battery CHRYSLER VOYAGER 2004 Service Manual
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Page 491 of 2585

(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
to the starter solenoid field coils. There should be
continuity between the cavity for relay terminal 87
and the starter solenoid terminal at all times. If OK,
go to Step 4. If not OK, repair the open circuit to the
starter solenoid as required. (4) The coil battery terminal (85) is connected to
the electromagnet in the relay. It is energized when
the ignition switch is held in the Start position and
the clutch pedal is depressed (manual trans). Check
for battery voltage at the cavity for relay terminal 86
with the ignition switch in the Start position and the
clutch pedal is depressed (manual trans), and no
voltage when the ignition switch is released to the
On position. If OK, go to Step 5. If not OK, check for
an open or short circuit to the ignition switch and
repair, if required. If the circuit to the ignition switch
is OK, see the Ignition Switch Test procedure in this
group. (5) The coil ground terminal (86) is connected to
the electromagnet in the relay. It is grounded by the
PCM if the conditions are right to start the car. For
automatic trans. cars the PCM must see Park Neu-
tral switch low and near zero engine speed (rpm).
For manual trans. cars the PCM only needs to see
near zero engine speed (rpm) and low clutch inter-
lock input and see near zero engine speed (rpm). To
diagnose the Park Neutral switch of the trans range
sensor refer to the transaxle section. Check for conti-
nuity to ground while the ignition switch is in the
start position and if equipped the clutch pedal
depressed. If not OK and the vehicle has an auto-
matic trans. verify Park Neutral switch operation. If
that checks OK check for continuity between PCM
and the terminal 86. Repair open circuit as required.
Also check the clutch interlock switch operation if
equipped with a manual transmission. If OK, the
PCM may be defective.
SAFETY SWITCHES
For diagnostics of the Transmission Range Sensor,
refer to the Transaxle section for more information. If equipped with Clutch Interlock/Upstop Switch,
refer to Diagnosis and Testing in the Clutch section.
IGNITION SWITCH
After testing starter solenoid and relay, test igni-
tion switch and wiring. Refer to the Ignition Section
or Wiring Diagrams for more information. Check all
wiring for opens or shorts, and all connectors for
being loose or corroded.
BATTERY
For battery diagnosis and testing, refer to the Bat-
tery section for procedures.
ALL RELATED WIRING AND CONNECTORS
Refer to Wiring Diagrams for more information.
DIAGNOSIS AND TESTING - FEED CIRCUIT
RESISTANCE TEST
Before proceeding with this operation, review Diag-
nostic Preparation and Starter Feed Circuit Tests.
The following operation will require a voltmeter,
accurate to 1/10 of a volt.
CAUTION: Ignition and Fuel systems must be dis-
abled to prevent engine start while performing the
following tests.
(1) To disable the Ignition and Fuel systems, dis-
connect the Automatic Shutdown Relay (ASD). The
ASD relay is located in the Power Distribution Cen-
ter (PDC). Refer to the PDC cover for proper relay
location. (2) Gain access to battery terminals.
(3) With all wiring harnesses and components
properly connected, perform the following: (a) Connect the negative lead of the voltmeter to
the battery negative post, and positive lead to the
battery negative cable clamp. Rotate and hold the
ignition switch in the START position. Observe the
voltmeter. If voltage is detected, correct poor con-
tact between cable clamp and post. (b) Connect positive lead of the voltmeter to the
battery positive post, and negative lead to the bat-
tery positive cable clamp. Rotate and hold the igni-
tion switch key in the START position. Observe the
voltmeter. If voltage is detected, correct poor con-
tact between the cable clamp and post. (c) Connect negative lead of voltmeter to battery
negative terminal, and positive lead to engine
block near the battery cable attaching point.
Rotate and hold the ignition switch in the START
position. If voltage reads above 0.2 volt, correct
poor contact at ground cable attaching point. If
voltage reading is still above 0.2 volt after correct-
ing poor contacts, replace ground cable.
