Front Fog Light Circuit

LIGHTING: LIGHTING SYSTEM: Front Fog Light Circuit
- Front Fog Light Circuit

DESCRIPTION

The engine room No. 2 relay block receives fog light switch information from the combination switch, and turns on the fog light.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM

(a) Select the item below in the ACTIVE TEST, use the Techstream to generate a control command, and then check that the fog light illuminates.

Body No. 5 (Front Controller)





OK:

Fog light illuminates.

NG -- INSPECT FUSE (FR FOG, FR CTRL-AM)

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

2. INSPECT FUSE (FR FOG, FR CTRL-AM)

(a) Remove the FR CTRL-AM fuse from the engine room No. 2 relay block.

(b) Remove the FR FOG fuse from the engine room No. 2 junction block.

(c) Measure the resistance of the fuses.

Standard resistance:

Below 1 Ohms

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

3. REPLACE FOG LIGHT BULB (FRONT RH OR FRONT LH)

(a) Temporarily replace the fog light bulb with a new or normally functioning one.

(b) Check that the bulb illuminates.

OK:

Fog light bulb illuminates.

OK -- END
NG -- Continue to next step.

4. CHECK WIRE HARNESS (ENGINE ROOM NO. 2 JUNCTION BLOCK - BATTERY)

(a) Disconnect the 2E junction block connector.





(b) Measure the resistance of the wire harness side connector.

Standard voltage:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

5. CHECK WIRE HARNESS (ENGINE ROOM NO. 2 JUNCTION BLOCK - FOG LIGHT (FRONT LH OR FRONT RH) - BODY GROUND)

(a) Check the wire harness between the fog light (front LH) and engine room No. 2 junction block, and the fog light (front LH) and body ground.





(1) Disconnect the 2G junction block connector.

(2) Disconnect the B12 fog light connector.

(3) Measure the resistance of the wire harness side connectors.

Standard resistance:





(b) Check the wire harness between the fog light (front RH) and engine room No. 2 junction block, and the fog light (front RH) and body ground.





(1) Disconnect the 2G junction block connector.

(2) Disconnect the B1 fog light connector.

(3) Measure the resistance of the wire harness side connectors.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE