Engine Switch Illumination Circuit [08/2015 - ]: 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. Perform the Active Test according to the display on the Techstream.
   MAIN BODY
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Illuminated Entry System	Engine switch illumination	ON/OFF	-

   OK

   Engine switch illumination comes on.

NG → See step   2 

OK → See step   5 

1. Remove the engine switch. Refer to REMOVAL [08/2015 - ] for 2AR-FE. Refer to REMOVAL [08/2015 - ] for 2GR-FE).
2. Inspect the engine switch. Refer to INSPECTION [08/2015 - ] for 2AR-FE. Refer to INSPECTION [08/2015 - ] for 2GR-FE).

   OK

   Engine switch illumination comes on.

   RESULT
   
   

   Result	Proceed to
   OK	A
   NG (for 2AR-FE)	B
   NG (for 2GR-FE)	C

B → See step   4 

C → See step   7 

A: Go to next step 

1. Disconnect the I78 certification ECU (smart key ECU assembly) connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I58-9 (SWIL) - I78-16 (SWIL)	Always	Below 1 Ω
   I58-6 (AGND) - I78-24 (AGND)	Always	Below 1 Ω
   I58-9 (SWIL) - Body ground	Always	10 kΩ or higher
   I58-6 (AGND) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   6