(4) Connect positive voltmeter lead to the starter
motor housing and the negative lead to the battery
negative terminal. Hold the ignition switch key in
the START position. If voltage reads above 0.2 volt,
correct poor starter to engine ground. (a) Connect the positive voltmeter lead to the
battery positive terminal, and negative lead to bat-
tery cable terminal on starter solenoid. Rotate and
hold the ignition switch in the START position. If
voltage reads above 0.2 volt, correct poor contact at
8Fs - 34 STARTINGRS
STARTING (Continued)
Page 492 of 2585

battery cable to solenoid connection. If reading is
still above 0.2 volt after correcting poor contacts,
replace battery positive cable.(b) If resistance tests do not detect feed circuit
failures, replace the starter motor.
DIAGNOSIS AND TESTING - FEED CIRCUIT
TEST
NOTE: The following results are based upon the
vehicle being at room temperature.
The following procedure will require a suitable
volt-ampere tester (Fig. 1).
CAUTION: Before performing any starter tests, the
ignition and fuel systems must be disabled.
(1) Check battery before performing this test. Bat-
tery must be fully charged. (2) Connect a volt-ampere tester to the battery ter-
minals. Refer to the operating instructions provided
with the tester being used. (3) To disable the ignition and fuel systems, dis-
connect the Automatic Shutdown Relay (ASD). The
ASD relay is located in the Power Distribution Cen-
ter (PDC). Refer to the PDC cover for proper relay
location. (4) Verify that all lights and accessories are OFF,
and the transmission shift selector is in the PARK
and SET parking brake.
CAUTION: Do not overheat the starter motor or
draw the battery voltage below 9.6 volts during
cranking operations.
(5) Rotate and hold the ignition switch in the
START position. Observe the volt-ampere tester (Fig.
1). ² If voltage reads above 9.6 volts, and amperage
draw reads above 280 amps, check for engine seizing
or faulty starter. ² If voltage reads 12.4 volts or greater and amper-
age reads 0 to 10 amps, check for corroded cables
and/or bad connections. ² Voltage below 9.6 volts and amperage draw
above 300 amps, the problem is the starter. Replace
the starter refer to starter removal. (6) After the starting system problems have been
corrected, verify the battery state-of-charge and
charge battery if necessary. Disconnect all testing
equipment and connect ASD relay. Start the vehicle
several times to assure the problem has been cor-
rected.
SPECIFICATIONS
Torques
DESCRIPTION N´m Ft. Lbs. In. Lbs.
Starter Mounting Bolts 47.4 35
Starter Solenoid Battery Nut 11.3 8.3 100
Fig. 1 Volt Ampere Tester
RS
STARTING8Fs-35
STARTING (Continued)
Page 493 of 2585

STARTER
MANUFACTURER NIPPONDENSOEngine Application 2.4L /3.3/3.8L Power rating 1.2 KwVoltage 12 VOLTS
No. of Fields 4 No. of Poles 4 Brushes 4Drive Conventional Gear Train
Free running Test
Voltage 11
Amperage Draw 73 Amp
Minimum Speed 3401 RPM
SolenoidClosing Voltage 7.5 Volts
Cranking Amperage Draw test 150 - 200 Amps.
Engine should be up to operating temperature.
Extremely heavy oil or tight engine will increase
starter amperage draw.
STARTER MOTOR
REMOVAL
REMOVAL - 2.4L
(1) Release hood latch and open hood (Fig. 2).
(2) Disconnect and isolate the battery negative
cable. (3) Disconnect solenoid wire connector from termi-
nal (Fig. 3). (4) Remove nut holding B+ wire to terminal.
(5) Disconnect solenoid and B+ wires from starter
terminals. (6) Remove the lower bolt.
(7) Remove the upper bolt and ground wire (Fig.
4). (8) Remove starter.
