Lighting System Front Fog Light Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING INTELLIGENT TESTER

INSPECT FUSE (FR FOG)

INSPECT FOG LIGHT RELAY

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

CHECK HARNESS AND CONNECTOR (BETWEEN CONNECTOR IL-3 AND CONNECTOR IL-4)

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

CHECK HARNESS AND CONNECTOR (BODY ECU - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
   

3. Turn the light control switch to the TAIL position.
   

4. Select the item below in the ACTIVE TEST and then check that the relay operates.
   
   

   Main Body (Main Body ECU):

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

   OK:

   Front fog light relay operates. (Front fog lights come on.)
   

1. Remove the FR FOG fuse from the instrument panel J/B assembly.
   

2. Measure the resistance of the fuse.
   

   Standard resistance:

   Below 1 Ω
   

1. Remove the front fog light relay from the instrument panel J/B assembly.
   

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

   Standard resistance:

   Tester Connection	Specified Condition
   3 - 5	10 kΩ or higher
   	Below 1 Ω (When battery voltage is applied to terminals 1 and 2)

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

   Standard voltage:

   Tester Connection	Condition	Specified Condition
   IC-1 - Body ground	Light control switch in TAIL and front fog light switch OFF → ON	Below 1 V → 10 to 14 V
   ID-5 - Body ground	Light control switch in TAIL and front fog light switch OFF → ON	Below 1 V → 10 to 14 V

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

   Standard voltage:

   Tester Connection	Condition	Specified Condition
   IL-3 - Body ground	Light control switch OFF → TAIL	Below 1 V → 10 to 14 V

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

   Standard voltage:

   Tester Connection	Condition	Specified Condition
   IL-4 - Body ground	Light control switch OFF → TAIL	Below 1 V → 10 to 14 V

1. Disconnect the II instrument panel J/B assembly connector.
   

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

   Standard voltage:

   Tester Connection	Condition	Specified Condition
   II-8 - Body ground	Light control switch OFF → TAIL	Below 1 V → 10 to 14 V

1. Disconnect the E7 main body ECU connector.
   

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

   Standard resistance:

   Tester Connection	Condition	Specified Condition
   E7-4 - II-8	Always	Below 1 Ω