Toyota Avalon (XX50): Headlight Dimmer Switch

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Exterior / Lighting (ext) / Headlight Dimmer Switch

Components

COMPONENTS

ILLUSTRATION

*A

for Manual Tilt and Manual Telescopic Steering Column

*B

for Power Tilt and Power Telescopic Steering Column

*1

LOWER STEERING COLUMN COVER

*2

TURN SIGNAL SWITCH

*3

UPPER STEERING COLUMN COVER

-

-

Inspection

INSPECTION

PROCEDURE

1. INSPECT TURN SIGNAL SWITCH

*a

Component without harness connected

(Turn Signal Switch)

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

Standard Resistance:

Light Control Switch

Tester Connection

Condition

Specified Condition

2 (L_OFF) - 12 (EL)*1

Light control switch in DRL OFF position

Below 1 Ω

10 (A) - 12 (EL)

Light control switch in AUTO position

Below 1 Ω

14 (T) - 12 (EL)

Light control switch in tail position

Below 1 Ω

5 (H) - 12 (EL)

Light control switch in head position

Below 1 Ω

Dimmer Switch

Tester Connection

Condition

Specified Condition

6 (HF) - 12 (EL)

Dimmer switch in high flash position

Below 1 Ω

1 (HU) - 12 (EL)

Dimmer switch in high position

Below 1 Ω

Turn Signal Switch

Tester Connection

Condition

Specified Condition

9 (TR) - 12 (EL)

Turn signal switch in neutral position

10 kΩ or higher

3 (TL) - 12 (EL)

Turn signal switch in neutral position

10 kΩ or higher

9 (TR) - 12 (EL)

Turn signal switch in right turn position

Below 1 Ω

9 (TR) - 12 (EL)

Turn signal switch in full right turn position

Below 1 Ω

9 (TR) - 11 (CR)

Turn signal switch in full right turn position

Below 1 Ω

11 (CR) - 12 (EL)

Turn signal switch in full right turn position

Below 1 Ω

3 (TL) - 12 (EL)

Turn signal switch in left turn position

Below 1 Ω

3 (TL) - 12 (EL)

Turn signal switch in full left turn position

Below 1 Ω

3 (TL) - 11 (CR)

Turn signal switch in full left turn position

Below 1 Ω

11 (CR) - 12 (EL)

Turn signal switch in full left turn position

Below 1 Ω

  • *1: w/ Light Control Switch DRL OFF Position

HINT:

  • The left turn or right turn condition indicates a condition in which the turn signal switch will return to the neutral position after releasing your hand from the turn signal switch (turn signal switch is operated approximately 7°).
  • The full left turn or full right turn condition indicates a condition in which the turn signal switch will not return to the neutral position after releasing your hand from the turn signal switch (turn signal switch is operated 12°).

If the result is not as specified, replace the turn signal switch.

Installation

INSTALLATION

PROCEDURE

1. INSTALL TURN SIGNAL SWITCH

(a) Engage the claw as shown in the illustration.

Install in this Direction

(b) Install the turn signal switch with the 2 screws.

2. INSTALL UPPER STEERING COLUMN COVER

Click here

3. INSTALL LOWER STEERING COLUMN COVER

Click here

4. CUSTOMIZE POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM (for Power Tilt and Power Telescopic Steering Column)

Click here

Removal

REMOVAL

PROCEDURE

1. CHANGE POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM SETTINGS (for Power Tilt and Power Telescopic Steering Column)

Click here

2. REMOVE LOWER STEERING COLUMN COVER

Click here

3. REMOVE UPPER STEERING COLUMN COVER

Click here

4. REMOVE TURN SIGNAL SWITCH

(a) Remove the 2 screws.

(b) Using a screwdriver with its tip wrapped with protective tape, disengage the claw and remove the turn signal switch as shown in the illustration.

*a

Protective Tape

Remove in this Direction

Headlight Assembly

Headlight Ecu

See More:

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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

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