L) A/C COMPRESSOR CLUTCH RELAY OUTPUT
1 C3 18DB/YL (3.3L/3.8L/DIESEL) A/C COMPRESSOR CLUTCH RELAY OUTPUT
2 Z153 18BK/GY GROUND
A/C PRESSURE SENSOR - GRAY 4 WAY
CAV CIRCUIT FUNCTION
1 K900 18DB/DG (GAS) SENSOR GROUND
1 C918 20BK/LB (DIESEL) A/C PRESSURE SENSOR GROUND
2 F855 20PK/YL (2.4L) 5 VOLT SUPPLY
2 F851 20LB/PK (DIESEL) SENSOR REFERENCE VOLTAGE B
2 F855 18PK/YL (3.3L/3.8L) 5 VOLT SUPPLY
3 C18 18LB/BR (3.3L/3.8L) A/C PRESSURE SENSOR SIGNAL
3 C18 20LB/BR (DIESEL) A/C PRESSURE SENSOR SIGNAL
3 C18 18LB/BR (2.4L) A/C PRESSURE SIGNAL
4- -
A/C-HEATER CONTROL C1 (MTC) - BLACK/RED 20 WAY
CAV CIRCUIT FUNCTION
1 Z24 18BK/OR GROUND
2 C121 20DB/DG (LHD) SENSOR GROUND
2 C121 22DB/DG (RHD) SENSOR GROUND
3 C22 20LB/WT (3 ZONE) REAR TEMPERATURE FEEDBACK SIGNAL
4- -
5 F850 20LB/PK (3 ZONE) 5 VOLT SUPPLY
6- -
7 C32 22DB/TN RECIRCULATION DOOR DRIVER (A)
8 C54 22LB/YL (3 ZONE) REAR BLEND DOOR DRIVER
9 C34 22DB/LB COMMON DOOR DRIVER (B)
10 D25 20WT/VT PCI BUS
11 - -
12 C121 20DB/DG (3 ZONE) REAR TEMPERATURE RETURN
13 F504 20GY/PK IGNITION SWITCH OUTPUT (RUN)
14 E12 20OR/GY PANEL LAMPS DRIVER
15 C21 22LB EVAPORATOR TEMPERATURE SENSOR SIGNAL
16 C33 22LB/BR PASSENGER BLEND DOOR DRIVER (A)
17 C61 22DB/LG (EXCEPT BASE) DRIVER BLEND DOOR DRIVER (A)
18 C35 22LB/LG MODE DOOR DRIVER (A)
19 C53 22LB (3 ZONE) REAR MODE DOOR DRIVER
20 C154 20LB/OR (3 ZONE) REAR COMMON DOOR DRIVER
8W - 80 - 6 8W-80 CONNECTOR PIN-OUTSRS
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BODY CONTROL MODULE C5 - BLACK/BLACK 34 WAY
CAV CIRCUIT FUNCTION
1 L91 22WT/DB HAZARD SWITCH SENSE
2- -
3- -
4- -
5- -
6- -
7- -
8- -
9- -
10 G20 20VT/BR IGNITION SWITCH SENSE
11 - -
12 - -
13 - -
14 - -
15 - -
16 G926 22VT/WT REAR WIPER SWITCH MUX RETURN
17 L900 22WT/YL HEADLAMP SWITCH MUX RETURN
18 L307 22WT/BR (RHD) HEADLAMP SWITCH MUX
18 L307 20WT/BR (LHD) HEADLAMP SWITCH MUX
19 - -
20 - -
21 - -
22 - -
23 - -
24 - -
25 L36 20WT/DB (EXPORT) REAR FOG LAMP INDICATOR DRIVER
26 X20 22GY/WT RADIO CONTROL MUX
27 G194 22VT/LG HIGH BEAM/FRONT WASHER SWITCH MUX
28 W26 22BR/DB REAR WIPER SWITCH MUX
29 W52 22BR/YL FRONT WIPER SWITCH MUX
30 E2 22OR/BR PANEL LAMPS DIMMER SIGNAL
31 L305 20WT/LB TURN SIGNAL SWITCH MUX
32 - -
33 - -
34 L39 22WT/OR FRONT FOG LAMP INDICATOR DRIVER
BOOST PRESSURE SENSOR (DIESEL)-4WAY
CAV CIRCUIT FUNCTION
1 K121 20DB BOOST PRESSURE SENSOR GROUND
2 K21 20DB/LG INTAKE AIR TEMPERATURE SENSOR SIGNAL
3 F851 18LB/PK SENSOR REFERENCE VOLTAGE B
4 K37 20DB/YL BOOST PRESSURE SENSOR SIGNAL
RS8W-80 CONNECTOR PIN-OUTS8W-80-15
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ENGINE CONTROL MODULE C1 (DIESEL) - BLACK 81 WAY - 81 WAY
CAV CIRCUIT FUNCTION
1 Z130 14BK/BR GROUND
2 Z131 14BK/DG GROUND
3 K20 14BR/GY GENERATOR FIELD CONTROL
4 K342 14BR/WT ECM/PCM RELAY OUTPUT
5 K342 14BR/WT ECM/PCM RELAY OUTPUT
6- -
7 D25 20WT/VT PCI BUS
8 K944 20BK/GY CAMSHAFT POSITION SENSOR SHIELD GROUND
9 K44 20DB/GY CAMSHAFT POSITION SENSOR SIGNAL
10 - -
11 K37 20DB/YL BOOST PRESSURE SENSOR SIGNAL
12 K55 20DB/OR MASS AIR FLOW SENSOR SIGNAL
13 K78 20GY FUEL PRESSURE SENSOR SIGNAL
14 - -
15 K22 20OR/DB ACCELERATOR PEDAL POSITION SENSOR SIGNAL
16 K80 20DB/TN FUEL PRESSURE SENSOR GROUND
17 - -
18 - -
19 K342 20BR/WT ECM/PCM RELAY OUTPUT
20 Z138 20BK/OR GROUND
21 K900 20DB/DG SENSOR GROUND
22 F202 20PK/GY FUSED IGNITION SWITCH OUTPUT (RUN-START)
23 F851 20LB/PK SENSOR REFERENCE VOLTAGE B
24 K3 20BR/OR CRANKSHAFT POSITION SENSOR SIGNAL NO. 1
