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 and room light (Personal switch OFF, Interior light switch is in DOOR position and all doors are closed)	ON/OFF	-
   HINT: *1: w/Sliding Roof

   OK: 

   Each light fades in. 

   NG: Go to step 2 

   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 

   TERMINALS RESISTANCE REFERENCE
   
   

   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 

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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