The blower is located behind the glovebox, no relays for the blower are in the center console, just wires that could have come loose. Does the 2002 have yellow blinking lights that activate when turning on the engine, like the earlier cars when an error is detected?

It is possible that the cabin temp sensor is dirty and that the fist bump dislodged dirt and allowed it to work again. Or just the plug is loose, or, the blower switch is acting up.