REMOVAL - 3.3/3.8L
(1) Release hood latch and open hood.
(2) Disconnect and isolate the battery negative
cable. (3) Hoist and support vehicle on safety stands.
(4) Remove nut holding B+ terminal to starter
solenoid (Fig. 5). (5) Disconnect solenoid connector from starter.
(6) Remove bolts holding starter to transaxle bell-
housing (Fig. 6). (7) Remove starter from bellhousing (Fig. 7). (8) Separate starter spacer from transaxle bell-
housing.
REMOVAL - 2.5L
(1) Disconnect the negative battery cable.
(2) Raise vehicle and support.
(3) Remove the lower engine splash shield.
(4) Remove the electrical connectors from the
starter (Fig. 8).
Fig. 2 STARTER 2.4L
Fig. 3 BATTERY CABLE AND FIELD WIRE 2.4L
8Fs - 36 STARTINGRS
STARTING (Continued)
Page 494 of 2585

(5) Remove the starter mounting bolts (Fig. 9).
(6) Remove the starter.
INSTALLATION
INSTALLATION - 2.4L
(1) Place starter in position on vehicle.
(2) Install the lower bolts to hold starter to trans-
axle bellhousing. (3) Install the upper bolt and ground wire (Fig. 4). (4) Place solenoid and B+ wires in position on
starter terminals (Fig. 3). (5) Install nut to hold B+ wire to terminal.
(6) Connect solenoid wire connector onto terminal.
(7) Connect battery negative cable.
(8) Verify starter operation.
INSTALLATION - 3.3/3.8L
(1) Place starter spacer in position on transaxle
bellhousing, flange toward flywheel. (2) Place starter in position on bellhousing.
(3) Install bolts and ground wire (Fig. 4) to hold
starter to transaxle bellhousing. (4) Connect solenoid connector into starter.
Fig. 4 Upper Bolt and Ground Wire
Fig. 5 Starter
1 - SOLENOID CONNECTOR
2 - B+ CONNECTOR
Fig. 6 Starter Bolts
1-STARTER
2 - STARTER BOLTS
3 - TRANSAXLE
4 - ENGINE MOUNT
Fig. 7 STARTER 3.3/3.8L
1 - BELL HOUSING PLATE
2 - FLYWHEEL
3 - ENGINE MOUNT
4-STARTER
5 - SPACER
RS STARTING8Fs-37
STARTER MOTOR (Continued)
Page 495 of 2585

(5) Install nut to hold B+ terminal to starter sole-
noid. (6) Lower vehicle.
(7) Connect battery negative cable.
(8) Verify starter operation.
INSTALLATION - 2.5L
(1) Raise vehicle and support.
(2) Install the starter.
(3) Install the starter mounting bolts (Fig. 9). (4) Install the electrical connectors to the starter
(Fig. 8). (5) Install the lower engine splash shield.
(6) Connect the negative battery cable.
(7) Lower vehicle.
Fig. 8 STARTER LOCATIONFig. 9 STARTER MOUNTING BOLTS
1 - Starter
2 - Mounting Bolts
8Fs - 38 STARTINGRS
STARTER MOTOR (Continued)
Page 497 of 2585

OPERATION
When the rear window defogger button is
depressed to the On position, current is directed to
the rear defogger grid lines and the heated power
mirrors (if equipped). The heated grid lines heat the
glass to help clear the rear window and side mirror
surfaces of fog or frost.
The defogger system is controlled by a momentary
switch located in the A/C-heater control on the
instrument panel. A yellow indicator in the switch
will illuminate to indicate when the defogger system
is turned on. The integrated power module (IPM)
contains the defogger system control circuitry.
NOTE:
The rear window defogger turns off automat-
ically after approximately 10 minutes of initial opera-
tion. Each following activation cycle of the defogger
system will last approximately five minutes.
