Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJLB
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 08/2016]
Title: THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/o Smart Key System): B279C; Theft Deterrent System Presence Detection; 2016 MY Sienna [12/2015 - 08/2016]

DTC

B279C

Theft Deterrent System Presence Detection

DESCRIPTION

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

DTC No.

DTC Detection Condition

Trouble Area

B279C

An ECM that is incompatible with engine immobiliser system is installed.

ECM

CAUTION / NOTICE / HINT

NOTICE:

If the ECM is replaced, register the ECU communication ID (See page 2016 - 2020 MY Sienna [12/2015 -        ]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/o Smart Key System): REGISTRATION ).

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Clear the DTCs (See page 2016 MY Sienna [12/2015 - 08/2016]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/o Smart Key System): DTC CHECK / CLEAR ).

(b) Recheck for DTCs (See page 2016 MY Sienna [12/2015 - 08/2016]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/o Smart Key System): DTC CHECK / CLEAR ).

OK:

DTC B279C is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

REPLACE ECM