Interior Light Circuit [08/2013 - ]: Procedure

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 that the lights operate.
   MAIN BODY
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Illuminated Entry System	Personal light*2 and rear interior light	ON/OFF	No. 1 room light assembly switch in DOOR position*1 Interior light door switch is on*2

   • *1: w/o Sliding Roof
   • *2: w/ Sliding Roof

   OK

   Each light fades in.

   RESULT
   
   

   Result	Proceed to
   OK	A
   NG (w/o Sliding Roof)	B
   NG (w/ Sliding Roof and w/o Smart Key System)
   NG (w/ Sliding Roof and w/ Smart Key System)	C

B → See step   2 

C → See step   4 

A → See step   8 

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

   HINT: 

   Perform the check under the following conditions:

   • No. 1 room light assembly switch in DOOR position*1
   • Interior light door switch on*2

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   3B-34 - Body ground*3	Ignition switch off	11 to 14 V
   3B-35 - Body ground	Ignition switch off	11 to 14 V

   • *1: w/o Sliding Roof
   • *2: w/ Sliding Roof
   • *3: w/o Smart Key System

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-34 - MB-1 (ILE)*1	Always	Below 1 Ω
   3B-35 - MB-1 (ILE)	Always	Below 1 Ω

   • *1: w/o Smart Key System

NG → See step   9 

OK → See step   7 

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   10 

OK: Go to next step 

1. Install the roof console box assembly. Refer to INSTALLATION [08/2013 - ] .
2. Disconnect the 3B instrument panel junction block assembly connector.
3. Measure the voltage according to the value(s) in the table below.

   HINT: 

   Perform the check under the following conditions:

   • Interior light door switch on

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   3B-35 - Body ground	Ignition switch off	11 to 14 V

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   9 

OK → See step   7