Lighting System (For Hatchback) Low Beam Headlight Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING TECHSTREAM

CHECK HEADLIGHT

INSPECT RUNNING LIGHT RELAY

CHECK HARNESS AND CONNECTOR (RUNNING LIGHT RELAY - HEADLIGHT DIMMER RELAY AND BODY GROUND)

CHECK HARNESS AND CONNECTOR (RUNNING LIGHT RELAY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

1. Connect the Techstream to the DLC3.
   

2. Turn the ignition switch to ON.
   

3. Turn the Techstream on.
   

4. Enter the following menus: Body Electrical / Main Body / Active Test.
   

5. According to the display on the Techstream, perform the Active Test.
   
   

   Main Body

   Tester Display	Test Part	Control Range	Diagnostic Note
   Headlight Relay	Running light relay	OFF or ON	-

   OK:

   Running light relay operates. (Low beam headlights illuminate.)
   

1. Check the operation of the high beam headlights.
   

   OK:

   High beam headlights operate normally.
   

1. Remove the running light relay from the No. 2 engine room relay block.
   

2. Connect the positive (+) lead from the battery to terminal 6 (+B).
   

3. Connect the negative (-) lead from the battery to terminal 4 (H) and 3 (E).
   

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

   Standard Voltage:

   Tester Connection	Condition	Specified Condition
   1 (HLOR) - Battery negative terminal	Always	11 to 14 V
   5 (HLOL) - Battery negative terminal	Always	11 to 14 V

   Text in Illustration

   *a	Component without harness connected (Running Light Relay)

1. Remove the running light relay from the No. 2 engine room relay block.
   

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

   Standard Voltage:

   Tester Connection	Condition	Specified Condition
   DRL-6 (+B) - Body ground	Always	11 to 14 V

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   DRL-3 (E) - Body ground	Always	Below 1 Ω

   Text in Illustration

   *1	No. 2 Engine Room Relay Block
   *2	Running Light Relay Terminal

1. Remove the running light relay from the No. 2 engine room relay block assembly.
   

2. Disconnect the 3C instrument panel junction block assembly connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   DRL-4 (H) - 3C-18	Always	Below 1 Ω
   DRL-4 (H) - Body ground	Always	10 kΩ or higher

1. Remove the instrument panel junction block assembly.
   

2. Remove the main body ECU from the instrument panel junction block assembly.
   

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

   
   
   
   
   

   Text in Illustration

   *a

   Component without harness connected (Instrument Panel Junction Block Assembly)

   -

   -

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   3C-18 - MB-15 (HRLY)	Always	Below 1 Ω