Inspection Procedure

HINT:

When the engine switch is off, the main body ECU may occasionally go into a non-active state called sleep mode. Therefore, before proceeding with the inspection, it is necessary to perform the following step to wake up the ECU:

With the engine switch off, open the driver door. Then (with the engine switch still off) open and close any door several times at 1.5 second intervals.

1. CHECK STEERING LOCK ACTUATOR (SLP1 VOLTAGE) 
   1. Measure the voltage according to the value(s) in the table below.

      Standard Voltage 

      VOLTAGE SPECIFICATION
      
      

      Tester Connection	Condition (Steering Lock Position)	Specified Condition
      L33-4 (SLP1) - L33-2 (SGND)	Locked	11 to 14 V
      L33-4 (SLP1) - L33-2 (SGND)	Unlocked	Below 1 V

      Fig 1: Identifying Steering Lock Actuator Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START  (See HOW TO PROCEED WITH TROUBLESHOOTING )

   NG: Go to next step 

2. CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR - MAIN BODY ECU) 
   Fig 2: Identifying L13 Main Body ECU And L33 Steering Lock Actuator Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Disconnect the L13 main body ECU connector.
   2. Disconnect the L33 steering lock actuator connector.
   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFICATION
      
      

      Tester Connection	Condition	Specified Condition
      L13-18 (SLP) - L33-4 (SLP1)	Always	Below 1 Ω
      L33-4 (SLP1) - Body ground	Always	10 kΩ or higher

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: REPLACE STEERING LOCK ACTUATOR