LIGHTING SYSTEM Hazard Warning Switch Circuit

DESCRIPTION

The combination meter receives a hazard warning signal switch information signal, and illuminates the turn signal lights.

PROCEDURE

1. Click here

   READ VALUE USING GTS (HAZARD FLASHER SWITCH)

   
   

   1. Operate the GTS according to the display and select the "Data List".

      Table 1. Combination Meter

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Hazard Flasher Switch	Hazard switch signal / ON or OFF	ON: Hazard switch on OFF: Hazard switch off	-

   
   
   • OK

     PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

   • NGClick here
2. Click here

   CHECK VEHICLE TYPE

   
   

   1. Check the vehicle type.

      Table 2. Result

      Result	Proceed to
      w/ Navigation System	A
      w/o Audio	B
      for radio Receiver Type	C

   
   
   • AClick here
   • BClick here
   • CClick here
3. Click here

   INSPECT MULTI-DISPLAY ASSEMBLY (HAZARD WARNING SIGNAL SWITCH)

   
   

   1. Remove the multi-display (Click here).

   2. Inspect the multi-display (Click here).

   
   
   • OKClick here
   • NG

     REPLACE MULTI-DISPLAY ASSEMBLY (Click here)

4. Click here

   CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - COMBINATION METER AND BODY GROUND)

   
   

   1. Disconnect the F79 and F97 multi-display connectors.

   2. Disconnect the E120 combination meter connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition E120-11 (HZSW) - F97-12 (HAZ) Always Below 1 Ω F79-13 (GND1) - Body ground E120-11 (HZSW) or F97-12 (HAZ) - Body ground Always 10 kΩ or higher

   
   
   • OK

     REPLACE COMBINATION METER ASSEMBLY (Click here)

   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

5. Click here

   INSPECT HAZARD WARNING SIGNAL SWITCH

   
   

   1. Remove the hazard warning signal switch (Click here).

   2. Inspect the hazard warning signal switch (Click here).

   
   
   • OKClick here
   • NG

     REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY (Click here)

6. Click here

   CHECK HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH - COMBINATION METER AND BODY GROUND)

   
   

   1. Disconnect the F130 hazard warning signal connector.

   2. Disconnect the E120 combination meter connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition E120-11 (HZSW) - F130-4 (F) Always Below 1 Ω F130-1 (E) - Body ground E120-11 (HZSW) or F130-4 (F) - Body ground Always 10 kΩ or higher

   
   
   • OK

     REPLACE COMBINATION METER ASSEMBLY (Click here)

   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

7. Click here

   INSPECT CLOCK ASSEMBLY

   
   

   1. Remove the clock (Click here).

   2. Inspect the clock (Click here).

   
   
   • OKClick here
   • NG

     REPLACE CLOCK ASSEMBLY (Click here)

8. Click here

   CHECK HARNESS AND CONNECTOR (CLOCK - COMBINATION METER AND BODY GROUND)

   
   

   1. Disconnect the g2 clock signal connector.

   2. Disconnect the E120 combination meter connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition E120-11 (HZSW) - g2-5 (F) Always Below 1 Ω g2-8 (E) - Body ground E120-11 (HZSW) or g2-5 (F) - Body ground Always 10 kΩ or higher

   
   
   • OK

     REPLACE COMBINATION METER ASSEMBLY (Click here)

   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR