Reading and Clearing Diagnostic Trouble Codes

Instrument Cluster (IC) Dealer Test Mode

To enter the IC (Instrument Cluster) self-diagnostic mode, begin with the ignition key in the OFF position. Press and hold the message center RESET button. Turn the key to the RUN position and hold until the display indicates ENGINEERING TEST MODE, usually within 3 to 5 seconds. Press the RESET button once to advance through each stage of the self-test. To exit the IC (Instrument Cluster) self-test mode, turn the ignition to the OFF position.

NOTE: If the message center detects a non-resettable fault that it is reporting out on such as door ajar, the dealer test mode session cannot be entered until the fault condition has been corrected and the message removed. If the dealer test mode session is interrupted by the fault, the session can be resumed by pressing the RESET button.

NOTE: The displays listed in the table below use xxx's to represent a numeric or alpha-numeric value. The value may display the same amount of characters represented by the xxx's or there may be more/less depending on the type of display. For example: DTCs xxxx xxxx xxxx may display DTC C0100. Note that there were 12 x's in the display description but only 4 digits in the actual display.