AIRBAG SYSTEM, Diagnostic DTC:B1000

DTC Code DTC Name
B1000 Airbag ECU Assembly Malfunction

DESCRIPTION

The airbag ECU assembly consists of an airbag sensor, safing sensor, drive circuit, diagnosis circuit, ignition control circuit, etc.

If the airbag ECU assembly receives signals from the airbag sensor, it determines whether the SRS should be activated.

DTC B1000 is stored when a malfunction is detected in the airbag ECU assembly.

DTC Code DTC Detection Condition Trouble Area
B1000 An airbag ECU assembly malfunction. Airbag ECU assembly

INSPECTION PROCEDURE

Note

When disconnecting the cable from the negative (-) battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected Click here.

PROCEDURE


  1. CHECK DTC


    1. Turn the ignition switch to ON, and wait at least 60 seconds.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC B1000 is output A
      DTC B1000 and other DTCs are output B

      Note

      If only DTC B1000 is output, do not clear the DTCs. Instead, immediately replace the airbag ECU assembly.

      Tech Tips

      If any DTCs other than DTC B1000 are output, troubleshoot those DTCs first.


    B

    Go to DIAGNOSTIC TROUBLE CODE CHART Click here

    A

    REPLACE AIRBAG ECU ASSEMBLY Click here