2005 CHRYSLER CARAVAN fuse

(3) Install the retaining screws.
(4) Reconnect the battery negative cable.
FRONT FOG LAMP
DIAGNOSIS AND TESTING - FRONT FOG LAMP
When a vehicle experiences problems with the
front fog lamp system, verify the condition of the bat-
tery connections, fuses, charging system, fog lamp
bulbs, wire connectors, relay, high beam switch, and
headlamp switch. Refer to the appropriate wiring
information.
Each vehicle is equipped with various lamp assem-
blies. A good ground is necessary for proper lighting
operation. Grounding is provided by the lamp socket
when it comes in contact with the metal body, or
through a separate ground wire.
When changing lamp bulbs check the socket for
corrosion. If corrosion is present, clean it with a wire
brush.
When it is necessary to remove components to ser-
vice another, it should not be necessary to apply
excessive force or bend a component to remove it.
Before damaging a trim component, verify hidden
fasteners or captured edges are not holding the com-
ponent in place.
FRONT FOG LAMP DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
FOG LAMPS ARE DIM
WITH ENGINE IDLING
OR IGNITION TURNED
OFF.1. Loose or corroded battery
cables.1. Clean and secure battery cable clamps and
posts.
2. Loose or worn generator drive
belt.2. Adjust or replace generator drive belt.
3. Charging system output too low. 3. Test and repair charging system. Refer to
Electrical, Charging,
4. Battery has insufficient charge. 4. Test battery state-of-charge. Refer to
Electrical, Battery System.
5. Battery is sulfated or shorted. 5. Load test battery. Refer to Electrical, Battery
System.
6. Poor lighting circuit Z349/Z248
ground.6. Test for voltage drop across Z349/248
ground locations. Refer to Electrical, Wiring
Information.
FOG LAMP BULBS
BURN OUT
FREQUENTLY1. Charging system output too
high.1. Test and repair charging system. Refer to
Electrical, Charging.
2. Loose or corroded terminals or
splices in circuit.2. Inspect and repair all connectors and splices.
Refer to Electrical, Wiring Information.
Fig. 7 CHMSL ELECTRICAL CONNECTOR
1 - CHMSL UNIT
2 - CHMSL ELECTRICAL CONNECTOR
RSLAMPS/LIGHTING - EXTERIOR8L-7
CENTER HIGH MOUNTED STOP LAMP UNIT (Continued)

CONDITION POSSIBLE CAUSES CORRECTION
FOG LAMPS ARE DIM
WITH ENGINE
RUNNING ABOVE IDLE1. Charging system output too low. 1. Test and repair charging system. Refer to
Electrical, Charging.
2. Poor lighting circuit Z349/Z248
ground.2. Test for voltage drop across Z349/Z248
ground locations. Refer to Electrical, Wiring
Information.
3. High resistance in fog lamp
circuit.3. Test amperage draw of fog lamp circuit.
FOG LAMPS FLASH
RANDOMLY1. Poor lighting circuit Z349/Z248
ground.1. Test for voltage drop across Z349/Z248
ground locations. Refer to Electrical, Wiring
Information.
2. Variable resistance in fog lamp
circuit.2. Test amperage draw of fog lamp circuit.
3. Faulty fog lamp switch (part of
headlamp switch).3. Replace headlamp switch.
4. Loose or corroded terminals or
splices in circuit.4. Inspect and repair all connectors and splices.
Refer to Electrical, Wiring Information.
5. Is relay engaging properly? 5. Verify function of fog lamp relay in IPM.
6. PCI Bus Communication. 6. Verify PCI bus message (fog lamp info)
transmitted from BCM and received by FCM.
FOG LAMPS DO NOT
ILLUMINATE1. Blown fuse for fog lamp. 1. Replace fuse. Refer to Electrical, Wiring
Information.
2. No Z349/Z248 ground at fog
lamps.2. Repair circuit ground. Refer to Electrical,
Wiring Information.
3. Faulty fog lamp switch (part of
headlamp switch).3. Replace headlamp switch.
4. Broken connector terminal or
wire splice in fog lamp circuit.4. Repair connector terminal or wire splice.
