SYSTEM DIAGRAM 
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Hybrid Control System: Hybrid/EV Battery Sensor Module (P0AFC00,P0AFC16,P0AFC96,P308A12)
DESCRIPTION If the battery voltage sensor detects an internal malfunction, it sends an error signal to the hybrid vehicle control ECU. When the hybrid vehicle control ECU receives the error signal from the battery voltage sensor, the ECU warns the driver and performs fail-safe control. DTC No. Detec ...
