Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026PZH
Model Year Start: 2023 Model: Corolla HV Prod Date Range: [09/2022 -           ]
Title: HYBRID / BATTERY CONTROL: HYBRID BATTERY SYSTEM (for LITHIUM-ION BATTERY with PA10): P33E600,P33E700; Hybrid/EV Battery Stack 1 Capacity Decline; 2023 - 2025 MY Corolla HV [09/2022 -        ]

DTC

P33E600

Hybrid/EV Battery Stack 1 Capacity Decline

DTC

P33E700

Hybrid/EV Battery Stack 2 Capacity Decline

DESCRIPTION

The HV battery is composed of 56 cells (3.7 V each) in series. The battery ECU assembly monitors the capacity of each HV battery cell to detect malfunctions of the HV battery.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

Note

P33E600

Hybrid/EV Battery Stack 1 Capacity Decline

Full charge capacity of the No. 1 HV supply stack sub-assembly is less than the specified value.

(1 trip detection logic)

HV battery

Does not come on

Master Warning Light:

Comes on

SAE Code: P33E6

P33E700

Hybrid/EV Battery Stack 2 Capacity Decline

Full charge capacity of the No. 2 HV supply stack sub-assembly is less than the specified value.

(1 trip detection logic)

HV battery

Does not come on

Master Warning Light:

Comes on

SAE Code: P33E7

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: HYBRID BATTERY SYSTEM (for LITHIUM-ION BATTERY with PA10): UTILITY

  1. Connect the GTS to the DLC3.
  2. Turn the ignition switch to ON and turn the GTS on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off and wait for 2 minutes or more.
  5. Turn the ignition switch to ON and turn the GTS on.
  6. Drive the vehicle on urban roads for approximately 10 minutes.

    (This DTC may not be stored if the vehicle is stopped or being driven at a constant speed.)

  7. Enter the following menus: Powertrain / HV Battery / Utility / All Readiness.
  8. 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

CAUTION:

Refer to the precautions before inspecting high voltage circuit.

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

NOTICE:

  • After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

    Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: BEFORE DISCONNECTING BATTERY

  • When disconnecting and reconnecting the auxiliary battery

    HINT:

    When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

    Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: AUTOMATIC LEARNING CHART 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: AUTOMATIC LEARNING CHART

PROCEDURE

1.

CHECK DTC OUTPUT (HV BATTERY, HYBRID CONTROL)

(a) Check for DTCs.

Powertrain > HV Battery > Trouble Codes

Powertrain > Hybrid Control > Trouble Codes

Result

Proceed to

"P33E600 or P33E700" only is output, or DTCs except the ones in the table below are also output.

A

DTCs of hybrid battery system in the table below are output.

B

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

C

System

Relevant DTC

Hybrid battery system

P060A47

Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure

P060B49

Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure

P060687

Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message

Hybrid control system

P0A1F94

Hybrid/EV Battery Energy Control Module Unexpected Operation

(b) Turn the ignition switch off.

A

REPLACE HV BATTERY

B

GO TO DTC CHART (HYBRID BATTERY SYSTEM)
C

GO TO DTC CHART (HYBRID CONTROL SYSTEM)