5. Faulty or burned out bulb. 5. Replace bulb.
6. Is relay engaging? 6. Verify function of fog lamp relay in IPM.
7. PCI Bus Communication. 7. Verify PCI bus message (fog lamp info)
transmitted from BCM and received by FCM.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) From behind the bumper fascia, twist bulb
counter-clockwise, and remove bulb.
(3) Remove the wire connector from the fog lamp
bulb.
INSTALLATION
(1) Reconnect wire harness to bulb.
(2) Install bulb and twist clockwise.
(3) Install battery negative cable.
8L - 8 LAMPS/LIGHTING - EXTERIORRS
FRONT FOG LAMP (Continued)

HEADLAMP
DIAGNOSIS AND TESTING - HEADLAMP
When a vehicle experiences problems with the
headlamp system, verify the condition of the battery
connections, fuses, charging system, headlamp bulbs,
wire connectors, relay, high beam switch, dimmer
switch, and headlamp switch. Refer to the appropri-
ate wiring information.
Each vehicle is equipped with various lamp assem-
blies. A good ground is necessary for proper lighting
operation. Grounding is provided by the lamp socketwhen it comes in contact with the metal body, or
through a separate ground wire.
When changing lamp bulbs check the socket for
corrosion. If corrosion is present, clean it with a wire
brush.
When it is necessary to remove components to ser-
vice another, it should not be necessary to apply
excessive force or bend a component to remove it.
Before damaging a trim component, verify hidden
fasteners or captured edges are not holding the com-
ponent in place.
HEADLAMP DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
HEADLAMPS ARE DIM
WITH ENGINE IDLING
OR IGNITION TURNED
OFF.1. Loose or corroded battery
cables.1. Clean and secure battery cable clamps and
posts.
2. Loose or worn generator drive
belt.2. Adjust or replace generator drive belt.
3. Charging system output too low. 3. Test and repair charging system, refer to
Electrical, Charging
4. Battery has insufficient charge. 4. Test battery state-of-charge, refer to
Electrical, Battery System.
5. Battery is sulfated or shorted. 5. Load test battery, refer to Electrical, Battery
System.
6. Poor lighting circuit Z343/Z344-
ground.6. Test for voltage drop across Z343/Z344-
ground locations, refer to Electrical, Wiring
Diagram Information.
HEADLAMP BULBS
BURN OUT
FREQUENTLY.1. Integrated Power Module (IPM)
not controlling voltage.1. Test and repair Integrated Power Module.
2. Loose or corroded terminals or
splices in circuit.2. Inspect and repair all connectors and splices.
Refer to Electrical, Wiring Information.
HEADLAMPS ARE DIM
WITH ENGINE
RUNNING ABOVE IDLE.1. Charging system output too low. 1. Test and repair charging system, refer to
Electrical, Wiring Information.
2. Poor lighting circuit Z343/Z344-
ground.2. Test for voltage drop across Z343/Z344-
ground locations, refer to Electrical, Wiring
Information.
3. High resistance in headlamp
circuit.3. Test amperage draw of headlamp circuit.
RSLAMPS/LIGHTING - EXTERIOR8L-11

The compass unit will also compensate for magne-
tism the vehicle may acquire during normal use.
However, avoid placing anything magnetic directly on
the roof of the vehicle. Magnetic mounts for an
antenna, a repair order hat, or a funeral procession
flag can exceed the compensating ability of the com-
pass unit if placed on the roof panel. The use of mag-
netic tools on the fasteners that hold the overhead
console assembly to the roof header can also affect
compass operation. If the compass operation is
erratic and roof magnetization is suspected (Refer to
8 - ELECTRICAL/OVERHEAD CONSOLE - STAN-
DARD PROCEDURE - COMPASS DEMAGNETIZ-
ING).
DESCRIPTION - TEMPERATURE
All overhead consoles include temperature informa-
tion. The temperature displays the outside ambient
temperature in whole degrees. The temperature dis-
play can be toggled from Fahrenheit to Celsius by
selecting the desired U.S./Metric option from the cus-
tomer programmable features. The displayed temper-
ature is not an instant reading of conditions, but an
average temperature. It may take the temperature
display several minutes to respond to a major tem-
perature change, such as driving out of a heated
garage into winter temperatures.
