Dtc B2285 Steering Lock Position Signal Circuit Malfunction

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Theft Deterrent Keyless Entry. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (STEERING UNLOCK SWITCH)

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

REPLACE MAIN BODY ECU

DTC B2285 Steering Lock Position Signal Circuit Malfunction

DTC B2288 Steering Lock Signal Circuit Malfunction


DESCRIPTION

The main body ECU and the steering lock ECU are connected by a cable and the LIN communication line. These DTCs are stored when: 1) signals, transmitted through the cable and the communication line, do not match; or 2) a malfunction is detected in the circuit between the main body ECU and the steering lock ECU.

DTC Code
Detection Condition
Trouble Area
B2285
The cable and LIN information between the main body ECU and steering lock ECU is inconsistent.
  1. Main body ECU
  1. Steering lock actuator assembly (steering lock ECU)
  1. Harness or connector
B2288
After turning the engine switch from off to on (IG), the steering wheel does not unlock for a certain period of time (the ECU unlocks the steering wheel only when it receives an unlock signal from LIN communication and the cable).
  1. Main body ECU
  1. Steering lock actuator assembly (steering lock ECU)
  1. Harness or connector

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function). Dtc B2285 Steering Lock Position Signal Circuit Malfunction


INSPECTION PROCEDURE

1.READ VALUE USING INTELLIGENT TESTER (STEERING UNLOCK SWITCH)

  1. Use the Data List to check if the steering lock is functioning properly.

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Steering Unlock Switch
    		Steering lock condition/ON or OFF
    		ON: Steering unlocked
    OFF: Steering locked
    		-
    Result
    Result
    		Proceed to
    Display on the intelligent tester does not change according to steering lock position
    		A
    Display on the intelligent tester changes according to steering lock position
    		B


B
REPLACE MAIN BODY ECU
A


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

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function). Dtc B2285 Steering Lock Position Signal Circuit Malfunction

  1. Disconnect the E1 main body ECU connector.

  1. Disconnect the E26 steering lock ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E1-18 (SLP) - E26-4 (SLP1)
    		Always
    		Below 1 Ω
    E1-18 (SLP) or E26-4 (SLP1) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.REPLACE MAIN BODY ECU

  1. Temporarily replace the main body ECU with a new or normally functioning one.

  1. Check whether DTC B2285 and B2288 are output.

    Result
    Result
    		Proceed to
    DTC not output
    		A
    DTC output (for Power tilt and telescopic)
    		B
    DTC output (for Manual tilt and telescopic)
    		C


B
REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) (Click here)

C
REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) (Click here)
A

END