Interior Light Circuit [08/2013 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch to on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Active Test.
5. Check that the lights operate.
   MAIN BODY
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Illuminated Entry System	Front interior light and rear interior light	ON/OFF	Interior door switch is on

   OK

   Each light fades in.

NG → See step   2 

OK → See step   6 

1. Remove the roof console box assembly. Refer to REMOVAL [08/2013 - ] .
2. Inspect the roof console box assembly. Refer to INSPECTION [08/2013 - ] .

   OK

   Roof console box assembly is normal.

NG → See step   8 

OK: Go to next step 

1. Disconnect the 3B instrument panel junction block assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   T10-9 (DOOR) - 3B-35	Always	Below 1 Ω
   T10-9 (DOOR) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the instrument panel junction block assembly. Refer to REMOVAL [08/2013 - ] .
2. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *a

   Component without harness connected (Instrument Panel Junction Block Assembly)

   -

   -

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3B-35 - MB-1 (ILE)	Always	Below 1 Ω

NG → See step   7 

OK → See step   5