CAN COMMUNICATION SYSTEM Yaw Rate Sensor Communication Stop Mode

DESCRIPTION

Detection Item Symptom Trouble Area
Yaw Rate Sensor Communication Stop Mode

  • "Yaw Rate/Decelerate Sensor" is not displayed on "Communication Bus Check" screen of intelligent tester

  • 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

A017CJVE34

INSPECTION PROCEDURE

Note


  • Turn the ignition switch off before measuring the resistance of CAN main wires and CAN branch wires.

  • After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not operating.

  • 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 the doors need to be opened in order to check the connectors, open the doors and leave them open.

Tech Tips


  • Operating the ignition switch, any other switches, or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.

  • Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below will help determine the cause of the malfunction.

PROCEDURE


  1. CHECK FOR OPEN IN CAN BUS WIRE (YAW RATE SENSOR BRANCH WIRE)


    1. Turn the ignition switch off.

    2. Disconnect the yaw rate sensor connector.

    3. A017DEAE04

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O6-3 (CANH) - O6-2 (CANL) Ignition switch off 54 to 69 Ω

    NG

    REPAIR OR REPLACE YAW RATE SENSOR BRANCH WIRE OR CONNECTOR

    OK

  2. CHECK WIRE HARNESS (IG, GND)


    1. Disconnect the yaw rate sensor connector.

    2. A017DEAE05

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O6-1 (GND) - Body ground Always Below 1 Ω

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

      Standard voltage
      Tester Connection Condition Specified Condition
      O6-4 (IG) - Body ground Ignition switch on (IG) 10 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE YAW RATE SENSOR Click here