Inspection Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Body No. 5 / Active Test.
5. Check the operation.

   Body No. 5 (Front Controller) 

   DIAGNOSTIC NOTE
   
   

   Tester Display	Test Part	Control Range	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  

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

   Standard resistance: 

   Below 1 Ω 

NG: REPLACE FUSE 

OK: Go to Next Step 

1. Disconnect the 2E relay block connector.
2. Measure the voltage according to the value (s) in the table below.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

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

Fig 1: Identifying 2E Relay Block Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step 

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 SPECIFIED CONDITION CHART
      
      

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

      Fig 2: Identifying Harness And Connector (Engine Room No. 2 R/B - Fog Light)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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 SPECIFIED CONDITION CHART
      
      

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

   Fig 3: Identifying 2G Relay Block Connector And B1 Fog Light Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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