Toyota Avalon (XX50): Battery Voltage Sensor

Components

COMPONENTS

ILLUSTRATION

*1	UPPER HV BATTERY COVER SUB-ASSEMBLY	*2	BATTERY VOLTAGE SENSOR
*3	NO. 1 HV BATTERY SHIELD PANEL	-	-
	N*m (kgf*cm, ft.*lbf): Specified torque	-	-

Installation

INSTALLATION

PROCEDURE

1. INSTALL BATTERY VOLTAGE SENSOR

CAUTION:

Be sure to wear insulated gloves and protective goggles.

(a) Install the battery voltage sensor to the HV battery with the bolt. Torque: 7.5 N·m {76 kgf·cm, 66 in·lbf} NOTICE: Check color of the label. If the battery voltage sensor has been struck or dropped, replace it. Make sure to align the hole of the battery voltage sensor with the pin.

*a Blue Label *b Pin

(b) Connect the battery voltage sensor connector.

NOTICE:

Make sure that the connector is connected securely.

2. INSTALL NO. 1 HV BATTERY SHIELD PANEL

CAUTION:

Be sure to wear insulated gloves and protective goggles.

(a) Pull back the rear No. 1 HV battery shield and install the No. 1 HV battery shield panel to the HV battery.

(b) Install the bolt and nut.

Torque:

7.5 N·m {76 kgf·cm, 66 in·lbf}

(c) Connect the battery voltage sensor connector.

(d) Engage the clamp.

3. INSTALL UPPER HV BATTERY COVER SUB-ASSEMBLY

CAUTION:

Be sure to wear insulated gloves and protective goggles.

(a) Install the upper HV battery cover sub-assembly to the HV battery with the 8 bolts and 4 nuts.

Torque:

7.5 N·m {76 kgf·cm, 66 in·lbf}

4. INSTALL HV BATTERY

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Removal

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 battery voltage sensor removal/installation are shown below.

CAUTION:

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

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

NOTICE:

• After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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• The type of battery voltage sensor to be used varies depending on the vehicle model.
• The type of battery voltage sensor can be confirmed by the color of the label.

  *a	Blue Label

• If the wrong type of battery voltage sensor is installed, the power switch cannot be turned on (READY).
• After installing the battery voltage sensor, perform the following to check that the power switch can be turned on (READY).
  • Turn the power switch on (READY).
  • Turn the power switch off and wait for 30 seconds or more.
  • Turn the power switch on (READY) again.

PROCEDURE

1. REMOVE HV BATTERY

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2. REMOVE UPPER HV BATTERY COVER SUB-ASSEMBLY

CAUTION:

Be sure to wear insulated gloves and protective goggles.

(a) Remove the 8 bolts, 4 nuts and upper HV battery cover sub-assembly from the HV battery.

*a Bolt *b Nut

3. REMOVE NO. 1 HV BATTERY SHIELD PANEL

CAUTION:

Be sure to wear insulated gloves and protective goggles.

(a) Disengage the clamp.

(b) Disconnect the battery voltage sensor connector.

(c) Remove the bolt and nut.

(d) Pull back the rear No. 1 HV battery shield and remove the No. 1 HV battery shield panel from the HV battery.

*1	No. 1 HV Battery Shield Panel
*2	Rear No. 1 HV Battery Shield
	Pull Back

4. REMOVE BATTERY VOLTAGE SENSOR

CAUTION:

Be sure to wear insulated gloves and protective goggles.

(a) Disconnect the battery voltage sensor connector. NOTICE: Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.

(b) Remove the bolt and battery voltage sensor from the HV battery. NOTICE: If the battery voltage sensor has been struck or dropped, replace it.