The defogger system will be automatically turned
off after a programmed time interval of about ten
minutes. After the initial time interval has expired, if
the defogger switch is turned on again during the
same ignition cycle, the defogger system will auto-
matically turn off after about five minutes.
The defogger system will automatically shut off if
the ignition switch is turned to the Off position, or it
can be turned off manually by depressing the defog-
ger switch a second time.
DIAGNOSIS AND TESTING - REAR WINDOW
DEFOGGER SYSTEM
The electrically heated rear window defogger oper-
ation can be checked on the vehicle in the following
manner:
(1) Turn the ignition switch to the On position.
(2) Make sure that the defogger switch is Off.
(3) Using a ammeter on the battery, turn the rear
defogger control switch to the On position, a distinct
increase in amperage draw should be noted.
(4) The rear window defogger operation can be
checked by feeling the glass. A distinct difference in
temperature between the grid lines and adjacent
clear glass should be detected in three to four min-
utes of operation.
(5) Using a DC voltmeter, contact the negative
lead to Point B, and the positive lead to Point A (Fig.
2). The voltmeter should read 10-14 volts.
NOTE: Illumination of the LED indicator means that
there is power available at the switch, but does not
necessarily verify system operation.
(6) If turning the defogger switch On produced no
distinct current draw on the ammeter, the problem
should be isolated in the following manner:²Confirm that the ignition switch is On.
²Make sure that the heated rear window feed
wire is connected to the terminal and that the
ground wire is in fact grounded.
²Make sure that fuse 13 (40 amp) in the inte-
grated power module (IPM) is OK.
(7) When the above steps have been completed and
the system is still inoperative, one or more of the fol-
lowing could be defective. It may be necessary to con-
nect a DRBIIItscan tool to perform further
diagnostics. Refer to Body Diagnostic Procedures.
²Rear window defogger switch in the A/C-heater
control.
²J1850 bus communication between the A/C-
heater control and the front control module (FCM).
²Rear window defogger relay in the IPM.
²Rear window defogger relay control circuity in
the IPM.
²Check for a loose wire connector or a wire
pushed out of a connector.
²Rear window grid lines (all grid lines would
have to be broken, or one of the feed wires not con-
nected for the system to be inoperative).
(8) If turning the rear window defogger switch On
produces severe voltmeter deflection, the circuit
should be closely checked for a shorting condition.
(9) If the system operation has been verified but
LED indicator does not illuminate, replace the A/C-
heater control.
(10) For detailed wiring information, refer to Wir-
ing Diagrams.
Fig. 2 Grid Line Test
1 - VOLTMETER
2 - VOLTAGE FEED (A)
3 - FEED WIRE
4 - MID-POINT (C)
5 - HEATED WINDOW GRID
6 - GROUND WIRE
7 - GROUND (B)
8G - 2 HEATED GLASSRS
HEATED GLASS (Continued)
Page 498 of 2585

REAR WINDOW DEFOGGER
RELAY
DESCRIPTION
The rear window defogger relay (Fig. 3) is a Inter-
national Standards Organization (ISO)-type relay.
Relays conforming to the ISO specifications have
common physical dimensions, current capacities, ter-
minal patterns, and terminal functions. The rear
window defogger relay is a electromechanical device
that switches battery current through a fuse in the
integrated power module (IPM) to the rear window
defogger grid and switches battery current through a
positive thermal coefficient (PTC) in the IMP to the
outside mirror heating grids. The relay is energized
when the relay coil is provided a ground path by the
rear window defogger relay control in the front con-
trol module (FCM).
The rear window defogger relay is located in the
IPM in the engine compartment. See the fuse and
relay layout map on the inner surface of the IPM
cover for rear window defogger relay identification
and location.
The rear window defogger relay cannot be adjusted
or repaired and, if damaged or faulty, 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 movablecontact 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 is connected in
parallel with the electromagnetic coil in the relay,
and helps to dissipate voltage spikes that are pro-
duced when the coil is de-energized.
