Chrysler Pacifica. Manual — part 504

DIAGNOSIS AND TESTING - INSTRUMENT
PANEL SWITCH POD

ELECTRONIC VEHICLE INFORMATION CENTER
AND NAVIGATION CONTROLS

Refer to the appropriate wiring information for

connector views and pin-outs. Check fuses first that
supply power to the switch pod (IOD fuse). If OK,
continue. If not OK, repair as necessary to continue.

Remove the instrument panel switch pod for test-

ing. First of all check for 12v battery power at termi-
nal 1 of the instrument panel harness connector.
Then check for ground at terminal 12 of the instru-
ment panel harness connector. If OK, continue. If not
OK, repair wire as necessary to continue.

Each EVIC button press and the open Circuit State

will provide a unique resistance, with respect to the
EVIC/NAV Button Analog Common circuit. Refer to
the INSTRUMENT PANEL SWITCH POD RESIS-
TANCE table.

The unique EVIC/NAV button press resistances are:

INSTRUMENT PANEL SWITCH POD

RESISTANCE

BUTTON

RESISTANCE

EVIC CONTROLS

OPEN CIRCUIT

10210

V

± 8 %

US/M

4010

V

± 8 %

STEP

2010

V

± 8 %

MENU

1010

V

± 8 %

RESET

390

V

± 8 %

NAVIGATION CONTROLS

OPEN CIRCUIT

16130

V

± 8 %

UP CURSOR

7030

V

± 8 %

DOWN CURSOR

4030

V

± 8 %

LEFT CURSOR

2530

V

± 8 %

RIGHT CURSOR

1620

V

± 8 %

ENTER

1000

V

± 8 %

NAV

570

V

± 8 %

CANCEL

240

V

± 8 %

If any of the resistances are not within the specifi-

cations, the entire switch pod needs to be replaced
(Refer to 8 - ELECTRICAL/INSTRUMENT CLUS-
TER/INSTRUMENT

PANEL

SWITCH

POD

-

REMOVAL).

CLOCK

For clock diagnosis, check for 12v battery power and

ground at the instrument panel connector end of the

instrument panel switch pod (terminal 1 - 12v, and ter-
minal 12 - ground). If power and ground are present
and the clock doesn’t work, replace switch pod.

If the set button is inoperative, the complete

switch pod must be replaced.

HAZARD SWITCH

A low side (ground) signal will be provided from

the Instrument Panel Switch Pod to the BCM to indi-
cate that the Hazard button has been enabled (circuit
closed) by a vehicle occupant.

With the switch removed, check continuity between

the hazard switch input and the ground terminal
when the switch is enabled. If continuity is present,
switch is OK. If no continuity, replace complete
instrument panel switch pod.

REMOVAL

(1) Remove the cluster bezel (Refer to 23 - BODY/

INSTRUMENT

PANEL/CLUSTER

BEZEL

-

REMOVAL).

(2) Remove the three retaining screws holding the

switch pod to the cluster bezel (Fig. 23).

INSTALLATION

(1) Install the three retaining screws holding the

switch pod to the cluster bezel.

(2) Install the cluster bezel (Refer to 23 - BODY/

INSTRUMENT

PANEL/CLUSTER

BEZEL

-

INSTALLATION).

WARNING: DO NOT CONNECT THE BATTERY NEG-
ATIVE

CABLE.

(Refer

to

8

-

ELECTRICAL/RE-

STRAINTS - DIAGNOSIS AND TESTING - AIRBAG
SYSTEM) FIRST.

(3) Verify vehicle and system operation.

Fig. 23 INSTRUMENT PANEL SWITCH POD -

REMOVE/INSTALL

1 - INSTRUMENT PANEL SWITCH POD ILLUMINATION

CS

INSTRUMENT CLUSTER

8J - 9

INSTRUMENT PANEL SWITCH POD (Continued)

