LIGHTING SYSTEM Footwell Light Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the footwell lights.

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   PERFORM ACTIVE TEST USING GTS

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the power switch on (IG).

   3. Turn the GTS on.

   4. Enter the following menus: Body Electrical / Main Body / Active Test.

   5. Check that the footwell lights come on.

      Table 1. Main Body

      Tester Display	Test Part	Control Range	Diagnostic Note
      Fr Foot Light	Footwell lights	ON/OFF	Power switch is turned off just before performing the Active Test.

      OK
      Footwell lights come on.

   
   
   • OK

     PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

   • NGClick here
2. Click here

   CHECK HARNESS AND CONNECTOR (DOME FUSE - NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY)

   
   

   1. Disconnect the H47 No. 1 interior illumination light assembly LH connector.

   2. Disconnect the H48 No. 1 interior illumination light assembly RH connector.

   3. Disconnect the X14 No. 1 interior illumination light assembly LH connector.*1

   4. Disconnect the W13 No. 1 interior illumination light assembly RH connector.*1

   5. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition H47-2 (B) - Body ground Power switch off 11 to 14 V H48-2 (B) - Body ground Power switch off 11 to 14 V X14-2 (B) - Body ground*1 Power switch off 11 to 14 V W13-2 (B) - Body ground*1 Power switch off 11 to 14 V

      
      

      • *1: w/ Rear Footwell Light

   
   
   • OKClick here
   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

3. Click here

   CHECK HARNESS AND CONNECTOR (NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

   
   

   1. Disconnect the H9 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition H47-1 (E) - H9-20 (FSPT) Always Below 1 Ω H48-1 (E) - H9-20 (FSPT) Always Below 1 Ω X14-1 (E) - H9-20 (FSPT) Always Below 1 Ω W13-1 (E) - H9-20 (FSPT) Always Below 1 Ω H47-1 (E) - Body ground Always 10 kΩ or higher

   
   
   • OK

     REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)

   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR