What was found
IDG 1 OIL LO PR DISPLAYED ON UPPER ECAM SCREEN. - ELEC REMOVED WIRE HARNESS FROM IDG AND MEGGERED TO FIREWALL CONNECTOR NO FAULTS. RANG WIRING FROM EGIU PIN AA-5B TO GCU PIN AA-15D ALL NORMAL, NO FAULTS FOUND. REPLACED EGIU 22XU1 PER AMM. RAN ENGINE IAW JRH ALL INDICATIONS NORMAL, NO FAULTS, COULD NOT DUPLICATE. VOLTS AND FREQUENCIES STEADY, NO FLUCTUATIONS NOTED.