Inspection Procedure

1. Use the Data List to check if the power switch is functioning properly
   1. Intelligent tester.

      MAIN BODY 

      DATA LIST - MAIN BODY
      
      

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      STSW 1	Start Switch 1/ON or OFF	ON: Power switch ON (IG) OFF: Power switch OFF	-
      ST SW2	Start Switch 2/ON or OFF	ON: Power switch ON (IG) OFF: Power switch OFF	-

   2. Techstream

      Main Body 

      DATA LIST - MAIN BODY
      
      

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Start Switch 1	Start Switch 1/ON or OFF	ON: Power switch ON (IG) OFF: Power switch OFF	-
      Start Switch 2	Start Switch 2/ON or OFF	ON: Power switch ON (IG) OFF: Power switch OFF	-

      OK: When the power switch is turned ON (IG), ON is displayed on the tester. 

NG:  Go to step  3

OK: Go to next Step 

1. Ensure the key is inside the cabin.
2. With the brake pedal released, check that the power source mode changes as shown below each time the power switch is pushed.

   OK: OFF → ON (ACC) → ON (IG) → OFF 

NG: Go to SMART ACCESS SYSTEM WITH PUSH-BUTTON START  , (See POWER SOURCE MODE DOES NOT CHANGE )

OK: USE SIMULATION METHOD TO CHECK  (See HOW TO PROCEED WITH TROUBLESHOOTING )

1. Disconnect the L36 power switch connector
2. Measure the resistance according to the value (s) in the table below.

   Standard resistance 

   STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   7 (SS1) - 5 (GND)	Pushed	Below 1 Ω
   2 (SS2) - 5 (GND)	Pushed	Below 1 Ω
   7 (SS1) - 5 (GND)	Not pushed	10 kΩ or higher
   2 (SS2) - 5 (GND)	Not pushed	10 kΩ or higher

NG: REPLACE POWER SWITCH  (See REMOVAL  )

Fig 1: Identifying Power Switch Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next Step 

Fig 2: Identifying L13 Main Body ECU And L36 Power Switch Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the L13 main body ECU connector
2. Disconnect the L36 power switch connector
3. Measure the resistance according to the value (s) in the table below.

   Standard resistance 

   STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   L13-17 (SSW1) - L36-7 (SS1)	Always	Below 1 Ω
   L13-16 (SSW2) - L36-2 (SS2)	Always	Below 1 Ω
   L36-5 (GND) - Body ground	Always	Below 1 Ω
   L13-17 (SSW1) or L36-7 (SS1) - Body ground	Always	10 kΩ or higher
   L13-16 (SSW2) or L36-2 (SS2) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU