Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GCPV
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 09/2022]
Title: HYBRID / BATTERY CONTROL: HV BATTERY THERMISTOR (for NICKEL METAL HYDRIDE BATTERY): REMOVAL; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during hybrid battery thermistor removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

Auxiliary battery terminal is disconnected/reconnected

Perform steering sensor zero point calibration

Lane Control System

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; PRE-COLLISION: PRE-COLLISION SYSTEM (for HV Model): INITIALIZATION

Pre-collision System

CAUTION:

  • Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the repair manual.

    Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): PRECAUTION

  • To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.

NOTICE:

After the power switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System (for HV Model))

PROCEDURE

1. REMOVE HV BATTERY JUNCTION BLOCK ASSEMBLY

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HV RELAY ASSEMBLY (for NICKEL METAL HYDRIDE BATTERY): REMOVAL

2. REMOVE NO. 1 HYBRID BATTERY SHIELD SUB-ASSEMBLY

CAUTION:

Be sure to wear insulated gloves and protective goggles.

(a) Remove the 4 nuts.

(b) Pull back the No. 2 hybrid battery shield sub-assembly and remove the No. 1 hybrid battery shield sub-assembly from the HV battery.

*1

No. 1 Hybrid Battery Shield Sub-assembly

*2

No. 2 Hybrid Battery Shield Sub-assembly

Pull Back

HINT:

Pull back the No. 2 hybrid battery shield sub-assembly until it is separated from the stud bolt of the No. 1 hybrid battery shield sub-assembly.

3. REMOVE NO. 1 HYBRID BATTERY INTAKE DUCT

CAUTION:

Be sure to wear insulated gloves and protective goggles.

(a) Disengage the claw of hybrid battery thermistor (sensor portion) and disconnect the hybrid battery thermistor from the No. 1 hybrid battery intake duct.

(b) Disengage the claw to remove the No. 1 hybrid battery intake duct from the HV battery.

4. REMOVE HYBRID BATTERY THERMISTOR

CAUTION:

Be sure to wear insulated gloves and protective goggles.

(a) Disengage the clamp.

(b) Disengage the 2 claws and remove the No. 1 hybrid battery packing from the HV battery.

(c) Disengage the clamp.

(d) Disconnect the battery voltage sensor connector.

(e) Disengage the 4 clamps.

(f) Disengage the 3 claws of the hybrid battery thermistor (sensor portions) and remove the hybrid battery thermistor from the HV battery.