CAN COMMUNICATION SYSTEM (w/ VSC) Steering Angle Sensor Communication Stop Mode

DESCRIPTION

Detection Item Symptom Trouble Area
Steering Angle Sensor Communication Stop Mode

When either condition below is met:


  • Spiral cable (Steering Angle Sensor) is not displayed on "Bus Check".

  • "Steering Angle Sensor Communication Stop Mode" in "DTC Combination Table" applies.

  • Power source or inside steering angle sensor

  • Steering angle sensor branch wire or connector

  • Spiral cable (steering angle sensor)

WIRING DIAGRAM

A01DX1PE03

INSPECTION PROCEDURE

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. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL


    1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

      Note

      When disconnecting the cable from the negative (-) battery terminal, some systems need to be initialized after the cable is reconnected Click here.


    NEXT

  2. CHECK FOR OPEN IN CAN BUS WIRE (STEERING ANGLE SENSOR BRANCH WIRE)


    1. A01DXETE06

      Disconnect the S37 steering angle sensor connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      S37-4 (CANH) - S37-3 (CANL) Ignition switch off 54 to 69 Ω

    NG

    REPAIR OR REPLACE STEERING ANGLE SENSOR BRANCH WIRE OR CONNECTOR (CANH, CANL)

    OK

  3. CHECK HARNESS AND CONNECTOR (STEERING ANGLE SENSOR - BATTERY AND BODY GROUND)


    1. Reconnect the cable to the negative (-) battery terminal.

      Note

      When disconnecting the cable from the negative (-) battery terminal, some systems need to be initialized after the cable is reconnected Click here.

    2. A01DXETE07

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      S37-2 (ESS) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      S37-5 (IG) - Body ground Ignition switch ON 11 to 14 V
      S37-6 (BAT) - Body ground Always

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE SPIRAL CABLE (STEERING ANGLE SENSOR) Click here