ELECTRIC STEERING LOCK > Unlock Position Sensor Signal Circuit

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DESCRIPTION

The unlock position sensor is one of the components comprising the steering lock actuator. The sensor switch contact closes when the steering lock is released. The steering lock release signal is then sent to the power source control ECU assembly. Receiving the signal, the ECU permits engine start. (This prevents the engine from being started with the steering locked.)

WIRING DIAGRAM


C106471E04


INSPECTION PROCEDURE

1.INSPECT STEERING LOCK ACTUATOR ASSEMBLY


    C106483E09

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

    Voltage:
    Tester connection
    (Symbols)
    		Condition
    		Specified condition
    L28-4 (SLP1) - L28-2 (SGND)
    1. Engine switch off
    2. Turn the engine switch on (ACC or IG)
    		Below 1 V



OK
CHECK PUSH BUTTON START FUNCTION
NG


2.CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - POWER SOURCE CONTROL ECU)


    C106491E09

  1. Disconnect the L28 connector from the steering lock actuator assembly.

  1. Disconnect the L73 connector from the power source control ECU assembly.

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

    Resistance:
    Tester connection
    (Symbols)
    		Condition
    		Specified condition
    L28-4 (SLP1) - L73-26 (SLP)
    		Always
    		Below 1 Ω
    L28-4 (SLP1) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE STEERING LOCK ACTUATOR ASSEMBLY