Refer to the appropriate wiring information for
diagnosis and testing of the ISO relay and for com-
plete rear window defogger system wiring diagrams.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the cover from the Integrated Power
Module (IPM) (Fig. 4).
(3) Refer to the fuse and relay layout map molded
into the inner surface of the IPM cover for rear win-
dow defogger relay identification and location.
(4) Remove the rear window defogger relay from
the IPM.
INSTALLATION
(1) Refer to the fuse and relay layout map molded
into the inner surface of the Integrated Power Mod-
ule (IPM) cover for rear window defogger relay iden-
tification and location.
Fig. 3 Rear Window Defogger Relay
30 - COMMON FEED
85 - COIL GROUND
86 - COIL BATTERY
87 - NORMALLY OPEN
87A - NORMALLY CLOSED
Fig. 4 Integrated Power Module
1 - BATTERY THERMAL GUARD
2 - INTEGRATED POWER MODULE (IPM)
3 - FRONT CONTROL MODULE
RSHEATED GLASS8G-3
Page 499 of 2585

(2) Position the rear window defogger relay into
the proper receptacle in the IPM.
(3) Align the rear window defogger relay terminals
with the terminal cavities in the IPM receptacle.
(4) Push down firmly on the rear window defogger
relay until the terminals are fully seated in the ter-
minal cavities in the IPM receptacle.
(5) Install the cover onto the IPM.
(6) Reconnect the battery negative cable.
REAR WINDOW DEFOGGER
SWITCH
DESCRIPTION
The rear window defogger switch is integrated into
the A/C-heater control mounted in the center of the
instrument panel (Fig. 5). The rear window defogger
switch and the rear window defogger LED indicator
cannot be repaired and, if faulty or damaged, the
A/C-heater control must be replaced.
OPERATION
An LED indicator will illuminate when the rear
window defogger switch is activated. The switch
energizes the A/C-heater control module which then
requests the front control module (FCM) to activate
the rear window defogger relay via the J1850 com-
munication bus. The rear window defogger relay con-
trols the current to flow to the grids of the rear
window defogger and the heated power side view
mirrors. The defogger relay will be on for approxi-
mately 10 minutes or until the control switch or igni-
tion is turned off.
REAR WINDOW DEFOGGER
GRID
STANDARD PROCEDURE - GRID LINE AND
TERMINAL REPAIR
REAR WINDOW DEFOGGER GRID LINE REPAIR
WARNING: THE REPAIR KIT CONTAINS EPOXY
RESIN AND AMINE TYPE HARDENER WHICH MAY
CAUSE SKIN OR EYE IRRITATION AND CAN BE
HARMFUL IF SWALLOWED. USE WITH ADEQUATE
VENTILATION. DO NOT USE NEAR FIRE OR OPEN
FLAME THE CONTENTS CONTAIN FLAMMABLE
SOLVENTS. KEEP OUT OF REACH OF CHILDREN.
²DO NOT TAKE INTERNALLY, IF SWALLOWED
INDUCE VOMITING AND CALL A PHYSICIAN IMME-
DIATELY.
²IF SKIN CONTACT OCCURS, WASH AFFECTED
AREAS WITH SOAP AND WATER.
²IF EYE CONTACT OCCURS, FLUSH WITH
PLENTY OF WATER.
The repair of the grid lines is possible using the
MopartGrid Line Repair Package or an equivalent.
(1) Mask the repair area so the conductive epoxy
can be extended onto the grid line(s) or the bus bar
(Fig. 6).
(2) Follow the instructions in the repair kit for
preparing the damaged area.
(3) Remove the package separator clamp and mix
the conductive epoxy thoroughly. Fold in half and cut
the center corner to dispense the epoxy.
(4) Apply the conductive epoxy through the slit in
the masking tape. Overlap both ends of the break(s)
by 19 mm (3/4 inch).
(5) Carefully remove the masking tape from the
grid line(s).
