DTC P3000-4B: Hybrid/EV Battery Control System Over Temperature [08/2020 - ]: Description

WARNING: This page is about a different car, the 2022 Toyota Avalon and 2021 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

The battery ECU assembly monitors the temperature of the HV battery to detect if it becomes excessively high.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Warning Indicate
P3000-4B	Hybrid/EV Battery Control System Over Temperature	The battery ECU assembly detects a HV battery cooling system error signal. (1 trip detection logic)	Hybrid vehicle control ECU No. 1 HV supply stack sub-assembly No. 2 HV supply stack sub-assembly	Does not come on	Master Warning Light: Comes on

HINT:

The normal HV battery temperature is 60°C (140°F) or less.

RELATED DATA LIST

DTC No.	Data List
P3000-4B	Hybrid/EV Battery Temperature 1 to 6 Hybrid/EV Battery Cooling Fan Intake Air Temperature 1 Ambient Temperature WOUT Control Limit Power WIN Control Limit Power Hybrid/EV Battery SOC Hybrid/EV Battery Cooling Fan 1 Frequency