ACC Signal Circuit

LIGHTING: LIGHTING SYSTEM: ACC Signal Circuit
- ACC Signal Circuit

DESCRIPTION

The main body ECU receives the ACC signal to control the illuminated entry system.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM

(a) Connect Techstream to the DLC3.

(b) Turn the ignition switch on (IG).

(c) Turn Techstream on.

(d) Select the following menu items: Body Electrical / Main Body / Data List.

(e) Read the display on Techstream.

Main Body:





OK:

Normal conditions listed above are displayed.

NG -- INSPECT FUSE (ACC)

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures

2. INSPECT FUSE (ACC)

(a) Remove the ECU-ACC fuse from the instrument panel junction block.

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

Standard resistance:





NG -- REPLACE FUSE
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (ACC POWER SOURCE CIRCUIT)

(a) Measure the voltage between the loading slot of the fuse and body ground.





Standard voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)