CAUTION: To prevent the glass from fracturing, do
not allow the glass surface to exceed 204É C (400É
F).
(6) Allow the epoxy to cure 24 hours at room tem-
perature or use a heat gun with a 260É to 371É C
(500É to 700É F) range for 15 minutes. Hold the heat
gun approximately 254 mm (10 inches) from the
repaired area.
(7) After the conductive epoxy is properly cured,
verify operation of the rear window defogger.
Fig. 5 A/C-Heater Control - Typical
1 - TRIM BEZEL
2 - INFRARED TEMPERATURE SENSOR
3 - A/C REQUEST SWITCH
4 - REAR WINDOW DEFOGGER/HEATED MIRRORS SWITCH
5 - FRONT WINDOW DEFROSTER MODE SELECTOR
8G - 4 HEATED GLASSRS
REAR WINDOW DEFOGGER RELAY (Continued)
Page 503 of 2585

Refer to the description of the heated seat switch
later in this section for additional information.
Hard wired circuitry connects the heated seat sys-
tem components to each other through the electrical
system of the vehicle. These hard wired circuits are
integral to several wire harnesses, which are routed
throughout the vehicle and retained by many differ-
ent methods. These circuits may be connected to each
other, to the vehicle electrical system and to the
heated seat system components through the use of a
combination of soldered splices and splice block con-
nectors. Refer to Wiring for complete system wiring
schematics. The wiring information also includes the
proper wire and connector repair procedures, further
details on wire harness routing and retention, as well
as pin-out and location views for the various wire
harness connectors, splices and grounds.
OPERATION
The heated seat system components operate on
battery current received through a fuse in the Inte-
grated Power Module (IPM) on a fused ignition
switch output (run) circuit from the Body Control
Module. The system will only operate when the igni-
tion switch is in the On position. The heated seat
system will be turned Off automatically whenever
the ignition switch is turned to any position except
On. Also, the heated seat system will not operate
when the surface temperature of the seat cushion
cover at either heated seat sensor is above the
designed temperature set points of the system. See
the owner's manual in the vehicle glove box for more
information on the features, use and operation of the
heated seat system.
DIAGNOSIS AND TESTING - HEATED SEAT
SYSTEM
The most reliable, efficient, and accurate means to
diagnose the heated seat system requires the use of a
DRBIIItscan tool and the proper Diagnostic Proce-
dures manual. The DRBIIItscan tool can provide
confirmation that the PCI data bus is functional, that
all of the electronic modules are sending and receiv-
ing the proper messages on the PCI data bus, and
that the heated seat modules are receiving the
proper hard wired inputs from and relaying the
proper hard wired outputs to the Body Control Mod-
ule in order to perform its functions. Refer toWiring
Diagramsfor complete wiring schematics. The wir-
ing information also includes the proper wire and
connector repair procedures, further details on wire
harness routing and retention, as well as pin-out and
location views for the various wire harness connec-
tors, splices and grounds.
DRIVER HEATED SEAT
SWITCH
DESCRIPTION
The heated seat switches are mounted in the
instrument panel center bezel (Fig. 2). The two three-
position rocker-type switches, one switch for each
front seat, are incorporated into one large switch
assembly that also includes the hazard, rear window
wiper and washer switches. The heated seat switches
each provide a resistor multiplexed signal to its
respective Heated Seat Module (HSM) through sepa-
rate hard wired circuits. Each switch has an Off,
Low, and High position so that both the driver and
the front seat passenger can select a preferred seat
heating mode. Each switch has two Light-Emitting
Diodes (LED) which light to indicate that the heater
for the seat is turned on.
The heated seat switches and their LEDs cannot
be repaired. If either switch or LED is faulty or dam-
aged, the entire switch assembly must be replaced.
OPERATION
There are three positions that can be selected with
each of the heated seat switches: Off, Low, or High.
