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:

Diagnosis System
DIAGNOSIS SYSTEM 1. CHECK DLC3 (a) Check the DLC3 (See page ). 2. FUNCTION OF P/S WARNING LIGHT (a) When a malfunction is detected in the power steering system, the P/S warning light on the accessory meter comes on to inform the driver of the malfunctio ...

Calibration
CALIBRATION 1. SELECT COMPASS DISPLAY MODE (a) The AUTO switch allows selection of the compass display. 2. PERFORM CALIBRATION (a) Because each vehicle has its own magnetic field, calibration should be performed. The calibration function is used to compe ...

Electrical Key Oscillator(for Front Floor)
Components COMPONENTS ILLUSTRATION Installation INSTALLATION PROCEDURE 1. INSTALL ELECTRICAL KEY OSCILLATOR (a) Engage the clamp and install the electrical key oscillator. NOTICE: Be careful when installing the electrical key osci ...