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Diagnostic Test

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
  1. 1)  THROTTLE BODY INSPECTION 

    Ignition on, engine not running.

    With a scan tool, read DTCs and record the related Freeze Frame data.

    NOTE: This DTC sets in extreme cold Ambient Temperatures with the throttle plate stuck by the time the vehicle gets to the dealership the condition may be corrected.
    NOTE: Diagnose any other DTCs that may also be set before continuing.

    Turn the ignition off.

    Remove the Air Cleaner Assembly from the Throttle Body.

    Check for any signs of a foreign material (ice or dirt) on the Throttle Plate or in the bore causing the Throttle Plate to stick.

    Is the throttle blade still stuck because it is frozen? 

    Yes 

    1. Allow the Throttle Body to thaw naturally in a room temperature climate.
    2. Perform POWERTRAIN VERIFICATION TEST .

    No 

    1. Test Complete.