Front Fog Light Circuit

DESCRIPTION

The front controller receives fog light switch information from the combination switch, and turns on the fog light.

WIRING DIAGRAM

INSPECTION PROCEDURE

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER

1. Connect the intelligent tester to the DLC3.

2. Turn the engine switch on (IG).

3. Turn the intelligent tester main switch on.

4. Select the item below in the ACTIVE TEST and then check the front fog light operation.

ACTIVE TEST: Body No .5 (Front Controller) 

Item	Test Details	Diagnostic Note
Front Fog Light Relay	Front fog light relay ON / OFF	-

OK:

Fog light illuminates.

NG	Go to step 2

OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

2. INSPECT FUSE (FR FOG)

1. Remove the FR FOG fuse from the engine room No. 2 relay block.

2. Measure the resistance of the fuses.

   Standard resistance:

   Below 1 Ω
   

NG	REPLACE FUSE

OK

3. CHECK HARNESS AND CONNECTOR (ENGINE ROOM NO. 2 RELAY BLOCK - BATTERY)

1. Disconnect the 2E relay block connector.

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

   Standard voltage:

   Tester Connection	Condition	Specified Condition
   2E-1 - Body ground	Always	10 to 14 V

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4. CHECK HARNESS AND CONNECTOR (ENGINE ROOM NO. 2 R/B - FOG LIGHT)

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

   1. Disconnect the 2G relay block connector.

   2. Disconnect the B13 fog light connector.

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

      Standard resistance:

      Tester Connection	Condition	Specified Condition
      2G-7 - B13-2	Always	Below 1 Ω
      2G-7 or B13-2 - Body ground	Always	10 kΩ or higher
      B13-1 - Body ground	Always	Below 1 Ω

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

   1. Disconnect the 2G relay block connector.

   2. Disconnect the B1 fog light connector.

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

      Standard resistance:

      Tester Connection	Condition	Specified Condition
      2G-6 - B1-2	Always	Below 1 Ω
      2G-6 or B1-2 - Body ground	Always	10 kΩ or higher
      B1-1 - Body ground	Always	Below 1 Ω

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
REPLACE ENGINE ROOM NO. 2 R/B (FRONT CONTROLLER)