ACC Signal Circuit

LIGHTING (INT): LIGHTING SYSTEM: ACC Signal Circuit
- ACC Signal Circuit

DESCRIPTION

This circuit detects the engine switch state [on (ACC) or off] and sends it to the main body ECU.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1. READ VALUE USING TECHSTREAM (ENGINE SWITCH)

(a) Using the Techstream, read the Data List Interior Lighting System.

Main Body





OK:

The display is as specified in the normal condition column.

NG -- CHECK HARNESS AND CONNECTOR (BATTERY - MAIN BODY ECU)

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Interior Lighting System

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

(a) Remove the main body ECU Removal.





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

Standard Voltage:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Removal