Toyota Yaris: Cxpi Communication System / Terminals Of Ecu

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Power Source & Network / Networking / Cxpi Communication System / Terminals Of Ecu

TERMINALS OF ECU

NOTICE:

  • After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

    Click here

  • When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

    Click here

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

(a) Remove the main body ECU (multiplex network body ECU).

Click here

*1

Power Distribution Box Assembly

*2

Main Body ECU (Multiplex Network Body ECU)

(b) Reconnect the power distribution box assembly connectors.

Click here

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

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

MB-13 (GND1) - Body ground

Ground

Always

Below 1 Ω

MB-26 (BECU) - Body ground

Auxiliary battery power supply

Ignition switch off

11 to 14 V

MB-27 (IGR) - Body ground

IG power supply

Ignition switch off

Below 1 V

Ignition switch ON

11 to 14 V

(d) Install the main body ECU (multiplex network body ECU).

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

4D-5 - Body ground

CXPI communication line

Ignition switch ON

Pulse generation

4E-43 - Body ground

Rear window defogger signal (output)

Rear window defogger switch off

Below 1.5 V

Rear window defogger switch on

8 to 14 V

4B-2 - Body ground

Mirror heater drive signal (output)

Rear window defogger switch off

Below 1.5 V

Rear window defogger switch on

8 to 14 V

4C-10 - Body ground

Power return mirror motor drive signal (output)

Outer rear view mirror assembly moves to the return position.

Below 1.5 V

Outer rear view mirror assembly not move.

8 to 14 V

4C-21 - Body ground

Power retract mirror motor drive signal (output)

Outer rear view mirror assembly moves to the retract position

Below 1.5 V

Outer rear view mirror assembly not move

8 to 14 V

SEMICONDUCTOR POWER INTEGRATION ECU

(a) Disconnect the cable from the negative (-) auxiliary battery terminal.

(b) Disconnect the A85 and A86 semiconductor power integration ECU connectors.

(c) Connect the cable to the negative (-) auxiliary battery terminal.

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

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

A85-1 (+B) - Body ground

Auxiliary battery power supply

Ignition switch off

8 to 14 V

A86-5 (-S) - Body ground

Light control LED ECU RH operation signal input

Headlight not illuminated

6 V or higher

Headlight illuminated

Below 1.7 V

A86-16 (GND2) - Body ground

Ground

Always

Below 1 Ω

A86-20 (IG) - Body ground

IG power supply

Ignition switch off

Below 1.5 V

Ignition switch ON

8 to 14 V

A86-24 (-S) - Body ground

Light control LED ECU LH operation signal input

Headlight not illuminated

6 V or higher

Headlight illuminated

Below 1.7 V

A86-26 (GND1) - Body ground

Ground

Always

Below 1 Ω

(e) Reconnect the A85 and A86 semiconductor power integration ECU connectors.

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

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

A86-8 (CXPI) - Body ground

CXPI communication line

Ignition switch ON

Pulse generation

A86-1 (L) - Body ground

Light control LED ECU LH operation signal output

Headlight not illuminated

Below 3.0 V

Headlight illuminated

8 V or higher

A86-2 (L)- Body ground

Light control LED ECU RH operation signal output

Headlight not illuminated

Below 3.0 V

Headlight illuminated

8 V or higher

A86-17 (L) - Body ground

Front fog light RH operation signal output

Front fog light not illuminated

Below 3.0 V

Front fog light illuminated

8 V or higher

A86-18 (L) - Body ground

Front fog light LH operation signal output

Front fog light not illuminated

Below 3.0 V

Front fog light illuminated

8 V or higher

    How To Proceed With Troubleshooting

    CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the CXPI communication system. *: Use the GTS. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2...

    Dtc Check / Clear

    DTC CHECK / CLEAR CHECK DTC (a) Enter the following menus: Body Electrical / Main Body / Trouble Codes. (b) Check for DTCs. Body Electrical > Main Body > Trouble Codes CLEAR DTC (a) Enter the following menus: Body Electrical / Main Body / Clear DTCs...

    Other information:

    Toyota Yaris XP210 (2020-2022) Owner's Manual: Voice Command List


    Voice command When the talk button is pressed and the following command is spoken, the audio or navigation can be operated. The commands in the () can be omitted. The specified name and number are put into the {}. Standard command Communication (phone) related command Entertainment (audio) related command Navigation related command (if equipped) For the navigation screen voice commands, refer to the separate navigation system manual...

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


    REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the No. 2 air fuel ratio sensor removal/installation are shown below...

    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