Toyota Yaris: Power Door Lock Control System / Terminals Of Ecu

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Vehicle Interior / Door Lock / Power Door Lock Control System / Terminals Of Ecu

TERMINALS OF ECU

CHECK POWER DISTRIBUTION BOX ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

*1

Power Distribution Box Assembly

*2

Main Body ECU (Multiplex Network Body ECU)

(a) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.

Click here

(b) Reconnect the power distribution box assembly connectors.

(c) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connectors connected.

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

MB-13 (GND1) - Body ground

Ground

Always

Below 1 Ω

MB-14 (GND2) - Body ground

Ground

Always

Below 1 Ω

MB-26 (BECU) - Body ground

Auxiliary battery power supply

Always

11 to 14 V

MB-27 (IGR) - Body ground

IG power supply

Ignition switch ON

11 to 14 V

(d) Install the main body ECU (multiplex network body ECU) to the power distribution box assembly.

Click here

(e) Measure the voltage and check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

4E-5 (FRCY) - Body ground

Front door courtesy light switch (for RH) input

Front door RH open

Below 1 V

Front door RH closed

11 to 14 V

4E-3 (FLCY) - Body ground

Front door courtesy light switch (for LH) input

Front door LH open

Below 1 V

Front door LH closed

11 to 14 V

4E-2 (BCTY) - Body ground

Back door courtesy light switch input

Back door closed

Below 1 V

Back door open

11 to 14 V

4E-39 (TR+) - Body ground

Back door lock motor drive output

Back door closed → open

Below 1 V → 11 to 14 V → Below 1 V

4C-36 (ACT-) - Body ground

Door lock motor unlock drive output

Door control switch or driver door key cylinder off → on (unlock)

Below 1 V → 11 to 14 V → Below 1 V

4B-34 (ACT+) - Body ground

Door lock motor lock drive output

Door control switch or driver door key cylinder off → on (lock)

Below 1 V → 11 to 14 V → Below 1 V

4B-19 (ACT+) - Body ground

H4-3 (LSFR) - Body ground

Front door RH unlock detection switch input

Front door RH unlocked

Below 1 V

Front door RH locked

Pulse generation

H4-9 (LSFL) - Body ground

Front door LH unlock detection switch input

Front door LH unlocked

Below 1 V

Front door LH locked

Pulse generation

H4-28 (L2) - Body ground

Driver door key-linked lock input

Driver door key cylinder turned to lock

Below 1 V

H4-28 (L2) - Body ground

Driver door key-linked lock input

Driver door key cylinder not turned

Pulse generation

H4-4 (UL3) - Body ground

Driver door key-linked unlock input

Driver door key cylinder turned to unlock

Below 1 V

H4-4 (UL3) - Body ground

Driver door key-linked unlock input

Driver door key cylinder not turned

Pulse generation

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(a) Disconnect the H46 certification ECU (smart key ECU assembly) connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

H46-6 (+B) - Body ground

Ground

Always

Below 1 Ω

H46-29 (E) - Body ground

Auxiliary battery power supply

Always

11 to 14 V

(c) Reconnect the O47 certification ECU (smart key ECU assembly) connector.

(d) Measure the voltage and check for pulses according to the value(s) in the table below.

Tester Connection

Terminal Description

Condition

Specified Condition

O47-16 (TSW5) - Body ground

Back door opener switch input

Back door opener switch assembly (open switch) off → on

Below 1 V → Pulse generation

    Problem Symptoms Table

    PROBLEM SYMPTOMS TABLE NOTICE: If the main body ECU (multiplex network body ECU) is replaced, refer to the Registration. Click here HINT: Use the table below to help determine the cause of problem symptoms...

    Data List / Active Test

    DATA LIST / ACTIVE TEST DATA LIST HINT: Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts...

    Other information:

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Clearance Light/Daytime Running Light Circuit


    DESCRIPTION Clearance light function: When the main body ECU (multiplex network body ECU) receives the light control switch position signal, it sends an illumination request signal to the light control LED ECU and illuminates the clearance lights. Daytime running light function: When the operation conditions of the daytime running lights are met, the main body ECU (multiplex network body ECU) sends an illumination request signal to the light control LED ECU and illuminates the daytime running lights...

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


    INSPECTION PROCEDURE 1. INSPECT OCCUPANT DETECTION SENSOR (SEPARATE TYPE FRONT SEAT CUSHION PAD) (a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition If the result is not as specified, replace the occupant detection sensor (separate type front seat cushion pad)...

    Categories

    Liftgate/Trunk Lid

    WARNING

    Never allow a person to ride in the luggage compartment/trunk

    Allowing a person to ride in the luggage compartment/trunk is dangerous. The person in the luggage compartment/trunk could be seriously injured or killed during sudden braking or a collision.

    Do not drive with the liftgate/trunk lid open

    read more

     
    Copyright © 2022 www.toyaris4.com