2002 Ford F-150 XLT instrument cluster diagnostic mode. To enter this diagnostic mode press the trip reset button while turning key to "on" position. Hold for 3 seconds to enter test mode. Pressing reset button toggles through the diagnostic menu.
I got a good deal on this truck. It had a bad rod bearing and rings. My son did the rebuild. When we got it together and tried to crank it we had several issues. One thing, it would not shift. Took me days till I figured out the harness plug for the transmission was not plugged in. I couldn't see it but did have the wiring harness in place. The real ghost was and we still occasionally have an issue with is the key is not recognized by the PATS system. By disconnected and cleaning the harness connection at the ECM module we have been lucky to correct that problem a few times. The odometer works when it is in the mood. One of these days we will take the instrument cluster out and try to repair that by soldering the connection at the display.
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