Toyota Venza: Open / Short in Steering Lock ECU (B2781)

Toyota Venza Service Manual / Steering Column / Steering Lock System / Open / Short in Steering Lock ECU (B2781)

DESCRIPTION

If the steering lock ECU (steering lock actuator assembly) determines that there is a malfunction inside the ECU, it outputs this DTC. Diagnostic communication between the steering lock ECU (steering lock actuator assembly) and the Techstream is performed via the certification ECU as the steering lock ECU (steering lock actuator assembly) is not connected to CAN.

DTC No.	DTC Detecting Condition	Trouble Area
B2781	Steering lock motor drive circuit is defective. Both lock and unlock position sensors detect "ON".	Steering lock ECU (Steering lock actuator assembly)

CAUTION / NOTICE / HINT

HINT:

After replacing the steering lock ECU (steering lock actuator assembly), confirm the Initialization of the steering lock (See page ).

PROCEDURE

1.	REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)

HINT:

The steering lock ECU and steering lock actuator assembly are supplied as a single unit.

(a) Replace the steering lock ECU (steering lock actuator assembly) (See page ).

END

Power Source Control ECU Malfunction (B2782)

DESCRIPTION The power management control ECU controls the power supply to activate the steering lock motor. This prevents the steering wheel from being locked while the vehicle is moving. ...

Steering Lock Motor Drive Power Circuit

DESCRIPTION The steering lock ECU (steering lock actuator assembly) is connected to the power management control ECU. The steering lock ECU (steering lock actuator assembly) cannot activate the m ...

Other materials about Toyota Venza:

Power Steering ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Power Steering ECU Communication Stop Mode "EPS" is not displayed on "CAN Bus Check" screen of the Techstream. ...

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION (a) The certification ECU (smart key ECU assembly) control the vehicle smart key system functions. Smart key system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In ...

Installation
INSTALLATION CAUTION / NOTICE / HINT CAUTION: The nuts must not be reused. Make sure that the front seat frame assembly with adjuster is not deformed. If it is, replace it with a new one. PROCEDURE 1. INSTALL FRONT SEAT SIDE AIRBAG A ...