When the ignition switch is turned to the Off posi-
tion, the last displayed temperature reading stays in
the electronic control modules (CMTC, EVIC) mem-
ory. When the ignition switch is turned to the On
position again, the electronic module will display the
memory temperature for one minute; then update the
display to the current average temperature reading
within five minutes.
The temperature function is supported by an ambi-
ent temperature sensor. The sensor is mounted near
the front and center of the vehicle, and is hard wired
to the Powertrain Control Module (PCM). The PCM
sends temperature status messages to the module
over the Programmable Communication Interface
(PCI) data bus circuit.
DIAGNOSIS AND TESTING
OVERHEAD CONSOLE
Any diagnosis of the overhead console should
begin with the use of the DRB IIItdiagnostic
tool. For information on the use of the DRB
IIIt, refer to the appropriate Diagnostic Proce-
dures information.If the problem with the overhead console is an
inaccurate or dashed (- -) display, refer to SELF-DI-
AGNOSTIC TEST. If the problem with the overhead
console is incorrect Vacuum Fluorescent Display
(VFD) dimming levels, use a DRB IIItscan tool and
the proper diagnostic procedures information to test
for the correct dimming message inputs being
received from the Body Control Module (BCM) or
Front Control Module (FCM) over the Programmable
Communications Interface (PCI) data bus circuit. If
the problem is a no-display condition, use the follow-
ing procedures.
Inspect the related wiring harness connectors for
broken, bent, pushed out, or corroded terminals.
Refer to the appropriate wiring information.
(1) Check the fused B(+) fuse in the integrated
power module. If OK, go to Step 2. If not OK, repair
the shorted circuit or component as required and
replace the faulty fuse.
(2) Check for battery voltage at the fused B(+) fuse
in the integrated power module. If OK, go to Step 3.
If not OK, repair the open fused B(+) circuit to the
fused B(+) fuse in the integrated power module as
required.
(3) Check the fused ignition switch output (run/
start) fuse in the integrated power module. If OK, go
to Step 4. If not OK, repair the shorted circuit or
component as required and replace the faulty fuse.
(4) Turn the ignition switch to the On position.
Check for battery voltage at the fused ignition switch
output (run/start) fuse in the integrated power mod-
ule. If OK, go to Step 5. If not OK, repair the open
fused ignition switch output (run/start) circuit to the
ignition switch as required.
(5) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Remove the overhead console. Check for continuity
between the ground circuit cavity of the roof wire
harness connector for the electronics module and a
good ground. There should be continuity. If OK, go to
Step 6. If not OK, repair the open ground circuit as
required.
(6) Connect the battery negative cable. Check for
battery voltage at the fused B(+) circuit cavity of the
roof wire harness connector for the electronics mod-
ule. If OK, go to Step 7. If not OK, repair the open
fused B(+) circuit to the fused B(+) fuse in the inte-
grated power module as required.
(7) Turn the ignition switch to the On position.
Check for battery voltage at the fused ignition switch
output (run/start) circuit cavity of the roof wire har-
ness connector for the electronics module. If OK,
refer to SELF-DIAGNOSTIC TEST. If not OK, repair
the open fused ignition switch output (run/start) cir-
cuit to the fuse in the integrated power module as
required.
RSOVERHEAD CONSOLE8M-3
OVERHEAD CONSOLE (Continued)

POWER LIFTGATE SYSTEM
DESCRIPTION
the components of the power liftgate system are:
²Liftgate gear motor assembly
²Latch assembly
²Lift gear and rod
²Power liftgate control module
²Chime/thermistor
²Full open switch
²Engage actuator
²Pinch sensor
²Liftgate handle switch
²Overhead console switch
²Key fob switches (Fig. 1)
²Pawl switch
²Ratchet switch
The power liftgate system has its own power lift-
gate control module, located on the vehicles left body
D-pillar behind the trim panel. The power liftgate
gear motor assembly is located just above the control
module. The latch assembly is located in the bottom
center of the power liftgate, below the exterior lift-
gate handle switch. The power liftgate full open
switch, engage actuator, lift gear and rod are part of
the liftgate gear motor assembly. The pawl and
ratchet switches are part of the latch assembly. The
pinch sensors are located along the right and left
sides of the power liftgate, just above the body line.The liftgate handle switch is a power release switch
and is located in the rear light bar assembly, just
above the license plate. The overhead console switch
is a power open and close command switch located in
the vehicles overhead console.
