THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): B279C95,B279C; Engine Immobiliser System Incorrect Assembly; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000001GV8C
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): B279C95,B279C; Engine Immobiliser System Incorrect Assembly; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]

DTC

B279C95

Engine Immobiliser System Incorrect Assembly

DTC

B279C

Theft Deterrent System Presence Detection

DESCRIPTION

If an ECM that is incompatible with the immobiliser system is installed, the ECM stores this DTC.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B279C	Theft Deterrent System Presence Detection	An ECM that is incompatible with immobiliser system is installed.	ECM	DTC Output Confirmation Operation: Check for DTCs.
B279C95	Engine Immobiliser System Incorrect Assembly	An ECM that is incompatible with immobiliser system is installed.	ECM	DTC Output Confirmation Operation: Check for DTCs.

Vehicle Condition when Malfunction Detected	Fail-safe Operation when Malfunction Detected
Engine cannot be started	-

DTC No.	Data List and Active Test
B279C*1	-
B279C95*2	-

NOTICE:

If the ECM is replaced, refer to Registration.
Click here
After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

1.	REPLACE ECM

(a) Replace the ECM.

for M20A-FKS: Click here

for 2ZR-FAE: Click here

END (ECM WAS DEFECTIVE)