Toyota Avalon (XX50): Automatic High Beam Main Switch

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Exterior / Lighting (ext) / Automatic High Beam Main Switch

Components

COMPONENTS

ILLUSTRATION

*1	AUTO HIGH BEAM SWITCH	*2	COWL SIDE TRIM SUB-ASSEMBLY LH
*3	FRONT DOOR OPENING TRIM WEATHERSTRIP LH	*4	FRONT DOOR SCUFF PLATE LH
*5	HOOD LOCK CONTROL LEVER SUB-ASSEMBLY	*6	INSTRUMENT SIDE PANEL LH
*7	NO. 1 INSTRUMENT PANEL SUB-ASSEMBLY	*8	NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Inspection

INSPECTION

PROCEDURE

1. INSPECT AUTO HIGH BEAM SWITCH

*a	Component without harness connected (Auto High Beam Switch)

(a) Check the switch.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
5 (+B) - 2 (E)	Auto high beam switch not pressed	10 kΩ or higher
5 (+B) - 2 (E)	Auto high beam switch pressed	Below 1 Ω

If the result is not as specified, replace the auto high beam switch.

(b) Inspect the switch illumination.

(1) Apply auxiliary battery voltage to the auto high beam switch and check that the switch illuminates.

OK:

Measurement Condition	Specified Condition
Auxiliary battery positive (+) → Terminal 6 (ILL+) Auxiliary battery negative (-) → Terminal 1 (ILL-)	Illuminates

Measurement Condition

Specified Condition

Auxiliary battery positive (+) → Terminal 6 (ILL+)

Auxiliary battery negative (-) → Terminal 1 (ILL-)

Illuminates

If the result is not as specified, replace the auto high beam switch.

(1) Apply auxiliary battery voltage to the auto high beam switch and check that the indicator illuminates.

OK:

Measurement Condition	Specified Condition
Auxiliary battery positive (+) → Terminal 3 (IND+) Auxiliary battery negative (-) → Terminal 4 (AZBI)	Illuminates

Measurement Condition

Specified Condition

Auxiliary battery positive (+) → Terminal 3 (IND+)

Auxiliary battery negative (-) → Terminal 4 (AZBI)

Illuminates

If the result is not as specified, replace the auto high beam switch.

Installation

INSTALLATION

PROCEDURE

1. INSTALL AUTO HIGH BEAM SWITCH

(a) Engage the 2 claws to install the auto high beam switch as shown in the illustration.

Install in this Direction

2. INSTALL NO. 1 INSTRUMENT PANEL SUB-ASSEMBLY

Click here

3. CONNECT HOOD LOCK CONTROL LEVER SUB-ASSEMBLY

Click here

4. INSTALL NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Click here

5. INSTALL INSTRUMENT SIDE PANEL LH

Click here

6. INSTALL FRONT DOOR OPENING TRIM WEATHERSTRIP LH

Click here

7. INSTALL COWL SIDE TRIM SUB-ASSEMBLY LH

Click here

8. INSTALL FRONT DOOR SCUFF PLATE LH

Click here

Removal

REMOVAL

PROCEDURE

1. REMOVE FRONT DOOR SCUFF PLATE LH

Click here

2. REMOVE COWL SIDE TRIM SUB-ASSEMBLY LH

Click here

3. DISCONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP LH

Click here

4. REMOVE INSTRUMENT SIDE PANEL LH

Click here

5. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Click here

6. DISCONNECT HOOD LOCK CONTROL LEVER SUB-ASSEMBLY

Click here

7. REMOVE NO. 1 INSTRUMENT PANEL SUB-ASSEMBLY

Click here

8. REMOVE AUTO HIGH BEAM SWITCH

(a) Using a screwdriver with its tip wrapped with protective tape, disengage the 2 claws and remove the auto high beam switch as shown in the illustration.

*a	Protective Tape
	Remove in this Direction

Relay

Automatic Light Control Sensor

See More:

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