LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 59 (Hybrid Control System - Diagnostic Codes (4 Of 7)) >> HYBRID CONTROL SYSTEM (for PHEV Model) >> DTC P0C76-00: Hybrid/EV Battery System Discharge Time Too Long [08/2023 - ] >> Description

DTC P0C76-00: Hybrid/EV Battery System Discharge Time Too Long [08/2023 - ]: Description

WARNING: This page is about a different car, the 2025 Lexus RX 450h+ and 2024 Lexus RX 450h+. However, it is still accessible from the selected car via links, so may be relevant.

For a description of the inverter.

Refer to DESCRIPTION

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
  • Wire harness or connector
  • Hybrid vehicle control ECU
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 (MG2) 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.

Fig 1: Hybrid Battery System
GTY428237Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002