Software technology has enabled the power liftgate
control module to detect resistance to liftgate travel,
which allows the power liftgate to stop and reverse
direction anytime an obstruction is felt or any of the
command switches are operated (only in closing
direction). Battery voltage is supplied to the power
liftgate system through a 40 amp fuse, located in the
Integrated Power Module (IPM) assembly. If the
power liftgate system develops a fault, the power lift-
gate can still be operated manually with a key, sim-
ilar to a manual liftgate.
The power liftgate control module communicates
on the Programmable Communication Interface (PCI)
Bus Circuit. Therefore, the power liftgate control
module can generate and store its own Diagnostic
Trouble Codes (DTC). The vehicles Body Control
Module (BCM) receives and supplies messages to the
power liftgate control module via the PCI bus circuit.
A diagnostic scan tool, such as the DRB IIItor equiv-
alent, is used to read and troubleshoot these DTCs.
Refer to the Body Diagnostic Manual for a complete
list of diagnostic routines.
For additional information, (Refer to 8 - ELECTRI-
CAL/POWER DOORS - OPERATION). Refer to the
appropriate wiring information for complete circuit
schematic or connector pin-out information.
WARNING: BE CERTAIN TO READ ALL WARNINGS
AND CAUTIONS BEFORE ATTEMPTING ANY SER-
VICE OF THE POWER LIFTGATE SYSTEM OR COM-
PONENTS.
OPERATION
With the push of a power liftgate open/close com-
mand switch (key fob or overhead console mounted) a
signal is sent out on the Programmable Communica-
tion Interface (PCI) Data Bus circuit. This signal is
detected at the Body Control Module (BCM). The
BCM then sends a signal out on the PCI Data Bus
circuit to the power liftgate control module. The
power liftgate control module then signals the power
liftgate motor to start an open or close cycle, depend-
ing on what position the liftgate is in.
During a liftgate open or close cycle, if the power
liftgate module detects sufficient resistance to liftgate
travel, such as an obstruction in the path of the lift-
gate, the power liftgate control module will immedi-
ately stop the liftgate movement and reverse travel
to the full open or closed position. The ability for the
power liftgate module to detect resistance to liftgate
Fig. 1 KEY FOB
1 - LEFT SLIDING DOOR SWITCH
2 - RIGHT SLIDING DOOR SWITCH
3 - LIFTGATE SWITCH
8N - 2 POWER LIFTGATE SYSTEMRS

LIFTGATE SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
Liftgate opens unexpectedly Inoperative Power Liftgate Module or
Body Control Module (BCM)Disconnect then reconnect the battery
negative cable to reset module. Cycle the
power liftgate, if the power liftgate is still
not operating properly check for loose wire
connections, refer to the appropriate
diagnostic information
Inoperative latch assembly Check for blown fuse and loose wiring
connections
Check for Diagnostic Trouble Codes
(DTCs), replace latch as necessary
Inoperative open/close command
switchCheck for shorted or inoperative switch.
