Code No.B1703: Transponder ID unmatched



caution Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.

TROUBLE JUDGEMENT


When the key ID that is sent from the transponder does not correspond to the key ID registered in the ETACS-ECU, the ETACS-ECU sets diagnosis code No.B1703.
note Diagnosis code No.B1703 is always set along with MPI system diagnosis code No.P0513.

PROBABLE CAUSES



  • Ignition key (key ID) is not registered
  • Malfunction of ETACS-ECU

DIAGNOSIS PROCEDURE


Register all the ignition key IDs again, and recheck the diagnosis code.


(1)Register all the ignition keys again (Refer to ).
(2)Turn the ignition switch from the "LOCK" (OFF) position to the ON position.
(3)Check that diagnosis code No.B1703 is not set again.

Q. Is diagnosis code No.B1703 set?

Replace the ETACS-ECU (Refer to ). After registering the ID codes, check if the diagnosis code is set.
The diagnosis is complete. If another diagnosis code is set, refer to Diagnosis Code Chart .