ENGINE IMMOBILISER SYSTEM, Diagnostic DTC:B2784

DTC Code DTC Name
B2784 Antenna Coil Open / Short

DESCRIPTION

This DTC is output when there is an open or short malfunction in the key coil (built into the power switch).

DTC Code DTC Detection Condition Trouble Area
B2784 Antenna coil is open/shorted

  • Certification ECU

  • Power switch

INSPECTION PROCEDURE

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTC Click here.


    NEXT

  2. CHECK FOR DTC


    1. Check for DTC Click here.

      OK
      DTC B2784 is not output.

    NG

    REPLACE POWER SWITCH Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  3. REPLACE POWER SWITCH


    1. Temporarily replace the power switch with a new one Click here.


    NEXT

  4. CLEAR DTC


    1. Clear the DTC Click here.


    NEXT

  5. CHECK FOR DTC


    1. Recheck for DTC Click here.

      OK
      DTC B2784 is not output.

    NG

    REPLACE CERTIFICATION ECU

    OK

    END (POWER SWITCH IS DEFECTIVE)