Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026PXV
Model Year Start: 2023 Model: Corolla HV Prod Date Range: [09/2022 -           ]
Title: HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): P0E3116,P0E3117,P0E311F; DC/DC Converter Voltage Sensor "A"(VL) Circuit Voltage Below Threshold; 2023 - 2025 MY Corolla HV [09/2022 -        ]

DTC

P0E3116

DC/DC Converter Voltage Sensor "A"(VL) Circuit Voltage Below Threshold

DTC

P0E3117

DC/DC Converter Voltage Sensor "A"(VL) Circuit Voltage Above Threshold

DTC

P0E311F

DC/DC Converter Voltage Sensor "A"(VL) Circuit Intermittent

DESCRIPTION

The motor generator control ECU, which is built into the inverter with converter assembly, detects pre-boosting high voltage (VL) using the voltage sensor in the boost converter to control boosting. The motor generator control ECU also monitors the boost converter voltage sensor signal line and detects malfunctions.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

Note

P0E3116

DC/DC Converter Voltage Sensor "A"(VL) Circuit Voltage Below Threshold

Boost converter voltage (VL) signal is stuck (Low)

(1 trip detection logic)

Inverter with converter assembly

Comes on

Master Warning:

Comes on

SAE Code:

P0E33

P0E3117

DC/DC Converter Voltage Sensor "A"(VL) Circuit Voltage Above Threshold

Boost converter voltage (VL) signal is stuck (High)

(1 trip detection logic)

Inverter with converter assembly

Comes on

Master Warning:

Comes on

SAE Code:

P0E34

P0E311F

DC/DC Converter Voltage Sensor "A"(VL) Circuit Intermittent

Boost converter voltage (VL) signal is stuck (Low) or (High) detected when DTC P0C7917, P0E5717, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored.

(1 trip detection logic)

Inverter with converter assembly

Does not come on

Master Warning:

Does not come on

SAE Code:

P0E35

MONITOR DESCRIPTION

The motor generator control ECU monitors the boost converter voltage (VL) sensor circuit. If the motor generator control ECU detects an open or short circuit malfunction of the VL sensor circuit, the ECU will illuminate the MIL and store a DTC.

MONITOR STRATEGY

Related DTCs

P0E33 (INF P0E3116): DC/DC Converter Voltage Sensor "A" Range check (Low voltage)

P0E34 (INF P0E3117): DC/DC Converter Voltage Sensor "A" Range check (High voltage)

Required sensors/components

DC/DC converter voltage sensor

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 P0E33 (INF P0E3116) is not detected

DTC P0E34 (INF P0E3117) 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 2023 - 2025 MY Corolla HV [09/2022 -        ]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): UTILITY

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here 2023 - 2025 MY Corolla HV [09/2022 -        ]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): DTC CHECK / CLEAR

  1. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  2. Turn the ignition switch off and wait for 2 minutes or more.
  3. Turn the ignition switch to ON (READY) 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.

  4. Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.
  5. 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, perform the normal judgment procedure again.

CAUTION / NOTICE / HINT

HINT:

P0E3116, P0E3117 or P0E311F may be stored due to a malfunction which also causes the DTCs in the table below to be stored. In this case, first troubleshoot the output DTCs in the table below. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.

System

Relevant DTC

Hybrid control system

P0AD915

Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open

P0ADD15

Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open

P1C8449

High Voltage Power Resource Circuit Short during Ready ON

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

Powertrain > Motor Generator > Trouble Codes

Result

Proceed to

None of the following DTCs are output.

A

DTCs of hybrid control system in the tables below are output.

B

DTCs of motor generator control system in the tables below are output.

C

(b) Turn the ignition switch off.

A

REPLACE INVERTER WITH CONVERTER ASSEMBLY

B

GO TO DTC CHART (HYBRID CONTROL SYSTEM)

C

GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM)