body control module

The 2000 MY Neon does not use a Body Control Module (BCM).. The instrument cluster controls the courtesy lamps, it receives and sends messages to other modules via the PCI bus circuit, it controls all the instrument illumination and the chime is also an integral part of the cluster. The front turn signals are wired through the cluster and then go to the front lamps. The reason being that the DRL module is built into the cluster (if equipped). All gauges in the electronic clusters are the analog type gauges. When the ignition switch is moved to the OFF position, the cluster drives each gauge to its lowest position. The individual gauges are not serviceable and require complete replacement of the cluster if one or more gauges are inoperable. One button is used to switch the display from trip to total mileage. Holding the button when the display is in the trip mode will reset the trip mileage. This button is also used to put the cluster in self-diagnostic mode. Refer to Electrical, Instrument Cluster, Standard Procedures- Cluster Self-Diagnostics. Most of the indicators will come on briefly for a bulb heck whiln the ignition is turned from OFF to ON. All of the LED's are replaceable The cluster calculates the appropriate odometer mileage based on PCI bus information received from the PCM. The VF display also displays the “Door”, “Trac”, and “Cruise” messages. If the instrument cluster experiences a loss of communication with the PCI bus, the cluster will display “no buS” in the display. If the cluster determines that there is not 8.0 volts at the battery input, then the cluster shall alternately display “FUSE” and the odometer mileage. In the event that the instrument cluster looses communication with all other modules on the PCI bus, the cluster will display “nobuS” in the VF display. If the cluster does not detect voltage on the courtesy lamp circuit, the message “FUSE” will alternate with the odometer/trip odometer for 30 seconds after the ignition is turned on and for 15 seconds after the vehicle is first moved. The lack of voltage can be due to the M1 Fused B(+) (IOD) fuse being open, a bad or missing courtesy lamp bulb, or a circuit problem.