When the left side of the switch rocker is fully
depressed, the Low position is selected and the low
position LED indicator illuminates. When the right
side of the switch rocker is fully depressed, the High
position is selected and the high position LED indi-
Fig. 2 HEATED SEAT SWITCH LOCATION
1 - HEATED SEAT SWITCHES
8G - 8 HEATED SEAT SYSTEMRS
HEATED SEAT SYSTEM (Continued)
Page 504 of 2585

cator illuminates. When the switch rocker is moved
to its neutral position (middle), Off is selected and
both LED indicators are extinguished.
Each switch provides separate resistor multiplexed
hard wire inputs to its respective Heated Seat Mod-
ule (HSM) to indicate the selected switch position.
The heated seat module responds to the heated seat
switch status messages by controlling the output to
the seat heater elements of the selected seat. The
Low heat position set point is about 36É C (97É F),
and the High heat position set point is about 41É C
(105É F).
DIAGNOSIS AND TESTING - DRIVER HEATED
SEAT SWITCH
For complete circuit diagrams, refer toWiring
Diagrams.
WARNING: REFER TO THE RESTRAINTS SECTION
OF THIS MANUAL BEFORE ATTEMPTING ANY
STEERING WHEEL, STEERING COLUMN, SEAT OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
CHECKING SWITCH SIGNAL AND WIRING AT THE
MODULE
(1) Disconnect and isolate the battery negative
cable.
(2) Access and disconnect the gray 4-way connector
from the heated seat module. Visually inspect wiring
terminals for damage that would prevent positive
connection. If not OK, repair or replace the necessary
components.
(3) Place the heated seat switch in the LO posi-
tion. Using an Ohmmeter, check the resistance
between cavities 2 and 3 of the gray connector noted
above. Resistance should be about 3.5 kilohms (3500
ohms). If not OK, check resistance directly at switch,
as noted below. If OK, proceed to the next step. If not
OK, replace the faulty switch.
(4) Place the heated seat switch in the HI position.
Using an ohmmeter, check the resistance between
cavities 2 and 3 of the gray connector noted above.
Resistance should be about 1.4 kilohms (1400 ohms).
If not OK, check resistance directly at switch, as
noted below. If OK, proceed. If not OK replace the
faulty switch.
(5) With the system ON in the HI position, check
for battery voltage and ground at cavities 4 and 1. If
OK, proceed with testing remaining components. If
not OK, repair open or shorted wiring.
CHECKING SWITCH ONLY
(1) Disconnect and isolate the battery negative
cable. Remove the center bezel from the instrument
panel (Refer to 23 - BODY/INSTRUMENT PANEL/
INSTRUMENT PANEL CENTER BEZEL -
REMOVAL). Check for continuity between the
ground circuit cavity (#10) of the instrument panel
switch bank electrical connector and a good ground.
There should be continuity. If OK, go to Step 2. If not
OK, repair the open ground circuit to ground as
required.
(2) Reconnect the battery negative cable. Turn the
ignition switch to the On position. Check for battery
voltage at the fused ignition switch output (run) cir-
cuit cavity of the instrument panel switch bank con-
nector (#4). If OK, turn the ignition switch to the Off
position, and go to Step 3. If not OK, repair the open
fused ignition switch output (run) circuit as required.
(3) Test the heated seat switch as shown in the
Heated Seat Switch Test chart and the connector pin-
out below (Fig. 3). If OK, go to Step 4. If not OK,
replace the faulty switch bank assembly.
DRIVER HEATED SEAT SWITCH TEST
SWITCH
POSITIONRESISTANCE
BETWEENRESISTANCE
(OHMS)
Off Pin4&5OPEN
Low Pin4&53570
High Pin4&51430
All resistance values are 1%.
Fig. 3 Instrument Panel Switch Bank Connector
RSHEATED SEAT SYSTEM8G-9
DRIVER HEATED SEAT SWITCH (Continued)