LIGHTING SYSTEM Footwell Light Circuit

DESCRIPTION

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

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the power switch on (IG).

   3. Turn the intelligent tester on.

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

   5. Check that the foot lights come on.

      Main Body

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

      OK
      Footwell lights come on.

   
   

   NG

   CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY) Click here

   OK

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

2. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY)

   
   
   1. 

      Text in Illustration

      *1	Front view of wire harness connector (to Instrument Panel Junction Block Assembly)

      Disconnect the 2B instrument panel junction block assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition 2B-17 - Body ground Always 11 to 14 V 2B-18 - Body ground Always 11 to 14 V

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

   
   
   1. 

      Text in Illustration

      *1	Component without harness connected (Instrument Panel Junction Block Assembly)

      Remove the instrument panel junction block assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition 2B-17 - A-26 (FSPT) Always Below 1 Ω 2B-18 - A-26 (FSPT) Always Below 1 Ω A-26 - Body ground Always 10 kΩ or higher

   
   

   NG

   REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

   OK

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