Engine Switch Illumination Circuit [11/2016 - ]: 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 / Smart Key / Active Test.
5. Perform the Active Test according to the display on the Techstream.

   Body Electrical > Smart Key > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Power/Engine SW Light	Engine switch illumination	OFF or ON	When performing this Active Test, make sure the following condition is met: The engine switch illumination is off (15 seconds or more have elapsed since it turned from on to off) and the ignition switch is ON or ACC, or the engine is running.

   Body Electrical > Smart Key > Active Test 

   Tester Display
   Power/Engine SW Light

   OK

   Engine switch illumination comes on.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [12/2013 - ]  

Result:  2

NG 

See step  2

1. Remove the engine switch.

   Refer to REMOVAL [11/2016 - ]

2. Inspect the engine switch.

   Refer to INSPECTION [11/2016 - ]

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPLACE ENGINE SWITCH. Refer to  REMOVAL [11/2016 - ] 

Result:  1

OK 

See step  3

1. Disconnect the F13 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
   F49-9 (SWIL) - F13-17 (SWIL)	Always	Below 1 Ω
   F49-6 (AGND) - F13-12 (AGND)	Always	Below 1 Ω
   F49-9 (SWIL) or F13-17 (SWIL) - Body ground	Always	10 kΩ or higher
   F49-6 (AGND) or F13-12 (AGND) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [12/2013 - ] 

Result:  2

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR