Hazard Warning Switch Circuit [08/2017 - ]: Procedure

1. Using the Techstream, read the Data List.

   Refer to DATA LIST / ACTIVE TEST [08/2017 - 08/2019] , or refer to DATA LIST / ACTIVE TEST [08/2019 - ]

   COMBINATION METER
   
   

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

   OK

   Normal condition listed above is displayed.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [08/2017 - 08/2019]  , or refer to  PROBLEM SYMPTOMS TABLE [08/2019 - ] 

Result: 

NG 

See step  2

1. Remove the hazard warning signal switch assembly.

   Refer to REMOVAL [08/2017 - ]

2. Inspect the hazard warning signal switch assembly.

   Refer to INSPECTION [08/2015 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY. Refer to  REMOVAL [08/2017 - ] 

Result: 

OK 

See step  3

1. Disconnect the H136 hazard warning signal switch assembly connector.
2. Disconnect the H139 combination meter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H139-20 (HAZ) - H136-4 (B1)	Always	Below 1 Ω
   H139-1 (E) - Body ground	Always	Below 1 Ω
   H139-20 (HAZ) or H136-4 (B1) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [08/2017 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR