DTC Description
WARNING: This page is about a different car, the 2015 Hyundai Sonata. However, it is still accessible from the selected car via links, so may be relevant.
The AHB ECU monitors the operation of the IC components such as memory, register, A/D converter and so on.
The ECU sets this code when the EEPROM data read by the master processor is different than prior data, or when the processor detects abnormal operation in RAM, Status Register, Interrupt, Timer, A/D converter or cycle time.