Toyota Venza: Antenna Coil Open / Short (B2784)

Toyota Venza Service Manual / Theft Deterrent / Keyless Entry / Engine Immobiliser System(w/ Smart Key System) / Antenna Coil Open / Short (B2784)

DESCRIPTION

This DTC is stored when there is an open or short in the transponder key coil (built into the engine switch).

DTC No.	DTC Detection Condition	Trouble Area
B2784	Transponder key coil is open or shorted.	Certification ECU (Smart key ECU assembly) Engine switch

CAUTION / NOTICE / HINT

NOTICE:

If the certification ECU (smart key ECU assembly) is replaced, register the key (See page ).

PROCEDURE

1.	CHECK DTC OUTPUT

(a) Clear the DTCs (See page ).

(b) Recheck for DTCs (See page ).

OK:

DTC B2784 is not output.

USE SIMULATION METHOD TO CHECK

2.	REPLACE ENGINE SWITCH

(a) Replace the engine switch (See page for
2GR-FE, See page for 1AR-FE)).

3.	CHECK DTC OUTPUT

(a) Clear the DTCs (See page ).

(b) Recheck for DTCs (See page ).

OK:

DTC B2784 is not output.

END (ENGINE SWITCH WAS DEFECTIVE)

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

Engine Immobiliser System Malfunction (B2799)

DESCRIPTION This DTC is stored when one of the following occurs: 1) the ECM detects an error in its own communication with the certification ECU (smart key ECU assembly); 2) the ECM detects an er ...

Security Indicator Light Circuit

DESCRIPTION The security indicator light blinks continuously due to a continuous signal received from the certification ECU (smart key ECU assembly) while the engine immobiliser is set. WIRING D ...

Other materials about Toyota Venza:

Clearance Warning Buzzer Circuit
DESCRIPTION This circuit consists of the No. 1 clearance warning buzzer and clearance warning ECU assembly. An ECU-excited type buzzer is used. The ECU operates the buzzer using a sound pattern that changes depending on the distance to the obstacle. WIRI ...

Removal
REMOVAL PROCEDURE 1. REMOVE REAR DOOR SCUFF PLATE 2. DISCONNECT REAR DOOR OPENING TRIM WEATHERSTRIP (a) Remove the rear part of the rear door opening trim weatherstrip to the extent that allows removal of the deck trim side panel assembly ...

Dinghy towing
Your vehicle is not designed to be dinghy towed (with four wheels on the ground) behind a motor home. NOTICE - To avoid serious damage to your vehicle Do not tow your vehicle with four wheels on the ground. - To prevent causing serious dama ...