Engine Switch Illumination Circuit

LIGHTING (INT): LIGHTING SYSTEM: Engine Switch Illumination Circuit
- Engine Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the engine switch illumination.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

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

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Power Source Control / Active Test.

(e) Check that the the illumination operates.

Power Source Control





OK:

Engine switch illumination comes on.

NG -- INSPECT ENGINE SWITCH

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

2. INSPECT ENGINE SWITCH

(a) Remove the engine switch.





(b) Connect a positive (+) lead from the battery to terminal 11 and a negative (-) lead to terminal 5.

(c) Check that the illumination comes on.

OK:

Engine switch illumination comes on.

Text in Illustration





Result:





C -- REPLACE ENGINE SWITCH (for 4GR-FSE) Components

B -- REPLACE ENGINE SWITCH (for 2GR-FSE) Components
A -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (ENGINE SWITCH - ECU AND BODY GROUND)

(a) Disconnect the J55 power source control ECU connector.





(b) Disconnect the J31 engine switch connector.

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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER SOURCE CONTROL ECU Components