Hazard Warning Switch Circuit: Procedure
- READ VALUE USING TECHSTREAM
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Combination Meter / Data List.
- Read the display on the Techstream.COMBINATION METER
Tester Display Measurement Item/Range Normal Condition Diagnostic Note Hazard Flasher Switch Hazard warning signal switch signal/ON or OFF ON: Hazard warning signal switch on
OFF: Hazard warning signal switch off- OK
Normal conditions listed above are displayed.
NG → See step 2
OK → See step 5
- INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY
- Remove the hazard warning signal switch assembly. Refer to REMOVAL .
- Inspect the hazard warning signal switch assembly. Refer to INSPECTION .
NG → See step 6
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH ASSEMBLY - COMBINATION METER ASSEMBLY AND BODY GROUND)
- Disconnect the D8 combination meter assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition D53-4 (F) - D8-5 (HAZ) Always Below 1 Ω D53-4 (F) - Body ground Always 10 kΩ or higher D53-1 (E) - Body ground Always Below 1 Ω
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 4
- REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE
- REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY. Refer to REMOVAL