CAN COMMUNICATION SYSTEM Steering Angle Sensor Communication Stop Mode

DESCRIPTION

Detection Item Symptom Trouble Area
Steering Angle Sensor Communication Stop Mode

Either condition is met:


  • "Steering Angle Sensor" is not displayed on "Bus Check".


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

  • Power source or inside spiral cable sub-assembly (steering angle sensor)

  • Spiral cable sub-assembly (steering angle sensor) branch wire or connector

  • Spiral cable sub-assembly (steering angle sensor)

WIRING DIAGRAM

A005UDYE03

INSPECTION PROCEDURE

Note

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


      • w/ Navigation System (for HDD):

        After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.

      • When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.


    NEXT

  2. CHECK FOR OPEN IN CAN BUS WIRE (SPIRAL CABLE BRANCH WIRE)


    1. A005TH5E01
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Spiral Cable Sub-assembly)

      Disconnect the D71 spiral cable sub-assembly (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
      D71-4 (CANH) - D71-3 (CANL) Ignition switch off 54 to 69 Ω

    NG

    REPAIR OR REPLACE SPIRAL CABLE BRANCH WIRE OR CONNECTOR (CANH, CANL)

    OK

  3. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - BATTERY AND BODY GROUND)


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

      Note

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.

    2. A005TH5E03
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Spiral Cable Sub-assembly)

      Disconnect the D71 spiral cable sub-assembly (steering angle sensor) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D71-2 (ESS) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D71-6 (BAT) - Body ground Always 11 to 14 V
      D71-5 (IG) - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here