Grand Caravan V6-3.3L VIN R (2005)
mileage. This button is also used to put the cluster into self-diagnostic mode. The odometer display uses blue-green vacuum fluorescent
digital characters.
On base models, the Instrument Cluster has three gauges: Speedometer, fuel and temperature.A red dot appears through openings in the Instrument
Cluster face (P-R-N-D-2-1) to indicate the gear selected.
With other models, the Instrument Cluster may also include a tachometer and use a vacuum fluorescent shift indicator.
The high-line Instrument Cluster features Electroluminescent Illumination of the gauge faces (EL Panel). This feature eliminates the use of bulbs for
,gauge/panel lighting. In a manner similar to fluorescent lights, a/c voltage from an inverter integrated circuit chip is applied to the phosphorescent
material, causing it to glow. The phosphorescent material is screen-printed onto flexible Mylar sheets that form the gauge faces.
The odometer display and door/liftgate ajar indicators turn on when a door is opened to assist both the customer and service technician to view the
odometer without turning the ignition on.
On models with AutoStick, the display includes an O/D OFF indicator that is illuminated when the driver presses the Overdrive Off button on the
transaxle shifter.
INSTRUMENT CLUSTER SELF TEST
1. Depress and hold the Odometer Reset button.
2. Turn the ignition switch to on.
3. Release the Odometer reset button.
The Instrument Cluster will illuminate all indicators and step the gauges through several calibration points.Also, the odometer will display any stored
codes that may have set.
Interior Lighting
COURTESY LAMP CONTROL
The body controller has direct control over all of the vehicle's courtesy lamps. The body computer will illuminate the courtesy lamps under any of the
following conditions:
1. Any door ajar and courtesy lamp switch on the headlamp switch is not in the dome off position.
2. The courtesy lamp switch on the headlamp switch is in the dome on position.
3. A Remote Keyless Entry unlock message is received.
4. Driver door unlocked with key (with VTSS only).
ILLUMINATED ENTRY
Illuminated entry will be initiated when the customer enters the vehicle by unlocking the doors with the key fob, or with the key if the vehicle is equipped
with vehicle theft alarm. Upon exiting the vehicle, if the lock button is pressed with a door open, illuminated entry will cancel when the door closes. If
the doors are closed and the ignition switch is turned on, the illuminated entry also cancels. The illuminated entry feature will not operate if the courtesy
lamp switch is in the dome off position.
INTERIOR LIGHTING BATTERY SAVER
If any of the interior lamps are left on after the ignition is turned off, the BCM will turn them off after 8 minutes. To return to normal operation, the
courtesy lamps will operate after the dome lamp switch or door ajar switch changes state. The glove box and switched reading lamps require that the
ignition be turned to the on/acc position.
Memory System
The memory system consists of power driver's seat, power mirror, adjustable pedals and radio presets. The Memory Seat/Mirror/Adjustable Pedals
Module (MSMAPM) is located under the driver's seat. It receives input from the following: driver's manual 8-way seat switch, driver's seat position
sensors, PCI bus circuits, and the power mirror sensors. The module uses these inputs to perform the following functions: position the driver's memory
seat, both exterior mirrors (during recalls), both pedals, and send/receive the memory system information over the PCI bus.
The Memory Set Switch is wired to the Body Control Module (BCM). A button (either #1 or #2) pressed on the set switch causes the BCM to send a
message to the MSMAPM which in turn will send a motion status message back to the BCM. If the message from the MSMAPM indicates no current
motion, the BCM will send a recal message to the module. The MSMAPM will set the seat, exterior mirror, pedals, and radio to the presets for the
indicated driver.
If any one of the memory controlled systems is inoperative from its manual switch, use the schematics and diagnostic information to correct the concern.
This manual addresses the memory problems only and it is assumed there is not a basic component failure.
POWER SEAT
The memory power seat provides the driver with 2 position settings for the driver's seat. Each power seat motor is connected to the MSMAPM with two
motor drive circuits. Each circuit is switched between battery and ground. By being able to bidirectionally drive the circuits, the MSMAPM controls the
