LIGHTING SYSTEM Engine Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the engine switch illumination.

WIRING DIAGRAM

*1	Engine Switch
*2	Certification ECU (Smart Key ECU Assembly)

PROCEDURE

1. INSPECT ENGINE SWITCH

   
   

   1. Remove the engine switch.

      
      

      • for 1UR-FE Click here.

      • for 1VD-FTV Click here.

      • for 1GR-FE Click here.

   2. Inspect the engine switch.

      
      

      • for 1UR-FE Click here.

      • for 1VD-FTV Click here.

      • for 1GR-FE Click here.

      Result

      Result	Proceed to
      OK	A
      NG (for 1UR-FE)	B
      NG (for 1VD-FTV)	C
      NG (for 1GR-FE)	D

   
   

   B

   REPLACE ENGINE SWITCH Click here

   C

   REPLACE ENGINE SWITCH Click here

   D

   REPLACE ENGINE SWITCH Click here

   A

2. CHECK HARNESS AND CONNECTOR (ENGINE SWITCH - MAIN BODY ECU AND BODY GROUND)

   
   

   1. Disconnect the E123 engine switch connector.

   2. Disconnect the E130 certification ECU (smart key ECU assembly) connector.

   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition E123-9 (SWIL) - E130-17 (SWIL) Always Below 1 Ω E123-6 (AGND) - E130-12 (AGND) Always Below 1 Ω E123-9 (SWIL) or - E130-17 (SWIL) - Body ground Always 10 kΩ or higher E123-6 (AGND) - E130-12 (AGND) - Body ground Always 10 kΩ or higher

   
   

   OK

   REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR