Dodge Ram Truck 1500-2500-3500. Manual - part 490

REMOVAL

WARNING: The Excessive Force Limitation (EFL) feature must be calibrated any time a sunroof motor/mod-
ule is replaced with a new component. Failure to perform this procedure could result in vehicle damage
and/or personal injury. (Refer to 8 - ELECTRICAL/POWER TOP/MOTOR - STANDARD PROCEDURE - EXCES-
SIVE FORCE LIMITATION (EFL) CALIBRATION) for the appropriate procedure.

1. Disconnect the battery negative cable.

2. Remove the vehicle headliner, (Refer to 23 - BODY/INTERIOR/HEADLINER - REMOVAL).

3. Remove the power sunroof motor/module electrical

connector (2).

4. Remove the retaining screws (3) and remove the

motor/module (1) from the vehicle.

INSTALLATION

1. Position the power sunroof motor/module (1) in the

vehicle.

2. Install

the

motor/module

retaining

screws

(3).

Tighten the screws to 4 N·m (35 in. lbs.).

3. Connect the motor/module electrical connector (2).

4. Connect the battery negative cable and move the

sunroof through one open and close cycle to con-
firm proper system operation.

5. Install the vehicle headliner, (Refer to 23 - BODY/

INTERIOR/HEADLINER - INSTALLATION).

6. Perform the sunroof position calibration, (Refer to 8

- ELECTRICAL/POWER TOP/MOTOR - STAN-
DARD

PROCEDURE

SUNROOF

POSITION

CALIBRATION).

7. Perform the Excessive Force Limitation (EFL) cali-

bration, (Refer to 8 - ELECTRICAL/POWER TOP/
MOTOR

STANDARD

PROCEDURE

EXCESSIVE FORCE LIMITATION (EFL) CALIBRA-
TION).

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POWER TOP - SUNROOF - SERVICE INFORMATION

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8. Verify proper operation of the power sunroof system.

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

For complete circuit diagrams, refer to the appropriate wiring information. The wiring information includes wir-
ing diagrams, 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 appropriate diagnostic information results in the sunroof switch being inoperative, perform the following test prior
to switch replacement.

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POWER TOP - SUNROOF - SERVICE INFORMATION

8N - 103

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

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POWER TOP - SUNROOF - SERVICE INFORMATION

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POWER WINDOWS - SERVICE INFORMATION

TABLE OF CONTENTS

page

POWER WINDOWS - SERVICE INFORMATION

DESCRIPTION

. . . . . . . . . . . . . . . . . . . . . . . . 105

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . 105

DIAGNOSIS AND TESTING

POWER WINDOWS

. . . . . . . . . . . . . . . . . . . 105

SWITCH - WINDOW

DIAGNOSIS AND TESTING

WINDOW SWITCH

. . . . . . . . . . . . . . . . . . . . 106

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . 107

POWER WINDOWS - SERVICE INFORMATION

DESCRIPTION

The power window system allows each of the door windows to be raised and lowered electrically by actuating a
switch on each door panel. A master switch on the drivers door allows the driver to raise or lower each of the
passenger door windows and to lock out the individual switches on the passenger doors from operation. The power
window system receives battery feed through a fuse in the Integrated Power Module (IPM) and a circuit breaker
located in the instrument panel wiring harness near the park brake pedal, only when the ignition switch is in the
RUN or ACCESSORY position.

The window motors are replaced with the window regulator assembly. If the window motors require replacement, the
window regulator must be replaced.

OPERATION

WINDOW SWITCH

The power window switches control the battery and ground feeds to the power window motors. The passenger door
power window switches receive their battery and ground feeds through the circuitry of the drivers window switch.
When the power window lockout switch is in the Lock position, the battery feed for the passenger door window
switches is interrupted.

WINDOW MOTOR

Window motors use permanent type magnets. The B+ and ground applied at the motor terminal pins will cause the
motor to rotate in one direction. Reversing current through the motor terminals will cause the motor to rotate in the
opposite direction.

DIAGNOSIS AND TESTING

POWER WINDOWS

WIRING VOLTAGE TEST

The following wiring test determines whether or not voltage is continuous through the body harness to the front
switch.

Refer to the appropriate wiring information.

1. Remove the window/lock switch (Refer to 8 - ELECTRICAL/POWER LOCKS/DOOR MODULE - REMOVAL).

2. Disconnect wire connector from back of switch.

3. Switch ignition to the ON position.

4. Connect the clip end of a 12 volt test light to Pin 14 of the window switch harness connector. Touch the test light

probe to Pin 10.

•

If the test light illuminates, the wiring circuit between the battery and switch is OK.

•

If the lamp does not illuminate, first check the fuse in the Integrated Power Module (IPM). Check the circuit
breaker located near the park brake pedal. If fuse and circuit breaker are OK, then check for a broken wire.

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POWER WINDOWS - SERVICE INFORMATION

8N - 105

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