Dtc B2795 Unmatched Key Code

Vehicle Interior. Yaris. Ncp93, 131
Theft Deterrent Keyless Entry. Yaris. Ncp93, 131

DESCRIPTION

INSPECTION PROCEDURE

CLEAR DTC

CHECK FOR DTC

CHECK IGNITION SWITCH (OPERATION)

REREGISTER MALFUNCTIONING KEY

REPLACE TRANSPONDER KEY ECU ASSEMBLY

REGISTER KEY

REGISTER ECU COMMUNICATION ID

CLEAR DTC

CHECK FOR DTC

DTC B2795 Unmatched Key Code


DESCRIPTION

This DTC is stored when a key with a different vehicle serial number is inserted into the ignition key cylinder.

DTC Code
DTC Detection Condition
Trouble Area
DTC Output Confirmation Operation
B2795
A key with a different vehicle serial number is inserted into the ignition key cylinder (1 trip detection logic*).
  1. Key
  2. Transponder key ECU assembly
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
B2795
Different Serial Number

INSPECTION PROCEDURE

NOTICE:
  1. When replacing the key or transponder key ECU assembly, refer to the Registration (YARIS_NCP93 RM00000120Y021X.html).
  2. 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 (YARIS_NCP93 RM000001TCQ01OX.html).


NEXT


2.CHECK FOR DTC

  1. Insert and remove each registered key one at a time, and check for DTCs each time (YARIS_NCP93 RM000001TCQ01OX.html).

    HINT:
    1. Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.
    2. If DTC B2795 is stored, check for DTCs with the next key after clearing the DTCs.
    OK:
    DTC B2795 is not output.
    Result
    Result
    		Proceed to
    OK
    		A
    NG (any key)
    		B
    NG (all keys)
    		C


B
Go to step 3

C
Go to step 5
A

USE SIMULATION METHOD TO CHECK (YARIS_NCP93 RM00000135202EX.html)

3.CHECK IGNITION SWITCH (OPERATION)

  1. Check that the ignition switch can be turned to ON using the key for which the DTC was stored.

    OK:
    Ignition switch can be turned to ON using the key (for which the DTC was stored).


NG
REPLACE KEY THAT CANNOT START ENGINE
OK


4.REREGISTER MALFUNCTIONING KEY

  1. Clear the DTCs (YARIS_NCP93 RM000001TCQ01OX.html).

  1. Reregister the key code with the transponder key ECU assembly (YARIS_NCP93 RM00000120Y021X.html).

    OK:
    Registration procedure can be completed.


NG
REPLACE KEY THAT CANNOT START ENGINE
OK

END (KEY CODE IS NOT REGISTERED NORMALLY)

5.REPLACE TRANSPONDER KEY ECU ASSEMBLY

  1. Replace the transponder key ECU assembly (YARIS_NCP93 RM000004E7M008X.html).


NEXT


6.REGISTER KEY

  1. Register the key (YARIS_NCP93 RM00000120Y021X.html).


NEXT


7.REGISTER ECU COMMUNICATION ID

  1. Register the ECU communication ID (YARIS_NCP93 RM00000120Y021X.html).


NEXT


8.CLEAR DTC

  1. Clear the DTCs (YARIS_NCP93 RM000001TCQ01OX.html).


NEXT


9.CHECK FOR DTC

  1. Check for DTCs (YARIS_NCP93 RM000001TCQ01OX.html).

    HINT:
    1. Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.
    2. If DTC B2795 is stored, check for DTCs with the next key after clearing the DTCs.
    OK:
    DTC B2795 is not output.


NG
REPLACE KEY THAT CANNOT START ENGINE
OK

END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE)