PCI Bus Indicators

PCI BUS INDICATORS
The following indicators are internally controlled by the Instrument Cluster using information received from PCI Bus messages. These indicators are only operational when the ignition is in the Run/Start position.

Air Bag Warning Indicator
* Illuminates when cluster receives PCI Bus data request from the Airbag Control Module (ACM).
* The cluster performs an indicator check each time indicator is commanded ON or OFF If an open lamp or short fault is detected by the cluster, the fault will be sent to the ACM over the PCI Bus.
* Non-replaceable LED.

Malfunction Indicator Lamp (ISO Engine Icon)
* Illuminates or blinks when cluster receives PCI Bus data request from the PCM.
* Non-replaceable LED.
* The PCM can command the cluster to display P-codes in the Vacuum Fluorescent (VF) display. The cluster will not display these codes if a RPM message greater than 0 (zero) is received. The displaying of P-codes will take priority over any Vehicle Status messages in the VF display.

Check Gauges
* Illuminates when cluster receives PCI Bus data from the PCM.
* Illuminates for engine temperature high and engine temperature critical.
* Illuminates for oil pressure low.
* Illuminates for charging system fault.
* GNon-replaceable LED.

Cruise
* Illuminates when the cluster receives PCI Bus data request from the PCM.
* Represents the status of the Cruise Control being turned ON (not the setting of the cruise control speed).
* Non-replaceable LED.

Low Fuel
* Illuminates internally from a calibration in the cluster EEPROM.
* The cluster illuminates the indicator when the remaining fuel is approximately between 1/8 and E as displayed by the Fuel gauge.
* If the cluster receives PCI Bus data indicating a fuel level sensor error, the cluster will position the gauge pointer needle to the E position and illuminate the Low Fuel indicator.
* Non-replaceable LED.

SKIM (If Equipped)
* Illuminates when the cluster receives PCI Bus data from the SKIM module.
* The SKIM module can command the indicator to illuminate or flash.
* Non-replaceable LED.

Upshift (If Equipped)
* Illuminates when the cluster receives PCI Bus data request from the PCM.
* Indicator operates in U.S. and Canadian clusters only.
* Non-replaceable LED.