25 - -
26 - -
27 - -
28 - -
29 - -
30 G6 20VT/GY ENGINE OIL PRESSURE SENSOR SIGNAL
31 F853 20LG/PK WATER IN FUEL SENSOR SIGNAL
32 K25 20BR/TN BATTERY TEMPERATURE SENSOR SIGNAL
33 - -
34 K4 20BK/LB LOW IDLE POSITION SWITCH GROUND
35 K853 20DB/BR ACCELERATOR PEDAL POSITION SENSOR 5 VOLT
SUPPLY
36 C18 20LB/BR A/C PRESSURE SENSOR SIGNAL
37 - -
38 V37 20VT/TN SPEED CONTROL SWITCH SIGNAL
39 - -
40 K2 20TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
41 K21 20DB/LG INTAKE AIR TEMPERATURE SENSOR SIGNAL
42 Z122 18WT GROUND (DRAIN)
43 K24 20BR/LB CRANKSHAFT POSITION SENSOR SIGNAL NO. 2
44 - -
45 - -
46 - -
47 L50 20WT/TN PRIMARY BRAKE SWITCH SIGNAL
48 B29 20DG/WT SECONDARY BRAKE SWITCH SIGNAL
49 T751 20YL FUSED IGNITION SWITCH OUTPUT (START)
50 F855 20PK/YL SENSOR REFERENCE VOLTAGE A
51 - -
52 K121 20DB BOOST PRESSURE SENSOR GROUND
53 - -
RS8W-80 CONNECTOR PIN-OUTS8W-80-63
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ENGINE OIL PRESSURE SENSOR (DIESEL) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 F855 20PK/YL SENSOR REFERENCE VOLTAGE A
2 G6 20VT/GY ENGINE OIL PRESSURE SENSOR SIGNAL
3 K936 20BR/YL ENGINE OIL PRESSURE SENSOR GROUND
ENGINE OIL PRESSURE SWITCH (GAS) - LT. GREEN 2 WAY
CAV CIRCUIT FUNCTION
1 G6 16VT/GY (3.3L/3.8L) ENGINE OIL PRESSURE SWITCH SENSE
1 G6 16VT/GY (2.4L) OIL PRESSURE SIGNAL
2- -
EVAP/PURGE SOLENOID (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K52 18DB/WT (3.3L/3.8L) EVAPORATIVE EMISSION SOLENOID CONTROL
1 K52 18DB/WT (2.4L) EVAP PURGE CONTROL
2 K70 18DB/BR (2.4L) EVAP PURGE SIGNAL
2 K70 18DB/BR (3.3L/3.8L) EVAPORATIVE EMISSION SOLENOID SENSE
EVAPORATOR TEMPERATURE SENSOR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 C21 20DB/LG EVAPORATOR TEMPERATURE SENSOR SIGNAL
2 C121 20DB/DG SENSOR GROUND
8W - 80 - 66 8W-80 CONNECTOR PIN-OUTSRS
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MANIFOLD ABSOLUTE PRESSURE SENSOR (GAS) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K1 18VT/BR (3.3L/3.8L) MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL
1 K1 18VT/BR (2.4L) MAP SIGNAL
2 K900 18DB/DG SENSOR GROUND
3 F855 18PK/YL 5 VOLT SUPPLY
MASS AIR FLOW SENSOR (DIESEL) - ORANGE 5 WAY
CAV CIRCUIT FUNCTION
1- -
2 K342 16BR/WT ECM/PCM RELAY OUTPUT
3 K957 20BK/OR MASS AIR FLOW SENSOR GROUND
4 F855 20PK/YL SENSOR REFERENCE VOLTAGE A
5 K55 20DB/OR MASS AIR FLOW SENSOR SIGNAL
MEMORY SEAT/MIRROR MODULE C1 - GRAY 26 WAY
CAV CIRCUIT FUNCTION
1 P69 20TN/WT LEFT MIRROR SENSOR GROUND
2 P25 20LG/VT SEAT HORIZONTAL POSITION SIGNAL
3 P27 20LG/LB REAR RISER POSITION SIGNAL
4- -
5- -
6 P67 20OR RIGHT MIRROR VERTICAL POSITION SIGNAL
7 P64 20TN/OR LEFT MIRROR VERTICAL POSITION SIGNAL
8 P21 20LG/TN SEAT FRONT DOWN SWITCH SENSE
9 P13 20LG/OR SEAT REAR DOWN SWITCH SENSE
10 P15 20LG/WT SEAT HORIZONTAL FORWARD SWITCH SENSE
11 P43 14LG/VT RECLINER UP SWITCH SENSE
12 - -
13 - -
14 P66 20WT RIGHT MIRROR SENSOR GROUND
15 P26 20LG FRONT RISER POSITION SIGNAL
16 P47 20LG/LB RECLINER POSITION SIGNAL
17 - -
18 - -
19 P68 20YL RIGHT MIRROR HORIZONTAL POSITION SIGNAL
20 P65 20TN/YL LEFT MIRROR HORIZONTAL POSITION SIGNAL
21 P19 20LG/LB SEAT FRONT UP SWITCH SENSE
22 P11 20LG/YL SEAT REAR UP SWITCH SENSE
23 P17 20LG/DG SEAT HORIZONTAL REARWARD SWITCH SENSE
24 P41 14LG/GY RECLINER DOWN SWITCH SENSE
25 - -
26 D25 20WT/VT PCI BUS
RS8W-80 CONNECTOR PIN-OUTS8W-80-93
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SPECIAL TOOLS
