Hazard Warning Switch Circuit [10/2018 - ]: 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 / Combination Meter / Data List.
5. Read the Data List according to the display on the Techstream.

   Body Electrical > Combination Meter > Data List 

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

   Body Electrical > Combination Meter > Data List 

   Tester Display
   Hazard Flasher Switch

   OK

   Normal conditions listed above are displayed.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2018 - 09/2020]  , or refer to  PROBLEM SYMPTOMS TABLE [09/2020 - ] 

Result: 

NG 

See step  2

1. Remove the hazard warning signal switch (air conditioning control assembly).

   Refer to REMOVAL [09/2014 - ]

2. Inspect the hazard warning signal switch (air conditioning control assembly).

   Refer to INSPECTION [09/2014 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE AIR CONDITIONING CONTROL ASSEMBLY. Refer to  REMOVAL [09/2014 - ] 

Result: 

OK 

See step  3

1. Disconnect the O4 combination meter assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O64-9 (HAZ) - O4-2 (HZSW)	Always	Below 1 Ω
   O64-9 (HAZ) or O4-2 (HZSW) - Body ground	Always	10 kΩ or higher
   O64-14 (GND) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [09/2014 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR