Unlock Position Sensor Signal Circuit

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. Receiving the signal, the ECU permits engine start. (This prevents the engine from being started with the steering locked.)

WIRING DIAGRAM

INSPECTION PROCEDURE

1. INSPECT STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)

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

   Standard voltage:

   Tester connection (Symbols)	Condition	Specified condition
   J29-4 (SLP1) - J29-2 (SGND)	Engine switch off 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)

1. Disconnect the J29 connector from the steering lock actuator assembly.

2. Disconnect the J55 connector from the power source control ECU.

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

   Standard resistance:

   Tester connection (Symbols)	Condition	Specified condition
   J29-4 (SLP1) - J55-26 (SLP)	Always	Below 1 Ω
   J29-4 (SLP1) - Body ground	Always	10 kΩ or higher

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
REPLACE STEERING LOCK ACTUATOR ASSEMBLY