DTC Advanced Diagnostics: P0602: General Description

Courtesy of HONDA, U.S.A., INC.

The transmission control module (TCM) has a rewriting function that can be done in the field. The programs in the A/T CPU are the A/T control program (rewritable program) and the A/T update program (non-rewritable program). If the program rewriting process is not finished correctly, such as turning the vehicle to the OFF mode and turning it back ON during the rewriting process, the A/T CPU will store a DTC in the TCM.

Monitor Execution, Sequence, Duration, DTC Type