service interval reset DODGE RAM 2001 Service Repair Manual

turn on the seatbelt indicator for the following rea-
sons:
²Seatbelt Reminder Function- Each time the
cluster receives a battery current input on the fused
ignition switch output (st-run) circuit, the indicator
will be illuminated as a seatbelt reminder for about
seven seconds, or until the ignition switch is turned
to the Off position, whichever occurs first. This
reminder function will occur regardless of the status
of the seatbelt switch input to the cluster.
²Driver Side Front Seatbelt Not Buckled-
Following the seatbelt reminder function, each time
the cluster receives a ground input on the seat belt
switch sense circuit (seatbelt switch closed - seatbelt
unbuckled) with the ignition switch in the Start or
On positions, the indicator will be illuminated. The
seatbelt indicator remains illuminated until the seat
belt switch sense input to the cluster is an open cir-
cuit (seatbelt switch opened - seatbelt buckled), or
until the ignition switch is turned to the Off position,
whichever occurs first.
²Actuator Test- Each time the cluster is put
through the actuator test, the indicator will be
turned on during the bulb check portion of the test to
confirm the functionality of the LED and the cluster
control circuitry.
The seatbelt switch input to the instrument cluster
circuitry can be diagnosed using conventional diag-
nostic tools and methods. For further diagnosis of the
seatbelt indicator or the instrument cluster circuitry
that controls the LED, (Refer to 8 - ELECTRICAL/
INSTRUMENT CLUSTER - DIAGNOSIS AND
TESTING).
SERVICE REMINDER
INDICATOR
DESCRIPTION
A Service Reminder Indicator (SRI) is standard
equipment on all instrument clusters. However, on
vehicles not equipped with certain optional heavy
duty emission cycle gasoline engines, this indicator is
electronically disabled. The SRI is located near the
lower edge of the instrument cluster overlay, to the
left of center. The SRI consists of a stencilled cutout
of the words ªMAINT REQDº in the opaque layer of
the instrument cluster overlay. The dark outer layer
of the overlay prevents the indicator from being
clearly visible when it is not illuminated. An amber
lens behind the cutout in the opaque layer of the
overlay causes the ªMAINT REQDº text to appear in
amber through the translucent outer layer of the
overlay when the indicator is illuminated from
behind by a Light Emitting Diode (LED) soldered
onto the instrument cluster electronic circuit board.The SRI is serviced as a unit with the instrument
cluster.
OPERATION
The Service Reminder Indicator (SRI) gives an
indication to the vehicle operator when engine emis-
sions maintenance procedures should be performed.
This indicator is controlled by a transistor on the
instrument cluster circuit board based upon the clus-
ter programming and electronic messages received by
the cluster from the Powertrain Control Module
(PCM) over the Chrysler Collision Detection (CCD)
data bus. The SRI Light Emitting Diode (LED)
receives battery current on the instrument cluster
electronic circuit board through the fused ignition
switch output (st-run) circuit whenever the ignition
switch is in the On or Start positions; therefore, the
LED will always be off when the ignition switch is in
any position except On or Start. The LED only illu-
minates when it is provided a path to ground by the
instrument cluster transistor. The instrument cluster
will turn on the SRI for the following reasons:
²Bulb Test- Each time the ignition switch is
turned to the On position the SRI is illuminated for
about two seconds as a bulb test.
²Service Required Lamp-On Message- Each
time the cluster receives a service required lamp-on
message from the PCM indicating that an emissions
maintenance interval has been reached, the SRI will
be illuminated. The indicator remains illuminated
until the cluster receives a service required lamp-off
message from the PCM, or until the ignition switch
is turned to the Off position, whichever occurs first.
²Actuator Test- Each time the cluster is put
through the actuator test, the SRI will be turned on
during the bulb check portion of the test to confirm
the functionality of the LED and the cluster control
circuitry.
The PCM continually monitors the vehicle speed
sensor to determine the distance the vehicle has been
driven, then sends the proper messages to the instru-
ment cluster. Once the SRI has been illuminated and
the required emissions maintenance procedures have
been completed, the PCM must be reset using a
DRBIIItscan tool before it will send the proper ser-
vice required lamp-off message to the instrument
cluster. Refer to the appropriate diagnostic informa-
tion. For further diagnosis of the SRI or the instru-
ment cluster circuitry that controls the LED, (Refer
to 8 - ELECTRICAL/INSTRUMENT CLUSTER -
DIAGNOSIS AND TESTING). For proper diagnosis
of the PCM, the CCD data bus, or the message
inputs to the instrument cluster that control the SRI,
a DRBIIItscan tool is required. Refer to the appro-
priate diagnostic information.