POWER DISTRIBUTION SYSTEMS
ACCESSORY RELAY
DESCRIPTION
The accessory relay is an electromechanical device
that switches fused battery current to the accessory
powered vehicle circuits when the ignition switch is
turned to the Accessory or On positions. The delay
feature will maintain power to the accessories for 45
seconds after the ignition is shut off or until a door is
opened. This allows sufficient time to close windows
and park the windshield wipers. The accessory relay
is located in the Integrated Power Module (IPM) in
the engine compartment.
The accessory relay is a International Standards
Organization (ISO) relay. Relays conforming to the
ISO specifications have common physical dimensions,
current capacities, terminal patterns, and terminal
functions.
The accessory relay cannot be repaired or adjusted
and, if faulty or damaged, it must be replaced.
OPERATION
The ISO relay consists of an electromagnetic coil, a
resistor or diode, and three (two fixed and one mov-
able) electrical contacts. The movable (common feed)
relay contact is held against one of the fixed contacts
(normally closed) by spring pressure. When the elec-
tromagnetic coil is energized, it draws the movable
contact away from the normally closed fixed contact,
and holds it against the other (normally open) fixed
contact.
When the electromagnetic coil is de-energized,
spring pressure returns the movable contact to the
normally closed position. The resistor or diode is con-
nected in parallel with the electromagnetic coil in therelay, and helps to dissipate voltage spikes that are
produced when the coil is de-energized.
DIAGNOSIS AND TESTING
DIAGNOSIS & TESTING - ACCESSORY RELAY
The accessory relay (Fig. 1) is located in the Inte-
grated Power Module (IPM), in the engine compart-
ment. For complete circuit diagrams, refer toWiring
Diagrams.
(1) Remove the accessory relay from the IPM.
Refer toAccessory Relayin the Removal and
Installation section of this group for the procedure.
(2) A relay in the de-energized position should
have continuity between terminals 87A and 30, and
no continuity between terminals 87 and 30. If OK, go
to Step 3. If not OK, replace the faulty relay.
(3) Resistance between terminals 85 and 86 (elec-
tromagnet) should be 75   5 ohms. If OK, go to Step
4. If not OK, replace the faulty relay.
(4) Connect a battery to terminals 85 and 86.
There should now be continuity between terminals
30 and 87, and no continuity between terminals 87A
and 30. If OK, perform the Relay Circuit Test that
follows. If not OK, replace the faulty relay.
DIAGNOSIS & TESTING - RELAY CIRCUIT TEST
(1) The relay common feed terminal cavity (30) of
the IPM is connected to battery voltage and should
be hot at all times. Check for battery voltage at the
fused B(+) circuit cavity in the IPM receptacle for the
accessory relay. If OK, go to Step 2. If not OK, repair
the fused B(+) circuit to the IPM fuse as required.
(2) The relay normally closed terminal (87A) is
connected to terminal 30 in the de-energized position,
but is not used for this application. Go to Step 3.
(3) The relay normally open terminal (87) is con-
nected to the common feed terminal (30) in the ener-
gized position. This terminal supplies battery voltage
Terminal Pick Kit 6680
Fig. 1 Accessory Relay
8W - 97 - 2 8W-97 POWER DISTRIBUTION SYSTEMRS
POWER DISTRIBUTION SYSTEM (Continued)
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