Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 632

SWITCH - SUNROOF

DESCRIPTION

The power sunroof switch (3) is a combination push-
button and rocker switch module mounted in the over-
head console. The sunroof switch is a direct contact
unit that is directly wired to the sunroof motor/module
assembly. The sunroof switch performs the following
functions:

•

Power sunroof open (back of switch pushed)

•

Power sunroof closed (front of switch pushed)

•

Power

sunroof

vent

(switch

center

button

pushed)

The power sunroof switch is part of the overhead
console assembly and cannot be replaced sepa-
rately. If the switch is damaged or inoperative the
overhead console must be replaced, (Refer to 8 -
ELECTRICAL/OVERHEAD CONSOLE - REMOVAL).

OPERATION

The power sunroof switch is hard wired to the sunroof motor/module assembly. The switch receives battery current
from the motor/module when the ignition switch is in the RUN and ACCESSORY positions or the vehicle Accessory
Delay System is active. When one of the switch positions is pressed it sends battery current back to the motor/
module, signaling it to move the power sunroof to the appropriate position. The motor/module will perform one of the
following functions:

•

Power sunroof open (back of switch pushed)

•

Power sunroof closed (front of switch pushed)

•

Power sunroof vent (switch center button pushed)

DIAGNOSIS AND TESTING

SWITCH - POWER SUNROOF

Any diagnosis of the power sunroof system should begin with the use of a scan tool and the proper Diagnostic
Procedures Information. The scan tool can provide confirmation that the Controller Area Network (CAN) Data Bus
circuit is functional, that all of the electronic modules are sending and receiving the proper messages on the CAN
Data Bus, and that the power sunroof motor/module assembly is being sent the proper hard wired output by the
sunroof switch.

For complete circuit diagrams, refer to the appropriate wiring information. The wiring information includes wiring dia-
grams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out
information and location views for the various wire harness connectors, splices and grounds. If completing the

8N - 226

POWER TOP - SUNROOF SERVICE INFO

appropriate diagnostic information results in the sunroof switch being inoperative, perform the following test prior to
switch replacement.

1. Disconnect and isolate the battery negative cable.

2. Remove the overhead console, (Refer to 8 - ELEC-

TRICAL/OVERHEAD CONSOLE - REMOVAL).

3. Disconnect the power sunroof switch wire harness

connector.

4. Using an ohmmeter, test the continuity of the

power sunroof switch in each switch position. Refer
to the POWER SUNROOF SWITCH CONTINUITY
TABLE . If OK, inspect the wiring harness and con-
nectors for damage. Use a scan tool and the
proper Diagnostic Procedures Information to com-
plete diagnosis of the power sunroof system. If not
OK, replace the overhead console.

POWER SUNROOF SWITCH CONTINUITY TABLE

SWITCH POSITION

CONTINUITY BETWEEN PINS

OFF

NO CONTINUITY

SUNROOF OPEN

B & D

SUNROOF CLOSED

B & C

SUNROOF VENT

B & A

POWER TOP - SUNROOF SERVICE INFO