Toyota Venza manuals

Toyota Venza: 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.


OK

USE SIMULATION METHOD TO CHECK


NG

2.

REPLACE ENGINE SWITCH

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



NEXT

3.

CHECK DTC OUTPUT

(a) Clear the DTCs (See page ).


(b) Recheck for DTCs (See page ).


OK:

DTC B2784 is not output.


OK

END (ENGINE SWITCH WAS DEFECTIVE)


NG

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:

Data List / Active Test
DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful bec ...

Main Body ECU Vehicle Information Reading/Writing Process Malfunction (B15F6)
DESCRIPTION This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the audio and visual system vehicle customization screen. HINT: The main body ECU (multiplex network body ECU) controls t ...

Removal
REMOVAL PROCEDURE 1. REMOVE AUTOMATIC TRANSAXLE ASSEMBLY (for 2WD) When Not Using the Engine Support Bridge: (See page ) When Using the Engine Support Bridge: (See page ) 2. REMOVE AUTOMATIC TRANSAXLE ASSEMBLY (for AWD) When Not Using the Engine Supp ...

© 2016-2025 Copyright www.tovenza.com

0.1207