Toyota Yaris: Can Communication System / Steering Angle Sensor Communication Stop Mode

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual / Power Source & Network / Networking / Can Communication System / Steering Angle Sensor Communication Stop Mode

DESCRIPTION

Detection Item

Symptom

Trouble Area

Steering Angle Sensor Communication Stop Mode

Communication stop for "Spiral cable (Steering Angle Sensor)" is indicated on the "Communication Bus Check" screen of the GTS.

Click here

  • Steering sensor branch line or connector
  • Power source circuit of steering sensor
  • Steering sensor ground circuit
  • Steering sensor

WIRING DIAGRAM

CAUTION / NOTICE / HINT

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

NOTICE:

  • Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

    Click here

  • Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) auxiliary battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.
  • 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

  • Some parts must be initialized and set when replacing or removing and installing parts.

    Click here

  • After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.

    DTC check procedure: Turn the ignition switch to ON and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.

  • After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed as normal.

    Click here

  • Inspect the fuses for circuits related to this system before performing the following procedure.

HINT:

  • Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.
  • When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.

PROCEDURE

1.

CHECK FOR OPEN IN CAN BUS LINES (STEERING SENSOR BRANCH LINE)

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

(b) Disconnect the steering sensor connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

H39-3 (CANH) - H39-8 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

54 to 69 Ω

*a

Front view of wire harness connector

(to Steering Sensor)

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (STEERING SENSOR)

OK

2.

CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

H39-6 (ESS) - Body ground

Cable disconnected from negative (-) auxiliary battery terminal

Below 1 Ω

*a

Front view of wire harness connector

(to Steering Sensor)

(b) Reconnect the cable to the negative (-) auxiliary battery terminal.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

H39-4 (BAT) - Body ground

Ignition switch off

11 to 14 V

H39-9 (IGR) - Body ground

Ignition switch ON

11 to 14 V

OK

REPLACE STEERING SENSOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

    Power Steering ECU Communication Stop Mode

    DESCRIPTION Detection Item Symptom Trouble Area Power Steering ECU Communication Stop Mode Communication stop for "Power Steering (EPS)" is indicated on the "Communication Bus Check" screen of the GTS...

    ECM Communication Stop Mode

    DESCRIPTION Detection Item Symptom Trouble Area ECM Communication Stop Mode Communication stop for "ECM (Engine)" is indicated on the "Communication Bus Check" screen of the GTS...

    Other information:

    Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Door Control Switch


    ComponentsCOMPONENTS ILLUSTRATION *1 MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WITH FRONT ARMREST BASE UPPER PANEL *2 MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY *3 FRONT ARMREST BASE UPPER PANEL RH - - RemovalREMOVAL PROCEDURE 1. REMOVE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WITH FRONT ARMREST BASE UPPER PANEL Click here 2...

    Toyota Yaris XP210 (2020-2024) Owner's Manual: Fuse Replacement


    Replacing the fuses on the vehicle’s left side If the electrical system does not work, first inspect the fuses on the vehicle’s left side. Make sure the ignition is switched off, and other switches are off. Open the fuse panel cover. Pull the fuse straight out with the fuse puller provided on the fuse block located in the engine compartment...

    Categories

    Key Suspend Function

    If a key is left in the vehicle, the functions of the key left in the vehicle are temporarily suspended to prevent theft of the vehicle.

    To restore the functions, press the unlock button on the functions-suspended key in the vehicle.

    read more

     
    Copyright © 2024 www.toyaris4.com