LAMPS

TABLE OF CONTENTS

page

page

LAMPS/LIGHTING - EXTERIOR . . . . . . . . . . . . . . . 1

LAMPS/LIGHTING - INTERIOR . . . . . . . . . . . . . . . 27

LAMPS/LIGHTING - EXTERIOR

TABLE OF CONTENTS

page

page

LAMPS/LIGHTING - EXTERIOR

DESCRIPTION

. . . . . . . . . . . . . . . . . . . . . . . . . . 2

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

WARNING

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

DIAGNOSIS AND TESTING - LAMPS/

LIGHTING - EXTERIOR

. . . . . . . . . . . . . . . . . . 4

SPECIFICATIONS - EXTERIOR LAMPS

. . . . . . . 5

BACK UP LAMP

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . 5

BRAKE LAMP SWITCH

DESCRIPTION

. . . . . . . . . . . . . . . . . . . . . . . . . . 5

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

DIAGNOSIS AND TESTING - BRAKE LAMP

SWITCH

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . 7

CENTER HIGH MOUNTED STOP LAMP UNIT

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . 8

FOG LAMP

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . 8

FOG LAMP UNIT

STANDARD PROCEDURE - FOG LAMP UNIT

ALIGNMENT

. . . . . . . . . . . . . . . . . . . . . . . . . . 9

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . 9

FRONT SIDE MARKER LAMP

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . 10

HAZARD SWITCH

DESCRIPTION

. . . . . . . . . . . . . . . . . . . . . . . . . 10

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . 11

HEADLAMP

DESCRIPTION

. . . . . . . . . . . . . . . . . . . . . . . . . 11

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . 11

DIAGNOSIS AND TESTING

DIAGNOSIS AND TESTING - HEADLAMP

. . . 12

DIAGNOSIS AND TESTING - HIGH

INTENSITY DISCHARGE HEADLAMPS . . . . . 14

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . 16

HEADLAMP UNIT

STANDARD PROCEDURE - HEADLAMP UNIT

ALIGNMENT

. . . . . . . . . . . . . . . . . . . . . . . . . 17

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . 20

LEFT MULTI-FUNCTION SWITCH

DESCRIPTION

. . . . . . . . . . . . . . . . . . . . . . . . . 20

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . 21

DIAGNOSIS AND TESTING - LEFT MULTI-

FUNCTION SWITCH

. . . . . . . . . . . . . . . . . . . 22

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . 23

LICENSE PLATE LAMP

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . 25

REAR SIDE MARKER LAMP

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . 25

TAIL LAMP

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . 25

TAIL LAMP UNIT

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . 26

CS

LAMPS

8L - 1

LAMPS/LIGHTING - EXTERIOR

DESCRIPTION

LAMP SYSTEMS

Lighting circuits are protected by fuses. Lighting

circuits require an overload protected power and high
side drivers source, ON/OFF device, lamps and body
grounds to operate properly. Plastic lamps require a
wire in the harness to supply body ground to the
lamp socket. Replace sockets and bulbs that are cor-
roded.

Some of the interior and exterior lighting functions

are governed by the Body Control Module (BCM).
The headlamp, dome, and the door ajar switches pro-
vide signals to the BCM. The BCM in turn sends a
Programmable Communication Interface (PCI) bus
message to the Integrated Power Module (IPM) to
enable the necessary drivers to set the required illu-
mination configuration.

Wire connectors can make intermittent contact or

become corroded. Before coupling wire connectors,
inspect the terminals inside the connector. Male termi-
nals should not be bent or disengaged from the insula-
tor. Female terminals should not be sprung open or
disengaged from the insulator. Bent and sprung termi-
nals can be repaired using needle nose pliers and pick
tool. Corroded terminals appear chalky or green. Cor-
roded terminals should be replaced to avoid recurrence
of the problem symptoms.

This model may be equipped with Auto Headlamps,

Headlamps On With Windshield Wipers customer
programmable feature, Daytime Running Lamps
(DRL - Canada Only), and High Intensity Discharge
(HID) Headlamps.

HEADLAMP SYSTEM

The configuration of the headlamp system of head-

lamps, park lamps and fog lamps is determined by
the BCM. The BCM determines the lighting configu-
ration as a result of the inputs from the ignition
switch, headlamp switch and multi-function switch. A
PCI bus is transmitted from the BCM to the IPM to
enable the necessary drivers to set the illumination
configuration. Eight wires are connected between the
headlamp switch and the BCM. The first wire con-
tains information regarding the position of the head-
lamp switch (Off, Automatic Headlamps, Automatic
Headlamp switch fog, Park with Fog, Head, or Head
with Fog Lamps). The second wire contains informa-
tion regarding the position of the dimmer switch
(Dome Lamp, Daytime Brightness, Dimming Level or
Off). The third wire is a dedicated signal return
(ground) wire. The fourth wire provides power to the
front fog lamp indicator. The fifth wire contains infor-
mation regarding the Optical Horn. The sixth wire

contains information regarding the High Beam Sig-
nal. The seventh wire contains information regarding
the Right Turn Input. The eighth wire contains infor-
mation regarding the Left Turn Input.

HEADLAMP TIME DELAY SYSTEM

The headlamp time delay system is controlled by

the Body Control Module (BCM) via a PCI bus mes-
sage transmitted by the BCM to the IPM to turn off
the headlamps.

AUTOMATIC HEADLAMP SYSTEM

The Automatic Headlamp system turns the instru-

mentation and exterior illumination lamps ON when
the ambient light levels are Night and the engine
RPM is 450 or above, and OFF when light levels are
Day.

DAYTIME RUNNING LAMPS

Operating the high-beam headlamps at reduced

power provides daytime running lamps, which are
required on all new Canadian vehicles.

HEADLAMPS ON WITH WINDSHIELD WIPERS

For vehicles equipped with the Automatic Headlamp

System, the instrumentation and exterior illumination
lamps will be turned ON when the headlamp switch is
in the AUTO position, RPM > 450 and the windshield
wipers have been in the intermittent, low or high mode
of operation for more than ten seconds. When the
windshield wipers are turned OFF the Body Control
Module will determine if the instrumentation and exte-
rior illumination lamps should remain ON base upon
the current ambient light level.

OPERATION

HEADLAMP POWER

The headlamp switch is a direct input to the Body

Control Module (BCM). The BCM sends a Program-
mable Communication Interface (PCI) data bus mes-
sage

to

the

Integrated

Power

Module

(IPM)

informing it of a headlamp switch status change. The
IPM then turns on power to the headlamps through
four

9fuseless9 circuits. These circuits are electroni-

cally controlled and continuously monitored for mal-
functions. Power is supplied to each filament in a
separate circuit. On vehicles with HID lamps for low
beam, the IPM provides power to the HID module
which in turn, turns the lamps on. For vehicles
equipped with Daytime Running Lamps (DRL), the
IPM electronically steps down the headlamp voltage
to provide the desired illumination. The DRL’s will
automatically extinguish when the blinker or haz-
ards are activated and will come back on when the
blinker or hazards are deactivated.

8L - 2

LAMPS/LIGHTING - EXTERIOR

CS