Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GV7Y
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 - 09/2022]
Title: THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): B2795; Unmatched Key Code; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]

DTC

B2795

Unmatched Key Code

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

B2795

Unmatched Key Code

A door control transmitter assembly with a different vehicle serial number is inserted into the ignition key cylinder (1 trip detection logic*).
  • Door control transmitter assembly
  • Transponder key ECU 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 Items

DTC No.

Data List and Active Test

B2795

-

CAUTION / NOTICE / HINT

NOTICE:

  • If the transponder key ECU assembly or a door control transmitter assembly is replaced, refer to Registration.

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  • After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Immobiliser > Clear DTCs

NEXT

2.

CHECK FOR DTC

(a) Perform "DTC Output Confirmation Operation" procedure.

(b) Check for DTCs.

Body Electrical > Immobiliser > Trouble Codes

HINT:

If DTC B2795 is stored, check for DTCs with the next door control transmitter assembly after clearing the DTCs.

OK:

DTC B2795 is not output.

Result

Proceed to

B2795 is not output

A

DTC B2795 is output for all of the door control transmitter assemblies

B

DTC B2795 is output for any of the door control transmitter assemblies

C
A

USE SIMULATION METHOD TO CHECK

B

REPLACE TRANSPONDER KEY ECU ASSEMBLY 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL

C

3.

CHECK OPERATION (IG ON)

(a) Check that the ignition switch can be turned to ON using the door control transmitter assembly for which the DTC was stored.

OK:

Ignition switch can be turned to ON using the door control transmitter assembly (for which the DTC was stored).

NG

REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY THAT DTC IS OUTPUT
OK

4.

REREGISTRATION

(a) Clear the DTCs.

Body Electrical > Immobiliser > Clear DTCs

(b) Reregister the key ID code with the transponder key ECU assembly.

Click here 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2019]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): REGISTRATION 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2019 - 04/2020]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): REGISTRATION 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): REGISTRATION

OK:

Registration procedure can be completed.

OK

END (DOOR CONTROL TRANSMITTER ASSEMBLY REGISTRATION FAILURE)
NG

REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY