Inspection Procedure

1. Remove the starter relay.
2. Measure the resistance according to the value(s) in RELAY (ST RELAY)  .

   Standard resistance 

   RELAY (ST RELAY)
   
   

   Tester Connection	Specified Condition
   3 - 5	10 kΩ or higher
   3 - 5	Below 1 Ω (when battery voltage is applied to terminals 1 and 2)

   Fig 1: Inspecting Relay (ST Relay)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE RELAY 

OK: GO TO NEXT STEP 

1. Disconnect the T3 TVIP ECU connector.
2. Turn the ignition switch START.
3. Measure the voltage according to the value(s) in TVIP ECU - BODY GROUND  .

   Standard voltage 

   TVIP ECU - BODY GROUND
   
   

   Tester Connection	Specified Condition
   SRLY (T3-21) - Body ground	10 to 14 V

   Fig 2: Checking Harness And Connector (TVIP ECU - Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE TVIP ECU