RM38T0EC _59 Vehicle Exterior _112294 LIGHTING (EXT) _0510962 LIGHTING SYSTEM J

LIGHTING (EXT)  LIGHTING SYSTEM  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

E519134E01
1.615,1.76 4.188,2.01 2.573,0.25 10 false Hazard Warning Signal Switch Assembly 1.615,1.594 2,1.802 0.385,0.208 10 false I38 1.927,1.094 2.219,1.333 0.292,0.24 10 false 3 2.115,1.094 2.406,1.333 0.292,0.24 10 false E 3.427,1.094 3.719,1.333 0.292,0.24 10 false TB 3.698,1.094 3.99,1.333 0.292,0.24 10 false 6 5.229,1.938 5.521,2.177 0.292,0.24 10 false I4 5.219,2.073 7.115,2.354 1.896,0.281 10 false Combination Meter Assembly 5.531,1.031 5.969,1.25 0.438,0.219 10 false HZSW 5.281,1.083 5.573,1.323 0.292,0.24 10 false 12 6.302,0.573 6.74,0.792 0.438,0.219 10 false +B

CAUTION / NOTICE / HINT

NOTICE:
·

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

·

When replacing the combination meter assembly, update the ECU security key.

Click hereGeneral>SETUP>WHEN REPLACING OR REMOVING/INSTALLING PARTS>UPDATE ECU SECURITY KEY



PROCEDURE

1.READ VALUE USING GTS
a.

Read the Data List 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 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
50003 409 39
OK:

Normal conditions listed above are displayed.



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>PROBLEM SYMPTOMS TABLE


NG

2.INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY
2.INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>HAZARD WARNING SWITCH>INSPECTION

Result:
Proceed to
OK
NG



OK

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

NG

REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>HAZARD WARNING SWITCH>REMOVAL


3.CHECK HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH ASSEMBLY - COMBINATION METER ASSEMBLY AND BODY GROUND)
a.

Disconnect the I4 combination meter assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I38-6 (TB) - I4-12 (HZSW) Always Below 1 Ω
I38-6 (TB) - Body ground Always 10 kΩ or higher
I4-12 (HZSW) - Body ground Always 10 kΩ or higher
I38-3 (E) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE COMBINATION METER ASSEMBLY

Click hereVehicle Interior>METER / GAUGE / DISPLAY>COMBINATION METER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR