Interior Light Circuit

LIGHTING: LIGHTING SYSTEM: Interior Light Circuit

Interior Light Circuit

DESCRIPTION

The interior light control of the illuminated entry system is controlled by the main body ECU. The operation and condition of this control are described below.





HINT: When any of the lights do not illuminate, perform the inspection according to the PROBLEM SYMPTOMS TABLE. When all of the lights (interior light, front seat illumination, rear seat illumination, and rear door courtesy lights) do not illuminate, perform the ACTIVE TEST of the illuminated entry system. If it is normal, there may be a malfunction in the door courtesy switch circuit, door lock position switch circuit, or engine switch circuit.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM
(a) Connect Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn Techstream on.
(d) Select the following menu items: Body Electrical / Main Body / Active Test.
(e) Check the operation.

Main Body:





OK:
Each light fades in.
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (BATTERY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)




(a) Disconnect the DR instrument panel J/B connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY