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:

Throttle Actuator Control Throttle Body Range / Performance (P2119)
DESCRIPTION The electronic throttle control system is composed of the throttle actuator, throttle position sensor, accelerator pedal position sensor, and ECM. The ECM operates the throttle actuator to regulate the throttle valve in response to driver inpu ...

Removal
REMOVAL CAUTION / NOTICE / HINT NOTICE: If automatic transaxle assembly parts are replaced, refer to Parts Replacement Compensation Table to determine if any additional operations are necessary (See page ). PROCEDURE 1. REMOVE ENGINE ASSEMBLY WITH TR ...

Installation
INSTALLATION PROCEDURE 1. REPAIR INSTRUCTION (a) Clean the vehicle body surface. (1) Using a heat light, heat the vehicle body surface. Heating Temperature Item Temperature Vehicle Body 40 to 60°C (104 t ...