8J - 28 INSTRUMENT CLUSTERBR/BE
SEATBELT INDICATOR (Continued)

Remote Keyless Entry (RKE). The horn chirps when
the vehicle is locked with the RKE transmitter.
HEADLAMP FLASH
NOTE: This feature can be enabled with or without
the horn chirp feature.
The headlamp flash function is a feature that can
be enabled or disabled on vehicles equipped with
Remote Keyless Entry (RKE). The headlamps flash
once when the vehicle is locked with the RKE trans-
mitter, and flash twice when the vehicle is unlocked
with the RKE transmitter.
LOW FUEL CHIME
All vehicles equipped with the audible low fuel
chime are shipped with this feature enabled.
REMOTE KEYLESS ENTRY (RKE) DOOR UNLOCK
SEQUENCE
Two door unlock sequences are provided on vehi-
cles equipped with this feature. When using the RKE
transmitter to unlock the doors, pressing the unlock
button once when the feature is enabled unlocks only
the driver's door. Pushing the RKE transmitter
unlock button a second time unlocks the remaining
doors. When the RKE door unlock feature is disabled,
all doors unlock with one press of the RKE transmit-
ter unlock button.
HEADLIGHTS ON AUTOMATICALLY WITH WIPERS
This feature appears on vehicles that have, as an
option, automatic headlights. When the windshield
wipers are turned on, the headlights automatically
turn on.
12V POWER OUTLET
This feature currently appears on Caravan/Voyag-
er/Town and Country vehicles. The vehicles are
shipped with the 12V power outlets turned off with
the ignition key. The relay can be changed to make
the outlets powered at all times. This feature may be
of interest to customers with cell phones.
TURN SIGNAL CHIME
This feature is an audible turn signal warning
chime. The chime sounds if the turn signal is on, the
vehicle has traveled one mile and vehicle speed has
exceeded 40 Km/h (25 mph).
REMOTE UNLOCK
The remote unlock function is a feature that can be
enabled or disabled on vehicles equipped with
Remote Keyless Entry (RKE). With the first press of
the RKE transmitter to unlock the doors, the driver's
door only unlocks. With the second press of the RKEtransmitter, the remaining doors and the liftgate
unlock. With the remote unlock feature enabled, the
first press of the RKE transmitter unlocks all doors.
REMOTE LINKED TO MEMORY
The remote linked to memory function is currently
only available only on Jeep Grand Cherokee Limited
vehicles. When enabled, this feature recalls a mem-
ory of seats, mirror and radio presets and positions
when unlocking the vehicle with the RKE transmit-
ter.
HEADLAMP DELAY
Currently available only on Jeep Grand Cherokee
vehicles, the headlamp delay timeout can be set to
30, 60 or 90 seconds. This timeout only occurs when
the ignition is turned off prior to turning the head-
lamps off, or when leaving the headlamps in AUTO
mode.
SERVICE INTERVAL
Currently available only on Jeep Grand Cherokee
vehicles, the interval for the service reminder mes-
sage can be set from 3,219 kilometers to 12,070 kilo-
meters (2,000 miles to 7,500 miles).
EASY EXIT SEAT
Currently available only on Jeep Grand Cherokee
Limited vehicles, the driver's seat will reposition
55mm (2.1 inches) rearward, or the end of travel if
less than 55mm (2.1 inches) and full downward when
the key is removed from the ignition. This feature
allows ease of exiting the vehicle. The seat will repo-
sition itself to the memory location when the vehicle
is unlocked using the RKE transmitter or by pressing
the memory buttons on the door panel.
APPEARANCE TIPS
CLEANING
(1) Before delivering the new vehicle to the cus-
tomer, the following checks on appearance details are
recommended:
²Wash the vehicle to remove all traces of road
grime and other dirt on the car from new vehicle
preparation operations
²Clean the tire sidewalls
²Clean exterior and interior glass surfaces
²Remove all protective covers
²Remove undercoat overspray, excess window
sealer, and excess weatherstrip adhesive
²Inspect interior trim, seats, carpeting, and mold-
ings. Clean as necessary
²Remove shipping and inspection stickers
BR/BENEW VEHICLE PREPARATION 30 - 21
PROGRAMMABLE ELECTRONIC FEATURES (Continued)