ENGINE IMMOBILISER SYSTEM(w/ Entry and Start System), Diagnostic DTC:B2784

DTC Code DTC Name
B2784 Antenna Coil Open / Short

DESCRIPTION

This DTC is stored when there is an open or short malfunction in the transponder key amplifier coil (built into the engine switch).

DTC Code

DTC Detection Condition

Trouble Area

B2784

The transponder key amplifier coil is open/shorted.

  • Certification ECU

  • Engine switch

PROCEDURE

  1. REPLACE ENGINE SWITCH

    1. for 1ZR-FAE:

      1. Temporarily replace the engine switch with a new or normally functioning one (Click here).

    2. for 2ZR-FAE:

      1. Temporarily replace the engine switch with a new or normally functioning one (Click here).

    3. for 1WW:

      1. Temporarily replace the engine switch with a new or normally functioning one (Click here).

  2. CLEAR DTC

    1. Clear the DTCs (Click here).

  3. CHECK FOR DTC

    1. Check for DTCs (Click here).

      OK

      DTC B2784 is not output.

    END (ENGINE SWITCH IS DEFECTIVE)

    REPLACE CERTIFICATION ECU