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Does the cluster still do the function check @ ignition on?
STANDARD INSTRUMENT CLUSTER
Standard instrument cluster is available in 3 types depending on model. All clusters are electro-mechanical type, receiving most of their information from Body Control Module or Timing Control Module via Chrysler Collision Detection (CCD) bus. Instrument cluster consists of speedometer, odometer/trip odometer, tachometer, fuel gauge, temperature gauge and gear selector indicator. Gauges are magnetic air-core type.
When ignition is off, gauge pointers should rest at or below the low graduation. Gauge readings are accurate ONLY when ignition switch is in ON position.
Message center module displays various warnings. Module contains a graphic symbol warning light for indicating problem areas on vehicle. Lights include low washer fluid, door and trunk ajar, anti-lock brake, and traction control off or activated (if equipped).
WARNING & INDICATOR LIGHTS
Warning and indicator lights include air bag, brake/parking brake, charging system voltage, cruise, high beam, high temperature, low fuel, low oil pressure, Malfunction Indicator Light (MIL) or check engine light, seat belt and turn signals.
Brake warning indicator will light when parking brake is applied, brake fluid is low in reservoir, hydraulic system fails, ABS indicator light malfunctions or ABS system fails.
WARNING:Vehicle is equipped with an air bag system. To prevent air bag deployment, disconnect negative battery cable and wait at least 2 minutes before servicing instrument cluster. See appropriate AIR BAG RESTRAINT SYSTEM article.
NOTE:Testing of the instrument panel and gauges requires using a scan tool to check circuits connected to the Body Control Module (BCM). See VEHICLE COMMUNICATIONS article and BODY CONTROL COMPUTER article.
As a quick diagnosis, instrument cluster will perform a function check immediately after ignition is switched to RUN/START position. Electronic display, odometer/transmission range indicator and all warning lights EXCEPT low fuel, cruise, high beam, fog lamps and turn signal will light for a brief period.
If cluster is not receiving CCD bus messages, cluster will appear non-functional except for the continuously illuminated air bag indicator, and NO BUS message displayed. If instrument cluster in not receiving CCD bus messages, see appropriate VEHICLE COMMUNICATIONS article.
CAUTION:When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
WARNING:Disconnect negative battery cable BEFORE servicing instrument panel. When power is required for test purposes, reconnect battery for specific test purpose ONLY. After specific test is completed, disconnect negative battery cable before continuing servicing procedures.
Friday, October 29th, 2010 AT 3:40 AM