Dtc B2285 Steering Lock Position Signal Circuit Malfunction

Engine. Camry. Acv40 Gsv40
2Gr-Fe Starting. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER

CHECK FOR DTCS

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - STEERING LOCK ECU)

CHECK MAIN BODY ECU OPERATION

DTC B2285 Steering Lock Position Signal Circuit Malfunction


DESCRIPTION

This DTC is output when serial communication signals and LIN communication signals in the circuit between the main body ECU and steering lock actuator (steering lock ECU) are inconsistent.
HINT:
When the main body ECU is replaced with a new one and the negative (-) battery terminal is connected, the power source mode becomes the IG-ON mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.
After the main body ECU or steering lock ECU is replaced, perform the registration procedures for the engine immobiliser system.

DTC No.
DTC Detection Condition
Trouble Area
B2285
Cable and LIN information between the main body ECU and the steering lock ECU are inconsistent
  1. Main body ECU
  2. Steering lock ECU
  3. Wire harness or connector

WIRING DIAGRAM


Camry. Acv40 Gsv40.2Gr-Fe Starting.Starting System. Dtc B2285 Steering Lock Position Signal Circuit Malfunction


INSPECTION PROCEDURE

1.READ VALUE USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter the following menus: Body / Body / Data List.

  1. Read the Data List according to the display on the intelligent tester.

    HINT:
    When using the intelligent tester with the engine switch off, turn on and off any of the door courtesy light switches repeatedly at 1.5 second intervals or less until communication between the tester and vehicle starts.

    Body:
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Str Unlock SW
    		Steering lock condition / ON or OFF
    		ON: Steering is unlocked (Engine switch on (ACC))
    OFF: Steering is locked (Engine switch off)
    		-
    OK:
    ON (steering is unlocked) and OFF (steering is locked) appear on the screen.


NG
Go to step 3
OK


2.CHECK FOR DTCS

  1. Clear the DTCs (CAMRY_ACV40 RM000000YEH05QX.html).

  1. Check for DTC B2285, DTC B2287 and DTC B2786.

    Result:
    Display (DTC output)
    		Proceed to
    "DTC B2285" only
    		A
    "DTC B2287" and/or "DTC B2786"
    		B
    No DTC
    		C
    HINT:
    1. If DTC B2287 is output (CAMRY_ACV40 RM000000XEY04PX.html).
    2. If DTC B2786 is output (CAMRY_ACV40 RM000002XHX00YX.html).


B
GO TO DTC CHART

C
USE SIMULATION METHOD TO CHECK (CAMRY_ACV40 RM000000UZ104DX.html)
A

REPLACE MAIN BODY ECU

3.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - STEERING LOCK ECU)


  1. Disconnect the E7 and E51 ECU connectors.


    Camry. Acv40 Gsv40.2Gr-Fe Starting.Starting System. Dtc B2285 Steering Lock Position Signal Circuit Malfunction

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E7-18 (SLP) - E69-4 (SLP1)
    		Always
    		Below 1 Ω
    IR-9 (LIN1) - E69-5 (LIN)
    		Always
    		Below 1 Ω
    E7-18 (SLP) or E69-4 (SLP1) - Body ground
    		Always
    		10 kΩ or higher
    IR-9 (LIN1) or E69-5 (LIN) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK MAIN BODY ECU OPERATION

  1. After replacing the main body ECU with a normally functioning ECU, check that the engine starts (CAMRY_ACV40 RM000000YL103IX.html).

    OK:
    Engine can start normally.


NG
REPLACE STEERING LOCK ECU
OK

END (MAIN BODY ECU WAS DEFECTIVE)