CAN COMMUNICATION SYSTEM Steering Angle Sensor Communication Stop Mode

DESCRIPTION

Detection Item Symptom Trouble Area
Steering Angle Sensor Communication Stop Mode Applies to "Steering Angle Sensor Communication Stop Mode" in "DTC combination table"

  • Power source circuit of steering sensor


  • Steering sensor main wire or connector

  • Steering sensor

WIRING DIAGRAM

A0137XUE27

INSPECTION PROCEDURE

Note


  • Turn the ignition switch to OFF before measuring the resistances of the CAN main wire and the CAN branch wire.

  • After the ignition switch is turned to OFF, check that the light reminder warning system is not in operation.

  • Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If doors need to be opened in order to check connectors, open the doors and leave them open.

    Tech Tips

    Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

PROCEDURE


  1. CHECK CAN BUS LINE FOR DISCONNECTION (STEERING SENSOR MAIN WIRE)


    1. A0136YUE01

      Turn the ignition switch to OFF.

    2. Disconnect the C43 steering sensor connector.

    3. Measure the resistance according to the value in the table below.

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      C43-10 (CANH) - C43-9 (CANL) ignition switch OFF 108 to 132 Ω

    NG

    REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO STEERING SENSOR (CAN-H, CAN-L)

    OK

  2. CHECK HARNESS AND CONNECTOR (IG, ESS)


    1. A0136YUE02

      Disconnect the C43 steering sensor connector.

    2. Measure the resistance according to the value in the table below.

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      C43-2 (ESS) - Body ground Always Below 1 Ω

    3. Measure the voltage according to the value in the table below.

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      C43-1 (IG) - Body ground Ignition Switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE STEERING SENSOR