Unlock Position Sensor Signal Circuit: Procedure

1. Measure the voltage according to the value(s) in the table below.
   Fig 1: Identifying D14 Steering Lock Actuator Assembly Connector Terminals

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   Voltage

   Tester Connection (Symbols)	Condition	Specified Condition
   D14-4 (SLP1) - D14-2 (SGND)	Engine switch off Turn the engine switch on (ACC or IG)	Below 1 V

OK → CHECK PUSH BUTTON START SYSTEM 

NG: Go to next step 

1. Disconnect the D14 connector from the steering lock actuator assembly.
   Fig 2: Identifying D14 Steering Lock Actuator Assembly Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the D44 connector from the power source control ECU.
   Fig 3: Identifying D44 Power Source Control ECU Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the value(s) in the table below.

   Resistance

   Tester Connection (Symbols)	Condition	Specified Condition
   D14-4 (SLP1) - D44-26 (SLP)	Always	Below 1 Ω
   D14-4 (SLP1) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → REPLACE STEERING LOCK ACTUATOR ASSEMBLY