Code No.B2352 Antenna fail


caution Before replacing the ECU, ensure that the communication circuit is normal.

DIAGNOSIS FUNCTION



JUDGMENT CRITERIA



PROBABLE CAUSES



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

DIAGNOSIS PROCEDURE


STEP 1. Connector check: C-116 key slot connector


Q. Is the check result normal?





STEP 2. key slot check



Q. Is the check result normal?





STEP 3. Connector check: C-10 KOS-ECU connector


Q. Is the check result normal?





STEP 4. Check the wiring harness between the C-116 key slot connector terminal No. 1, 2 and the C-10 KOS-ECU connector terminal No. 1, 9.



  • Check the signal wires for open circuit.
note Before the wiring harness check, check the C-102 joint connector (3) <LH drive vehicles>, C-232 joint connector (5) <RH drive vehicles>, and repair if necessary.

Q. Is the check result normal?





STEP 5. Check whether the diagnosis code is reset.


(1)Open the driver’s door.
(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?