Toyota Yaris: Cxpi Communication System / How To Proceed With Troubleshooting

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Power Source & Network / Networking / Cxpi Communication System / 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.

INSPECT AUXILIARY BATTERY VOLTAGE

(a) Measure the auxiliary battery voltage with the ignition switch off.

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

NEXT

3.

CHECK POWER INTEGRATION SYSTEM*

(a) Use the GTS to check if the power integration system is functioning normally.

Click here

Result

Proceed to

Power integration system DTCs are not output

A

Power integration system DTCs are output

B

B

GO TO POWER INTEGRATION SYSTEM

A

4.

CHECK FOR DTC*

(a) Check for DTCs and make a note of any codes that are output.

Click here

(b) Clear the DTCs.

Body Electrical > Main Body > Clear DTCs

(c) Recheck for DTCs.

Body Electrical > Main Body > Trouble Codes
DTCs output

GO TO DIAGNOSTIC TROUBLE CODE CHART

No DTCs output

5.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test

Click here

(b) Terminals of ECU

Click here

NEXT

6.

ADJUST, REPAIR OR REPLACE

NEXT

END

    System Description

    SYSTEM DESCRIPTION CXPI COMMUNICATION SYSTEM DESCRIPTION The multiplex communication system [CXPI] is used for communication systems between body system components...

    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...

    Other information:

    Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Data List / Active Test


    DATA LIST / ACTIVE TEST DATA LIST NOTICE: Some Data List values may vary significantly due to slight measurement errors, differences in the measurement environment, and changes in the vehicle over time, making it difficult to indicate clear evaluation standards...

    Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Installation


    INSTALLATION PROCEDURE 1. INSTALL BACK DOOR OUTSIDE GARNISH SUB-ASSEMBLY (a) Engage the clips to install the back door outside garnish sub-assembly as shown in the illustration. Install in this Direction (1) Install in this Direction (2) (b) Install the 4 bolts...

    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 © 2026 www.toyaris4.com