Toyota Sequoia (2005). Manual - part 861

I01255

1

2

3

4

From Back Side:

I01254

Wire Harness Side:

4

3

2

1

–

BODY ELECTRICAL

HEADLIGHT AND TAILLIGHT SYSTEM

BE–29

3433

12.

Connector connected:
INSPECT AUTOMATIC LIGHT CONTROL SENSOR
CIRCUIT

Connect the wire harness side connector to the sensor and in-
spect wire harness side connector from the back side, as shown
in the table.
HINT:

Ignition switch ON.

Light control switch AUTO.

Vehicle’s surroundings are bright.

Tester connection

Condition

Specified condition

3 – Ground

Constant

Continuity

1 – Ground

Ignition switch LOCK or ACC

No voltage

1 – Ground

Ignition switch ON

9.5 V or more

3 – 4

Vehicle is under the direct sun light.

(Sensor is not covered)

5.2 – 9.0 V

3 – 4

Sensor is covered

Below 0.8 V

If circuit is as specified, try replacing the sensor with a new one.
If the circuit is not as specified, inspect the circuit connected to
other parts.

13.

Connector disconnected:
INSPECT AUTOMATIC LIGHT CONTROL SENSOR
CIRCUIT

Disconnect the connector from the sensor and inspect the con-
nector on the wire harness side, as shown in the table.

Tester connection

Condition

Specified condition

3 – Ground

Constant

Continuity

1 – Ground

Ignition switch OFF

No voltage

1 – Ground

Ignition switch ON

Battery positive voltage

4 – Ground

Ignition switch LOCK or ACC

No voltage

4 – Ground

Ignition switch ON

5.2 – 9.0 V

If the circuit is not as specified, inspect the circuit connected to
other parts.

I18600

BE–30

–

BODY ELECTRICAL

HEADLIGHT AND TAILLIGHT SYSTEM

3434

14.

INSPECT DAYTIME RESISTOR CONTINUITY

Condition

Tester connection

Specified condition

Constant

1 – 2

Approx. 33.7 m

Ω

 at 20

°

C

If continuity is not as specified, replace the resistor.

BE1DK–09

I27016

For Adjustment in
Vertical Direction

–

BODY ELECTRICAL

HEADLIGHT AND TAILLIGHT SYSTEM

BE–31

3435

ADJUSTMENT

1.

ADJUST HEADLIGHT AIMING

I18654

0.4 

°

3 m (9.84 ft)

H

20.9 mm 
(0.823 in.)

7

V RH Line

90 

°

V LH Line

4

V LH Line

V Line

V RH Line

6

5

6

V LH Line

V Line

V RH Line

6

5

6

H

4

O: step No.

H 4

20.9 mm 
(0.823 in.)

1,348 mm (53.1 in.)

Low Beam:

High Beam:

29.7 mm 
(1.17 in.)

20.9 mm 
(0.823 in.)

1,348 mm (53.1 in.)

1,348  mm
 (53.1 in.)

High Beam

Low Beam

H RH and
H LH 7

BE–32

–

BODY ELECTRICAL

HEADLIGHT AND TAILLIGHT SYSTEM

3436

2.

ADJUST HEADLIGHT AIM ONLY

(a)

Place the vehicle in the following conditions.

The area around the headlight is not deformed.

The vehicle is parked on a level surface.

Tire inflation pressure is the specified value.

A driver is in the driver’s seat and the vehicle is in a state ready for driving (with a tank full).

The vehicle has been bounced several times.

(b)

Check the headlight aiming.
(1)

Prepare a thick white paper.

(2)

Stand the paper perpendicular to the ground at the position 3 m (9.84 ft) away from the headlights
bulb center.

(3)

Ensure that the center line of the vehicle and the paper face forms a 90–degree angle as shown
in the illustration.

(4)

Draw a horizontal line (H line) on the paper, showing where the headlights should strike.

(5)

Draw a vertical line (V line) at the position where the extended center line of the vehicle strikes.

(6)

Draw 2 vertical lines (by connecting the low and high beam center marks) to where the both head-
lights should strike (V RH and V LH lines).

(7)

Draw a horizontal line (by connecting the both low beam center marks) at the position where the
headlights should strike (H RH and H LH lines).

HINT:
The H RH and H LH line is 0.4

°

 below the horizontal line (H line) of the light axis.

(8)

Start the engine.

(9)

Turn the headlights ON.

(10) Check that the headlights properly strike the position shown in the illustration.
(11) If not, adjust the lights in the vertical or horizontal direction. 

HINT:
As shown in the illustration, adjust each aim of the RH and LH lights.
(c)

When adjusting it in the vertical direction: 
Using adjusting bolt, adjust the headlight aim to within the specified range.