Inspection Procedure

1. PERFORM ACTIVE TEST USING TECHSTREAM 
   1. Connect the Techstream to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the Techstream on.
   4. Enter the following menus: Body Electrical / Main Body / Active Test.
   5. Check the operation.

   Main Body (Main Body ECU) 

   ACTIVE TEST REFERENCE
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Illuminated Entry System	Personal light*1, center room light and rear room light	ON/OFF	Personal switch OFF, interior light switch in DOOR position, and all doors are closed
   HINT: *1: w/ Sliding Roof

   OK: Each light fades in  .

   NG: Go to Next Step 

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

2. INSPECT FUSE (DOME) 
   1. Remove the DOME fuse from the engine room relay block.
   2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   RESISTANCE SPECIFIED CONDITION CHART
   
   

   Tester Display	Condition	Specified Condition
   DOME fuse	Always	Below 1 Ω

   NG: REPLACE FUSE 

   OK: Go to Next Step 

3. CHECK HARNESS AND CONNECTOR (BATTERY - INSTRUMENT PANEL JUNCTION BLOCK) 

1. Disconnect the 2K instrument panel junction block assembly connector.
2. Measure the voltage according to the value(s) in the table below.

Standard Voltage 

Fig 1: Identifying 2K Instrument Panel Junction Block Assembly Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)