Inspection Procedure

1. Connect the intelligent tester (with CAN VIM) to the DLC3.
2. Turn the ignition switch ON.
3. Perform the ACTIVE TEST according to the display on the tester.

   Transponder key ECU: 

   TRANSPONDER KEY ECU ACTIVE TEST LIST
   
   

   Item	Tester Details	Diagnostic Note
   SECURITY INDIC	Turn security indicator ON/OFF	-

OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

NG: Go to Next Step. 

1. Disconnect the T10 ECU and S4 indicator connectors.
   Fig 1: Identifying T10 ECU And S4 Indicator Connectors

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

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   T10-8(IND)-S4-3(1) or S4-2(2)	Always	Below 1 Ω
   T10-8 (IND) - Body ground	Always	10 kΩ or higher
   (1) without TVIP System (2) with TVIP System

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK : Go to Next Step. 

Fig 2: Identifying Security Indicator Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Measure the resistance according to the value(s) in the table below. Standard resistance
   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   S4-1 - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK : Go to Next Step. 

1. Reconnect the T10 ECU and S4 indicator connectors.
   Fig 3: Identifying T10 Connectors

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

   Standard voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   T10-8 (IND) - Body ground	Security indicator light comes on	10 to 14 V
   T10-8 (IND) - Body ground	Security indicator light goes off	Below 1 V

NG: REPLACE TRANSPONDER KEY ECU ASSEMBLY 

OK : REPLACE SECURITY INDICATOR LIGHT ASSEMBLY