What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS FLIGHT DIVERSION ON ACCOUNT OF MANY CAUTION LIGHTS; DFCG WAS BLANK, NAV BLANK, WINDSHEAR, YAW DAMPENER OFF, AUTO THROTTLE OFF, A/P OFF MACH TRIM LIGHT, AT 18,000-20,000 LOW FUEL LEVEL LIGHT ON SHOWING (11.1) POUNDS OF FUEL. MAINTENANCE FOUND #1 DFGC SHOWED RAM FAULT. REPLACED #1 DFGC IAW AMM 22-01-01. ACCOMPLISHED RTS CHECK ON COMPUTER #1 AND #2. BOTH PASSED GO. ACCOMPLISHED LOW FUEL LEVEL INDICATION TEST IAW AMM 8-2-00. LOW FUEL IND OPS TESTS NORMAL. ACCOMPLISHED FUEL SUMP. NO WATER NOTED. FUEL QTY MATCHES STICK READINGS IN LEFT AND RIGHT TANKS.