VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1279

DTC Code DTC Name
C1279 Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)

DESCRIPTION

DTC C1279 can be deleted when the yaw rate and acceleration sensor sends a yaw rate and/or acceleration signal or when Test Mode ends. DTC C1279 is output only in Test Mode.

DTC Code DTC Detection Condition Trouble Area
C1279 Detected only during Test Mode.

  • Sensor installation

  • Yaw rate and acceleration sensor

WIRING DIAGRAM

Refer to DTCs C1232, C1243 and C1245 Click here.

INSPECTION PROCEDURE

Note

When replacing the yaw rate and acceleration sensor, perform zero point calibration Click here.

PROCEDURE


  1. CHECK YAW RATE AND ACCELERATION SENSOR INSTALLATION


    1. Check that the yaw rate and acceleration sensor has been installed properly Click here.

      OK
      The sensor should be tightened to the specified torque.
      The sensor should not be installed in a tilted position.

    NG

    INSTALL YAW RATE AND ACCELERATION SENSOR CORRECTLY Click here

    OK

  2. INSPECT YAW RATE AND ACCELERATION SENSOR (IG TERMINAL)


    1. A017BT3E09

      Make sure that there is no looseness at the locking part and the connecting part of the connectors.

    2. Disconnect the yaw rate and acceleration sensor connector.

    3. Turn the ignition switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      O6-4 (IG) - Body ground Ignition switch on (IG) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG CIRCUIT)

    OK

  3. INSPECT YAW RATE AND ACCELERATION SENSOR (GND TERMINAL)


    1. A017BT3E10

      Turn the ignition switch off.

    2. 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

      Note

      Check the yaw rate and acceleration sensor signal after replacement Click here.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT)

    OK

    REPLACE YAW RATE AND ACCELERATION SENSOR Click here