Inspection Procedure

HINT:

After replacing the steering lock ECU (steering lock actuator assembly), confirm the Initialization of the steering lock (See INITIALIZATION ).

1. INSPECT STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) 
   1. Measure the voltage according to the value(s) in the table below.

   Standard Voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   D17-4 (SLP1) - D17-1 (GND)	Turn the engine switch off Turn the engine switch on (ACC or IG)	Below 1 V

   Text in Illustration 

   ILLUSTRATION REFERENCE
   
   

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

   Fig 1: Identifying Steering Lock ECU (Steering Lock Actuator Assembly) Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: Go to step 2 

   OK: REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)  (See DISASSEMBLY )

2. CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU - POWER MANAGEMENT CONTROL ECU) 
   1. Disconnect the D17 connector from the steering lock ECU (steering lock actuator assembly).
   2. Disconnect the D43 connector from the power management control ECU.
   3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   D17-4 (SLP1) - D43-3 (SLP)	Always	Below 1 Ω
   D17-4 (SLP1) - Body ground	Always	10 kΩ or higher

   Text in Illustration 

   ILLUSTRATION REFERENCE
   
   

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

   Fig 2: Identifying Steering Lock ECU And Power Management Control ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: CHECK SMART KEY SYSTEM (for Start Function)  (See TERMINALS OF ECU )