Grand Caravan V6-3.8L (2009)
The no fuse indicator is serviced as a unit with the odometer VFD unit in the instrument cluster.
No Fuse Indicator - Operation
OPERATION
The no fuse indicator gives an indication to the vehicle operator when the Ignition Off Draw (IOD) fuse is ineffective or is not installed. This indicator is
controlled by the instrument cluster logic circuit based upon cluster programming and electronic messages received over the Controller Area Network
(CAN) data bus from the Totally Integrated Power Module (TIPM).
The no fuse indicator function of the odometer Vacuum Fluorescent Display (VFD) unit is completely controlled by the instrument cluster logic circuit,
and that logic will only allow this indicator to operate when the instrument cluster receives a battery current input on the fused ignition switch output
(run-start) circuit. Therefore, the odometer VFD no fuse indication will always be OFF when the ignition switch is in any position except ON or START.
The instrument cluster will turn ON the no fuse indicator for the following reasons:
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No Fuse Indicator Lamp-On Message - Each time the ignition switch is turned to the ON position and the cluster does not receive battery
voltage from the IOD fuse, a no fuse indicator lamp-ON indicator will be illuminated. The indicator remains illuminated for about three seconds,
until the IOD fuse is installed, until the trip odometer reset switch button is depressed or until the ignition switch is turned to the OFF position,
whichever occurs first.
The TIPM continually monitors the IOD circuit to determine the status of the IOD fuse. The TIPM then sends the proper lamp-ON or lamp-OFF
message to the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN).
For proper diagnosis of the no fuse indicator, the TIPM, the EMIC, the CAN data bus or the electronic communication related to no fuse indicator
operation a diagnostic scan tool is required. Refer to the appropriate diagnostic information.
Electronic Vehicle Information Center - Description
DESCRIPTION
The Electronic Vehicle Information Center (EVIC) features a driver-interactive display (23). The display is located in the lower left part of the
instrument cluster below the speedometer (3).
The display in the lower right part of the instrument cluster (13) below the tachometer (11) shows the vehicle odometer related functions. These
functions include Trip Odometer (ODO), Trip A and Trip B readouts. The instrument cluster right push-button can be used to scroll through the different
odometer functions. See: Instrument Panel, Gauges and Warning Indicators/Instrument Cluster / Carrier/Description and Operation/Instrument Cluster -
Description for additional information on the instrument cluster and related functions.
