Toyota Yaris: Automatic Light Control Sensor / On-vehicle Inspection

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Vehicle Exterior / Lighting (ext) / Automatic Light Control Sensor / On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

(a) Check the wire harness.

(1) Disconnect the automatic light control sensor.

(2) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

H78-1 (CLTB) - H78-2 (CLTE)

Ignition switch on (IG)

11 to 14 V

If the specified condition is not met, replace the vehicle wire harness.

*a

Front view of wire harness connector

(Automatic Light Control Sensor)

(b) Check the resistance.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

H78-2 (CLTE) - Body ground

Always

Below 1 Ω

If the specified condition is not met, replace the vehicle wire harness.

*a

Front view of wire harness connector

(Automatic Light Control Sensor)

(c) Check the automatic light control sensor.

(1) Connect the automatic light control sensor.

(2) Check the waveform. Use the oscilloscope and check the waveform in the terminal spaces.

NOTICE:

With the connector connected as is, check from the rear side of the connector.

*a

Component with harness connected

(Automatic Light Control Sensor)

*b

Waveform

OK:

Tester Connection

Condition

Tool Setting

Specified Condition

H78-4 (CLTS) - H78-2 (CLTE)

Ignition switch on (IG)

2 V/DIV.,10 ms/DIV.

Pulse generation

(See waveform)

HINT:

The communication waveform changes according to the surrounding brightness.

If the result is not as specified, the automatic light control sensor may be malfunctioning.

    Components

    C..

    Removal

    REMOVAL PROCEDURE 1. DISCONNECT NO. 1 ROOF HEADLINING MOULDING LH Click here 2. DISCONNECT NO. 1 ROOF HEADLINING MOULDING RH HINT: Use the same procedure as for the LH side...

    Other information:

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: On-vehicle Inspection


    ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT CAUTION: When working near the engine room while the engine has started or the power source mode is engine switch on (IG), do not touch the fan and generator V belt or rotating components such as the fan, etc...

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Precaution


    PRECAUTION PRECAUTIONS WHEN INSPECTING STOP AND START SYSTEM NOTICE: When the audio and visual system volume is high, a fail-safe function may operate in order to maintain the operation of stop and start control. The fail-safe function is canceled when the ignition switch is turned off...

    Categories

    Refueling

    Before refueling, close all the doors, windows, and the liftgate/trunk lid, and switch the ignition OFF.

    To open the fuel-filler lid, pull the remote fuel-filler lid release.

    Toyota Yaris. Refueling

    To remove the fuel-filler cap, turn it counterclockwise. Attach the removed cap to the inner side of the fuel-filler lid.

    read more

     
    Copyright © 2022 www.toyaris4.com