Unlock Position Sensor Signal Circuit: Procedure

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   STANDARD VOLTAGE
   
   

   Tester Connection	Condition	Specified Condition
   J29-4 (SLP1) - J29-2 (SGND)	Turn the engine switch off Turn the engine switch on (ACC or IG)	Below 1 V

   TEXT IN ILLUSTRATION
   
   

   *1	Component with harness connected (Steering Lock Actuator Assembly)

NG → See step   2 

OK → REPLACE STEERING LOCK ACTUATOR ASSEMBLY 

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Steering Lock Actuator Assembly)
   *2	Front view of wire harness connector (to Power Source Control ECU)

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	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 → See step   3