Code No.B2419 LF antenna voltage short


caution When replacing the ECU, always check that the communication circuit is normal.

DIAGNOSTIC FUNCTION



note When the diagnosis code No.B2419 is set, KOS-ECU does not perform the certification with the keyless operation key.

JUDGMENT CRITERIA



PROBABLE CAUSES



  • Damaged wiring harness and connectors
  • Malfunction of the KOS-ECU

DIAGNOSIS PROCEDURE


STEP 1. Check the wiring harness between KOS-ECU connector and each inside and outside transmission antenna assembly connector.




  • Check of short to power supply, short to earth, and open circuit in EDRP, EDRG line between KOS-ECU connector and outside transmission antenna assembly (driver’s side) connector
  • Check of short to power supply, short to earth, and open circuit in EASP, EASG line between KOS-ECU connector and outside transmission antenna assembly (passenger’s side) connector
  • Check of short to power supply, short to earth, and open circuit in INFP, INFG line between KOS-ECU connector and inside transmission antenna assembly (front) connector
  • Check of short to power supply, short to earth, and open circuit in INRP, INRG line between KOS-ECU connector and inside transmission antenna assembly (rear) connector
  • Check of short to power supply, short to earth, and open circuit in EGTP, EGTG line between KOS-ECU connector and outside transmission antenna assembly (tailgate) connector

Q. Is the check result normal?





STEP 2. Check whether the diagnosis code is reset.


(1)Erase the diagnosis code.
(2)Turn the power supply mode of the engine switch from OFF to ON.
(3)Check if the diagnosis code is set.

Q. Is the diagnosis code set?