Dtc B2784 Antenna Coil Open / Short

Vehicle Interior. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Theft Deterrent Keyless Entry. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

INSPECTION PROCEDURE

CLEAR DTC

CHECK FOR DTC

DTC B2784 Antenna Coil Open / Short


DESCRIPTION

The transponder key coil receives key code signals from the transponder chip in the key grip. The coil is built into the transponder key amplifier, which amplifies the key code signals and outputs the signals to the transponder key ECU assembly.

DTC Code
DTC Detection Condition
Trouble Area
DTC Output Confirmation Operation
B2784
The antenna coil built into the transponder key amplifier is open or shorted (determined by communication with transponder key ECU assembly) (1 trip detection logic*).
  1. Terminal VC5, TEXT or CODE is open.
  2. The antenna coil built into the transponder key amplifier is open.
Transponder key amplifier
Insert the key into the ignition key cylinder.
  1. *: Only output while a malfunction is present.

Vehicle Condition and Fail-safe Operation when Malfunction Detected
Vehicle Condition when Malfunction Detected
Fail-safe Operation when Malfunction Detected
Engine cannot be started.
-

Related Data List and Active Test
DTC Code
Data List and Active Test
B2784
Antenna Coil Status

INSPECTION PROCEDURE

NOTICE:
After performing repairs, perform the operation that fulfills the DTC output confirmation operation, and then confirm that no DTCs are output again.
1.CLEAR DTC

  1. Clear the DTCs (HILUX_TGN26 RM000000Z3I00TX.html).


NEXT


2.CHECK FOR DTC

  1. Check for DTCs (HILUX_TGN26 RM000000Z3I00TX.html).

    OK:
    DTC B2784 is not output.


NG
REPLACE TRANSPONDER KEY AMPLIFIER (HILUX_TGN26 RM0000037YH01PX.html)
OK

USE SIMULATION METHOD TO CHECK (HILUX_TGN26 RM000004QR7008X.html)