Inspection Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Body / Active Test.
5. Check the operation.

   Body (Main Body ECU RH) 

   DIAGNOSTIC NOTE
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Step Light Operation	Footwell lights	ON / OFF	-

   OK: 

   Footwell lights come on. 

   HINT:

   The footwell lights RH and LH share the same power source. If either of the lights does not come on, there may be a problem in the part of the circuit that relates to that light. Therefore, inspect that part of the circuit.

NG: Go to step 2 

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

1. Disconnect the J75 main body ECU RH connector.
2. Measure the voltage according to the value (s) in the table.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   J75-15 (FSPT) - Body ground	Always	10 to 14 V

Fig 1: Identifying J75 Main Body ECU RH Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU RH (COWL SIDE J/B RH)