DTC U04B1: Invalid Data Received From Battery Monitor Module: General Description
WARNING: This page is about a different car, the 2019 Kia Niro EV. However, it is still accessible from the selected car via links, so may be relevant.
Many control units have applied to vehicle as it becomes more electronical. These units control their own system based on information from diverse sensors. Therefore necessity of common use of diverse sensor information and importance of stable power supply are gathering strength. Battery sensor is mounted on battery (-) terminal. It transmits battery voltage, current, temperature information to EPCU. EPCU controls generating voltage by duty cycle based on these signals.
NOTE:
Electric Power Control Unit (EPCU): VCU+MCU+LDC
- Vehicle Control Unit (VCU)
- Motor Control Unit (MCU)
- Low DC/DC Converter (LDC)