The purpose of this paper is to establish some weak convergence theorems of modified two-step iteration process with errors for two asymptotically quasi-nonexpansive non-self mappings in the setting of real uniformly convex Banach spaces if E satisfies Opial's condition or the dual E * of E has the Kedec-Klee property. Our results extend and improve some known corresponding results from the existing literature. c 2014 All rights reserved.Keywords: Asymptotically quasi-nonexpansive non-self mappings, common fixed point, the modified two-step iteration process with errors for non-self maps, uniformly convex Banach space, weak convergence. 2010 MSC: 47H09, 47H10, 47J25.