Your Packard Super engine control system detects a problem, the computer stores the diagnostic trouble
code U3023 in its memory.
To figure out what is wrong with your vehicle you must first extract the U3023 DTC For Packard Super.
On 1999 and later U3023 Packard Super engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.
U3023 Packard Super DTC Meaning
Network Code - Problem is climate control system, lighting, airbags, etc.
SAE - Generic
Cruise Control Servo Indicates Low
TFP Valve Position Switch-Drive Without Drive Ratio
If your U3023 Packard Super check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system U3023 and engine control unit are in charge of monitoring a bunch of different U3023 DTC For Packard Super, and if they get a reading that's a little out of whack, up pops the check engine light.