Informed memory access for vehicle electronic modules

A vehicle electronic module receives vehicle bus messages from a vehicle communication bus interface (122). The vehicle bus messages may include vehicle status data. The electronic module may determine whether a memory safety condition has been met based on the vehicle status data. The electronic module may delay reading or writing data, such as diagnostic data, into a non-volatile memory (128) until the memory safety condition is reached. The data is read from or stored in the non-volatile memory (128) with reduce risk of corrupted data.