LIGHTING SYSTEM Hazard Warning Switch Circuit
| DTC Code | DTC Name |
|---|---|
| Hazard Warning Switch Circuit |
DESCRIPTION
The combination meter assembly receives the hazard warning signal switch assembly ON signal and controls the operation of the hazard warning lights.
WIRING DIAGRAM
except Sedan
for Sedan
PROCEDURE
READ VALUE USING GTS
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Combination Meter / Data List.
Perform the Active Test according to the display on the GTS.
Body Electrical > Combination Meter > Data List
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
-
Body Electrical > Combination Meter > Data List
Tester Display
Hazard Flasher Switch
OK
Normal conditions listed above are displayed.
Result
Proceed to
OK
NG
INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY
Remove the hazard warning signal switch assembly.
-
*a
Component without harness connected
(Hazard Warning Signal Switch Assembly)
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
4 - 1
Hazard warning signal switch on
Below 1 Ω
Hazard warning signal switch off
10 kΩ or higher
Result
Proceed to
OK
NG
CHECK HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH ASSEMBLY - COMBINATION METER ASSEMBLY AND BODY GROUND)
Disconnect the E45 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Table 1. except Sedan Tester Connection
Condition
Specified Condition
E121-4 - E45-3 (HAZ)
Always
Below 1 Ω
E121-4 - Body ground
Always
10 kΩ or higher
E121-1 - Body ground
Always
Below 1 Ω
Table 2. for Sedan Tester Connection
Condition
Specified Condition
E41-4 - E45-3 (HAZ)
Always
Below 1 Ω
E41-4 - Body ground
Always
10 kΩ or higher
E41-1 - Body ground
Always
Below 1 Ω
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR