HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P0E5811,P0E5815; DC/DC Converter Temperature Sensor 2 Circuit Short to Ground; 2019 - 2020 MY Avalon HV [04/2018

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001A0II
Model Year Start: 2019	Model: Avalon HV	Prod Date Range: [04/2018 - 08/2020]
Title: HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P0E5811,P0E5815; DC/DC Converter Temperature Sensor 2 Circuit Short to Ground; 2019 - 2020 MY Avalon HV [04/2018 - 08/2020]

DTC

P0E5811

DC/DC Converter Temperature Sensor 2 Circuit Short to Ground

DTC

P0E5815

DC/DC Converter Temperature Sensor 2 Circuit Short to Battery or Open

DESCRIPTION

The motor generator control ECU (MG ECU), which is built into in the inverter with converter assembly, detects the temperature of the boost converter using the boost converter temperature sensor 2 (lower). The motor generator control ECU (MG ECU) also detects malfunctions in the boost converter temperature sensor 2 (lower) and its wiring.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P0E5811

DC/DC Converter Temperature Sensor 2 Circuit Short to Ground

Short to ground detected in boost converter temperature sensor 2 (lower) circuit

(1 trip detection logic)

Inverter with converter assembly

Comes on

Master Warning Light:

Comes on

P0E5815

DC/DC Converter Temperature Sensor 2 Circuit Short to Battery or Open

Open or short to +B detected in boost converter temperature sensor 2 (lower) circuit

(1 trip detection logic)

Inverter with converter assembly

Comes on

Master Warning Light:

Comes on

Related Data List

DTC No.

Data List

P0E5811

P0E5815

Boosting Converter Temperature 2 (Lower)

MONITOR DESCRIPTION

If the motor generator control ECU detects a malfunction of the boost converter temperature sensor 2 (lower), it will illuminate the MIL and store a DTC.

MONITOR STRATEGY

Related DTCs	P0E5A (INF P0E5811): DC/DC Converter Temperature Sensor "C" Range Check P0E5B (INF P0E5815): DC/DC Converter Temperature Sensor "C" Range Check
Required sensors/components	Boost converter temperature sensor 2 (lower)
Frequency of operation	Continuous
Duration	TMC's intellectual property
MIL operation	Immediately
Sequence of operation	None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not stored	TMC's intellectual property
Other conditions belong to TMC's intellectual property	-

TYPICAL MALFUNCTION THRESHOLDS

TMC's intellectual property

COMPONENT OPERATING RANGE

Motor generator control ECU

DTC P0E5A (INF P0E5811) is not detected

DTC P0E5B (INF P0E5815) is not detected

CONFIRMATION DRIVING PATTERN

HINT:

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here

Connect the Techstream to the DLC3.
Turn the power switch on (IG) and turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the power switch off and wait for 2 minutes or more.
Turn the power switch on (IG) and turn the Techstream on.
With power switch on (IG) and wait for 5 seconds or more. [*1]
HINT:

[*1]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.
Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.

PROCEDURE

1.	REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS

Click here

COMPLETED