THEFT DETERRENT SYSTEM (w/ Entry and Start System), Diagnostic DTC:B276A

DTC Code DTC Name
B276A Short to GND in Tilt Sensor Signal Circuit

DESCRIPTION

The yaw rate sensor conducts a self-diagnosis immediately after power is supplied to the sensor (when the theft deterrent system is set).

This DTC is stored when terminal CSIF of the yaw rate sensor has not received a signal for 5 seconds or more.

DTC Code DTC Detection Condition Trouble Area
B276A

After normal/trouble signal is output from the yaw rate sensor as result of self-diagnosis, the following malfunction is detected:

Terminal CSIF of the yaw rate sensor has not received signal for 5 seconds or more

  • Yaw rate sensor

  • Certification ECU (Smart key ECU assembly)

  • Harness or connector

WIRING DIAGRAM

A0158KEE02

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS OR CONNECTOR (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] - YAW RATE SENSOR)

    A01560YE02

    1. Disconnect the E30 ECU connector.

    2. Disconnect the E50 sensor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E30-21 (CSIF) - E50-5 (CSIF) Always Below 1 Ω
      E30-21 (CSIF) or E50-5 (CSIF) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK YAW RATE SENSOR (OPERATION)


    1. Temporarily replace the yaw rate sensor that has a tilt determining function with a new or normally functioning one Click here.

    2. Check that the system operates normally.

      OK
      DTC B276A is not output.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (YAW RATE SENSOR IS FAULTY)