DTC P0C76-00: Hybrid/EV Battery System Discharge Time Too Long [09/2023 - ]: Description

WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.

For a description of the inverter.

Refer to DTC P0D2D-16: Drive Motor "A" Inverter Voltage Sensor(VH) Circuit Voltage Below Threshold; DTC P0D2D-17: Drive Motor "A" Inverter Voltage Sensor(VH) Circuit Voltage Above Threshold; DTC P0D2D-1F: Drive Motor "A" Inverter Voltage Sensor(VH) Circuit Intermittent [09/2023 - ]

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Warning Indicate	DTC Output from	Priority	Note
P0C76-00	Hybrid/EV Battery System Discharge Time Too Long	The inverter voltage (VH) does not drop during discharge. (Discharge: Offsetting of the residual pressure in the high-voltage side after ignition switch is turned off) (1 trip detection logic)	Hybrid motor control inverter assembly	Does not come on	Master Warning: Comes on	Hybrid Control	A	SAE Code: P0C76

HINT:

When the ignition switch is turned from ON (READY) to off, the MG ECU discharges voltage stored in the inverter by allowing current to flow to motor without generating torque. When the vehicle is normal, VH voltage becomes approximately 0 V after discharging. If VH voltage exceeds a specified value, this DTC is stored.