CAN COMMUNICATION SYSTEM Yaw Rate Sensor Communication Stop Mode

DESCRIPTION

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

  • Power source circuit of yaw rate sensor

  • Yaw rate sensor branch wire or connector

  • Yaw rate sensor

WIRING DIAGRAM

A0138MDE02

INSPECTION PROCEDURE

Note


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

  • 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 (YAW RATE SENSOR BRANCH WIRE)


    1. A013659E03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Yaw Rate Sensor)

      Turn the ignition switch to off.

    2. Disconnect the yaw rate sensor connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      H25-2 (CANH) - H25-3 (CANL) ignition switch off 54 to 69 Ω

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO YAW RATE SENSOR (CAN-H, CAN-L)

    OK

  2. CHECK HARNESS AND CONNECTOR (IGA, GNDA)


    1. A013659E04
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Yaw Rate Sensor)

      Disconnect the yaw rate sensor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H25-4 (GNDA) - 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
      H25-1 (IGA) - Body ground Ignition Switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE YAW RATE SENSOR Click here