Sounds like you have a bad ACTUATOR, perform the following tests
WARNING:ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, FRONT IMPACT SENSOR, SIDE IMPACT SENSOR, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
WARNING:ON VEHICLES EQUIPPED WITH THE PREMIUM INSTRUMENT CLUSTER, THE CLUSTER CIRCUITRY PROVIDES AN ALTERNATING CURRENT TO SUPPLY POWER TO THE ELECTRO-LUMINESCENT ILLUMINATION LAMP THROUGH A PIGTAIL WIRE AND CONNECTOR THAT IS ACCESSIBLE AT THE BACK OF THE CLUSTER HOUSING. USE PROPER PRECAUTIONS WHEN HANDLING THIS UNIT DURING DIAGNOSIS OR SERVICE TO AVOID ELECTRICAL SHOCK AND POSSIBLE PERSONAL INJURY.
The instrument cluster actuator test will put the instrument cluster into its self-diagnostic mode. In this mode the instrument cluster can perform a self-diagnostic test that will confirm that the instrument cluster circuitry, the gauges, the PCI data bus message controlled indicators, and the electro-luminescent illumination lamp (if equipped) are capable of operating as designed. During the actuator test the instrument cluster circuitry will sweep each of the gauge needles across the gauge faces, illuminate each of the segments in the Vacuum-Fluorescent Display (VFD), turn all of the PCI data bus message-controlled indicators on and off again, and turn the electro-luminescent illumination lamp (if equipped) on and off again.
Successful completion of the actuator test will confirm that the instrument cluster is operational. However, there may still be a problem with the PCI data bus, the Powertrain Control Module, the Airbag Control Module (ACM), the Body Control Module (BCM), the Controller Anti-lock Brake (CAB), the Sentry Key Immobilizer Module (SKIM), or the inputs to one of these electronic control modules. Use a DRBIII(R) scan tool to diagnose these components. Refer to the appropriate diagnostic information.
If an individual indicator lamp or the electro-luminescent illumination lamp do not illuminate during the actuator test, the instrument cluster should be removed. However, check that the incandescent lamp bulb is not faulty, that the bulb holder is properly installed on the instrument cluster electronic circuit board, or that the electro-luminescent lamp pigtail wire connector is properly connected to the instrument cluster electronic circuit board before considering instrument cluster replacement. If the bulb and bulb holder, or the electro-luminescent lamp connection check OK, replace the faulty instrument cluster unit.
Begin the test with the ignition switch in the Off position.
Depress the odometer/trip odometer switch button.
While still holding the odometer/trip odometer switch button depressed, turn the ignition switch to the On position, but do not start the engine.
Release the odometer/trip odometer switch button.
The instrument cluster will automatically begin the actuator test sequence, as follows:
The cluster will turn on, then off again each of the PCI data bus message controlled indicators (except Airbag) to confirm the functionality of the indicator and the cluster control circuitry:
The cluster will sweep the needles for each of the gauges from minimum to maximum and back to minimum to confirm the functionality of the gauge and the cluster control circuitry:
Only on models with a premium version of the cluster, the cluster will illuminate the electroluminescent lamp and turn it off again to confirm the functionality of the lamp and the cluster control circuitry.
The cluster will sequentially step the odometer/trip odometer VFD display from all zeros (000000) through all nines (999999) to confirm the functionality of all VFD segments and their control circuitry, then display the software version number, followed by "DONE".
The actuator test is now completed. The instrument cluster will automatically exit the self-diagnostic mode and return to normal operation at the completion of the test, if the ignition switch is turned to the Off position during the test, or if a vehicle speed message indicating that the vehicle is moving is received from the PCM over the PCI data bus during the test.
Go back to Step 1 to repeat the test, if required.
Wednesday, December 8th, 2010 AT 4:46 AM