Replace switch as necessary
Liftgate will not open from
outside of vehicle manuallyInoperative key cylinder assembly Check for inoperative key cylinder
assembly. Replace key cylinder as
necessary
Check link rod connections at the latch and
key cylinder assembly
Check for binds or kinks in link rod
Check for foreign matter preventing the
operation of key cylinder assembly
Replace the components as necessary
Inoperative latch assembly Check for blown fuse and loose wiring
connections
Check for foreign matter preventing the
operation of latch assembly
Replace latch assembly as necessary
Binding or sticking of components Check for foreign matter preventing the
operation of door
Establish location of binding
Replace the components as necessary
Liftgate will not open/close
under powerInoperative Power Liftgate Module or
BCMDisconnect then reconnect the battery
negative cable to reset module. Cycle the
power liftgate, if the power liftgate is still
not operating properly check for loose wire
connections, refer to the appropriate
diagnostic information
Inoperative latch assembly Check for blown fuse and loose wiring
connections
Check for foreign matter preventing the
operation of latch assembly
Refer to the appropriate diagnostic
information. Replace latch assembly as
necessary
8N - 4 POWER LIFTGATE SYSTEMRS
POWER LIFTGATE SYSTEM (Continued)

CONDITION POSSIBLE CAUSES CORRECTION
Inoperative motor assembly Refer to the appropriate diagnostic
information.
Inoperative full open switch Refer to the appropriate diagnostic
information.
Binding or sticking of components Establish location of binding and replace
components as necessary
Power loss during Liftgate
operationLow battery voltage Charge battery
Inoperative Power Liftgate Module or
BCMDisconnect then reconnect the battery
negative cable to reset module. Cycle the
power liftgate, if the power liftgate is still
not operating properly check for loose wire
connections, refer to the appropriate
diagnostic information
Inoperative motor assembly Check for no drive condition
No power latching in
primary and/or secondary
positionsInoperative latch assembly Check for blown fuse and loose wiring
connections
Check for foreign matter preventing the
operation of latch assembly
Refer to the appropriate diagnostic
information. Replace latch assembly as
necessary
Binding or sticking of components Establish location of binding and replace
components as necessary
Inoperative Power Liftgate or BCM Disconnect then reconnect the battery
negative cable to reset module. Cycle the
power liftgate, if the power liftgate is still
not operating properly check for loose wire
connections, refer to the appropriate
diagnostic information
Door seal force too high Inspect seals for damage, mis-assembly,
foreign matter or other possible obstruction
Inoperative motor assembly Check for no drive condition
Latch will not fully release
from primary positionInoperative latch assembly Check for blown fuse and loose wiring
connections
Check for foreign matter or damaged
components preventing the operation of
latch assembly
Refer to the appropriate diagnostic
information. Replace latch assembly as
necessary
Inoperative outside handle switch Refer to the appropriate diagnostic
information. Replace switch as necessary
RSPOWER LIFTGATE SYSTEM8N-5
POWER LIFTGATE SYSTEM (Continued)

CONDITION POSSIBLE CAUSES CORRECTION
Inoperative Power Liftgate Module or
BCMDisconnect then reconnect the battery
negative cable to reset module. Cycle the
power liftgate, if the power liftgate is still
not operating properly check for loose wire
connections, refer to the appropriate
diagnostic information
Binding or sticking of components Establish location of binding and replace
components as necessary
Key fob, Outside Handle or
overhead console switches
do not power operate
liftgateBlown Fuse Check fuse and replace
Battery voltage low Charge or replace battery in key fob or
vehicle
Inoperative latch assembly Check for foreign matter preventing the
operation of latch assembly
Check wire connection
Pawl and/or ratchet switch inoperative.
Replace latch as necessary
Inoperative BCM Check electrical connections
Refer to the appropriate diagnostic
information for additional checks
Replace BCM as necessary
Inoperative key fob Verify inoperative key fob by trying other
key fob functions
Replace key fob battery
Reprogram key fob
Replace key fob as necessary
Inoperative Power Liftgate Module Disconnect then reconnect the battery
negative cable to reset module. Cycle the
power liftgate, if the power liftgate is still
not operating properly check for loose wire
connections, refer to the appropriate
diagnostic information
Inoperative liftgate motor assembly Check for foreign matter preventing the
operation of gear motor assembly
Check wire connections
Motor clutch does not engage. Replace
liftgate motor assembly
Full open switch inoperative, replace switch
as necessary
Liftgate does not stay open Inoperative liftgate prop rods Check for broken attachments. Replace
prop rods as necessary
High inside/outside opening
effortInoperative liftgate prop rods Check for broken attachments. Replace
prop rods as necessary
8N - 6 POWER LIFTGATE SYSTEMRS
POWER LIFTGATE SYSTEM (Continued)