Steering Lock System Unlock Position Sensor Signal Circuit

Steering. Land Cruiser. Urj200, 202 Grj200 Vdj200
Steering Column. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT STEERING LOCK ECU

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

STEERING LOCK SYSTEM - Unlock Position Sensor Signal Circuit


DESCRIPTION

The steering lock ECU sends an unlock position signal to the main body ECU. On receiving the signal, the main body ECU permits an engine start. This prevents the engine from being started with the steering locked.
The diagnosis information of the steering lock ECU is transmitted to the intelligent tester via the certification ECU (smart key ECU assembly) as the steering lock ECU is not connected to the CAN communication system.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Steering Column.Power Tilt And Power Telescopic Steering Column System.Steering Lock System Unlock Position Sensor Signal Circuit


INSPECTION PROCEDURE

HINT:
When the engine switch is off, the main body ECU may occasionally go into a non-active state called sleep mode. Therefore, before proceeding with the inspection, it is necessary to perform the following steps to wake up the ECU:
With the engine switch off, open the driver door. Then (with the engine switch still off) open and close any door several times at 1.5 second intervals.
1.INSPECT STEERING LOCK ECU
Land Cruiser. Urj200, 202 Grj200 Vdj200.Steering Column.Power Tilt And Power Telescopic Steering Column System.Steering Lock System Unlock Position Sensor Signal Circuit

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

    Standard Voltage:
    Tester Connection
    		Condition (Steering Lock Position)
    		Specified Condition
    E26-4 (SLP1) - E26-2 (SGND)
    		Locked
    		11 to 14 V
    E26-4 (SLP1) - E26-2 (SGND)
    		Unlocked
    		Below 1 V


NG
Go to step 2
OK

GO TO ENTRY AND START SYSTEM (FOR START FUNCTION) (HOW TO PROCEED WITH TROUBLESHOOTING) (Click here)

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

Land Cruiser. Urj200, 202 Grj200 Vdj200.Steering Column.Power Tilt And Power Telescopic Steering Column System.Steering Lock System Unlock Position Sensor Signal Circuit

  1. Disconnect the E26 steering lock ECU connector.

  1. Disconnect the E1 main body ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E26-4 (SLP1) - E1-18 (SLP)
    		Always
    		Below 1 Ω
    E26-4 (SLP1) or E1-18 (SLP) - Body ground
    		Always
    		10 kΩ or higher
    Result
    Result
    		Proceed to
    Within specified range (for Power tilt and telescopic)
    		A
    Within specified range (for Manual tilt and telescopic)
    		B
    Outside specified range
    		C


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

C
REPAIR OR REPLACE HARNESS OR CONNECTOR
A

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