Toyota Venza: Steering Lock Position Signal Circuit Malfunction (B2285)

Toyota Venza Service Manual / Theft Deterrent / Keyless Entry / Smart Key System(for Start Function) / Steering Lock Position Signal Circuit Malfunction (B2285)

DESCRIPTION

This DTC is stored when serial communication signals and LIN communication signals in the circuit between the power management control ECU and steering lock actuator assembly (steering lock ECU) are inconsistent.

DTC No.	DTC Detection Condition	Trouble Area
B2285	Cable and LIN information between the power management control ECU and steering lock actuator assembly (steering lock ECU) are inconsistent.	Power management control ECU Steering lock actuator assembly (steering lock ECU) Wire harness or connector

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

When the power management control ECU is replaced with a new one and the cable from the negative (-) battery terminal is connected, the power source mode becomes the on (IG) mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.
Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT:

Check the connector connection to the terminal to make sure that there is no abnormality such as a loose connection, deformation, etc.

PROCEDURE

1.	CHECK LIN COMMUNICATION SYSTEM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Clear the DTCs (See page ).

(e) Check if DTC B2287 is output.

OK:

DTC B2287 is not output.

GO TO LIN COMMUNICATION SYSTEM

2.	CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)

REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)

3.	CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - NO. 1 JUNCTION)

4.	INSPECT STEERING LOCK ACTUATOR ASSEMBLY

(a) Reconnect the D43 connector to the power management control ECU.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
D17-4 (SLP1) - Body ground	Steering locked	10 kΩ or higher
D17-4 (SLP1) - Body ground	Steering unlocked	Below 1 Ω

Text in Illustration

*1	Component with harness connected (Steering lock actuator assembly (steering Lock ECU))

REPLACE STEERING LOCK ACTUATOR ASSEMBLY

5.	CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - STEERING LOCK ECU)

(a) Disconnect the D43 connector from the power management control ECU.

(b) Disconnect the D17 connector from the steering lock actuator assembly (steering lock ECU).

Standard Resistance:

Tester Connection	Condition	Specified Condition
D43-3 (SLP) - D17-4 (SLP1)	Always	Below 1 Ω
D43-3 (SLP) - Body ground	Always	10 kΩ or higher

Text in Illustration

Front view of wire harness connector

(to Power Management Control ECU)

Front view of wire harness connector

(to Steering Lock Actuator Assembly (Steering Lock ECU))

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - STEERING LOCK ECU)

6.	READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Body Electrical / Power Source Control / Data List.

(e) Read the Data List according to the display on the Techstream.

Power Source Control

Tester Display	Measurement Item/Range	Normal Condition	Specified Condition
Steering Unlock Switch	Steering lock condition/ON or OFF	ON: Steering unlocked OFF Steering locked	-

Tester Display

Measurement Item/Range

Normal Condition

Specified Condition

Steering Unlock Switch

Steering lock condition/ON or OFF

ON: Steering unlocked

OFF Steering locked

OK:

ON (steering lock is unlocked) and OFF (steering lock is locked) appear on the screen.

REPLACE STEERING LOCK ACTUATOR ASSEMBLY

REPLACE POWER MANAGEMENT CONTROL ECU

Vehicle Speed Signal Malfunction (B2282)

DESCRIPTION The power management control ECU receives vehicle speed information using 2 methods. It receives a speed signal from the meter ECU. It also receives speed information from the meter E ...

Vehicle Speed Sensor Malfunction (B2283)

DESCRIPTION The skid control ECU converts wheel speed sensor signals into 4-pulse signals and sends them to the combination meter. After this signal is converted into a more precise rectangular w ...

Other materials about Toyota Venza:

Headlight Leveling ECU Power Source Circuit
DESCRIPTION This circuit detects the state of the ignition switch, and sends it to the headlight leveling ECU assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the followin ...

Diagnosis System
DIAGNOSIS SYSTEM 1. ECUS OR SENSORS WHICH COMMUNICATE THROUGH CAN COMMUNICATION SYSTEM (a) CAN No. 1 Bus (1) ECM (2) Main body ECU (Driver side junction block) (3) Combination meter (4) Power steering ECU (5) Air conditioning amplifier*3 (6) Center air ...

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE STEERING RACK BOOT CLIP (for LH Side) (a) Using pliers, remove the steering rack boot clip. 2. REMOVE STEERING RACK BOOT CLIP (for RH Side) HINT: Perform the same procedure as for the LH side. 3. REMOVE NO. 2 STEERING RAC ...