DTC P0AE4-11: Hybrid/EV Battery Precharge Contactor Circuit Short to Ground [06/2020 - ]: Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2025 Toyota RAV4, 2024 Toyota RAV4, 2023 Toyota RAV4, 2022 Toyota RAV4, and 2021 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

The SMRs (System Main Relays) are the relays that connect or disconnect the high-voltage system in accordance with commands from the hybrid vehicle control ECU assembly.

There are 3 SMRs and 1 system main resistor. SMRB, SMRP, SMRG and the system main resistor are located in the HV battery junction block assembly.

To connect to the high voltage power system, the vehicle will first turn on SMRP and SMRB to charge the vehicle through the system main resistor. Then, SMRP will be turned off after SMRG is turned on. To shut off the high voltage power system, SMRB and SMRG are turned off.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Warning Indicate
P0AE4-11	Hybrid/EV Battery Precharge Contactor Circuit Short to Ground	Short to ground in the SMRP circuit: Primary circuit of SMRP is malfunctioning. (2 trip detection logic)	Wire harness or connector HV battery junction block assembly Hybrid vehicle control ECU assembly	Does not come on	Master Warning: Comes on

RELATED DATA LIST

DTC No.	Data List
P0AE4-11	VL-Voltage before Boosting VH-Voltage after Boosting Hybrid/EV Battery Voltage SMRP Status SMRB Status SMRG Status SMRP Control Status SMRB Control Status SMRG Control Status Boosting Converter Shutdown Status Generator Inverter Shutdown Status Motor Inverter Shutdown Status