IMMOBILISER SYSTEM(w/o Smart Entry and Start System), Diagnostic DTC:B2793, B2797

DTC Code	DTC Name
B2793	Transponder Chip Malfunction
B2797	Communication Malfunction No. 1

DESCRIPTION

DTC B2793 is stored when a malfunction is found in the door control transmitter assembly during key ID code registration or a key ID code is not registered normally. Replace the door control transmitter assembly if key ID code registration cannot be performed normally and this DTC is output.
DTC B2797 is stored when a door control transmitter assembly with a BCC malfunction is inserted into the ignition key cylinder.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B2793	Transponder Chip Malfunction	A transponder chip malfunction (1 trip detection logic*).	Door control transmitter assembly	DTC Output Confirmation Operation: Insert the door control transmitter assembly into the ignition key cylinder.
B2797	Communication Malfunction No. 1	A door control transmitter assembly with a BCC malfunction is inserted into the ignition key cylinder (1 trip detection logic*).	Door control transmitter assembly	DTC Output Confirmation Operation: Insert the door control transmitter assembly into the ignition key cylinder.

*: 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 No.	Data List and Active Test
B2793	-
B2797	-

CAUTION / NOTICE / HINT

Note

If the door control transmitter assembly is replaced, refer to Service Bulletin.
After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

PROCEDURE

REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY

Replace the door control transmitter assembly.

Result

Proceed to
NEXT

NEXT

END (DOOR CONTROL TRANSMITTER ASSEMBLY WAS DEFECTIVE)