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RS
EXTERIOR HANDLE SWITCH (Continued)
Fig. 14 REAR LIGHT BAR
1 - CHIME / THERMISTOR
2 - ELECTRIC RELEASE HANDLE SWITCH
3 - LICENSE PLATE LAMPS
(6) Using an appropriate scan tool, check any
erase any power liftgate control module diagnostic
trouble codes.
(7) Verify power liftgate system and handle switch
operation. Cycle the power liftgate through one com-
plete open and close cycle, this will allow the power
liftgate control module to relearn its cycle with the
new components.
CHIME/THERMISTOR
DESCRIPTION
Vehicles equipped with a power liftgate utilize a
chime/thermistor assembly. The chime/thermistor
assembly is a small capacitor shaped electrical com-
ponent mounted to the rear license plate lamp hous-
ing assembly (Fig. 15) , located just above the license
plate. The chime portion of the assembly controls the
audible chime sound heard at the rear of the vehicle
when the power liftgate is in motion. The thermistor
portion of the assembly is a temperature sensor, used
by the power liftgate module.
The chime/thermistor assembly is a serviceable
component. Consult your Mopar™ parts catalog for a
specific part number.
OPERATION
The chime/thermistor assembly performs two dif-
ferent functions for the power liftgate system. First,
the chime portion provides an audible chime sound
which is controlled by the power liftgate module. The
POWER LIFTGATE SYSTEM
chime/thermistor assembly is hardwired to the power
liftgate module. Second the thermistor provides a
outside temperature reading by way of a resistance
reading (
- ohms) supplied to the power liftgate
module. As temperature increases the resistance
reading (
- ohms) increases , as temperature
decreases
the
resistance
decreases.
REMOVAL
(1) Disconnect and isolate the negative battery
cable.
(2) Remove the rear light bar assembly from the
vehicle. Refer to Body for the procedure.
(3) Using your hands, grasp the light bar at its
sides next to thermistor/chime assembly and gently
pull the two sides of the light bar apart until the
thermistor/chime assembly can be removed.
INSTALLATION
(1) Gently pull the two sides of the light bar apart
until the thermistor/chime assembly can be installed.
(2) Install the rear light bar assembly on the vehi-
cle. Refer to the Body section of the service manual
for the procedure.
(3) Connect the negative battery cable.
Fig. 15 REAR LIGHT BAR
1 - CHIME / THERMISTOR
2 - ELECTRIC RELEASE HANDLE SWITCH
3 - LICENSE PLATE LAMPS
8N - 17
reading
(
-
ohms)
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