What was found
CTR TK PUMP 1 LOW ECAM, FLT DIVERTED. FUEL INNER QTY INDICATION IS LOCKED UP, LEFT INNER APPEARS INACCURATE. REMOVED AND REPLACED FQIC IAW AMM. BITE CHECKS NORMAL. OPERATED CROSSFEED VALVE MULTIPLE TIMES WITH ALL INDICATION NORMAL. RAN BOTH ENGINES IAW THE JRH AND MONITORED FUEL USED AND FUEL FLOW WITH THE CROSSFEED VALVE OPEN AND CLOSED. FUEL FLOW AND FUEL USED FROM EACH TANK WAS EQUAL WITH CROSSFEED VALVE OPEN OR CLOSED. LEFT AND RIGHT FUEL BOOST PUMPS OPERATED NORMAL. AIRCRAFT IS OK FOR SERVICE.