Theft Deterrent / Keyless Entry

Theft Deterrent System Presence Detection (B279C)

~1min read
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

When an ECM that is incompatible with engine immobiliser system is installed.

ECM

PROCEDURE
  1. CHECK DTC OUTPUT

(a) Clear the DTCs (See page ).


(b) Recheck for DTCs (See page ).


OK:

DTC B279C is not output.

Result

Proceed to

OK

A

NG (for 2GR-FE)

B

NG (for 1AR-FE)

C


A

USE SIMULATION METHOD TO CHECK


B

REPLACE ECM


C

REPLACE ECM

Test yourself

A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.