RM38N0EC _58 Vehicle Interior _111840 SEAT BELT _0505353 SEAT BELT WARNING SYSTEM J

SEAT BELT  SEAT BELT WARNING SYSTEM  Driver Side Seat Belt Warning Light does not Operate  


DESCRIPTION

The combination meter assembly blinks or turns off the seat belt warning light on the combination meter assembly in accordance with the state of the front seat inner belt assembly of the driver seat.

WIRING DIAGRAM

C380578E30
4.458,0.958 5.073,1.156 0.615,0.198 10 false BKL 3.75,0.844 4.365,1.042 0.615,0.198 10 false 8*1, 29*2 4.385,1.875 5.375,2.115 0.99,0.24 10 false E17*1, E143*2 4.375,2.052 6.51,2.313 2.135,0.26 10 false Combination Meter Assembly 1.125,1.5 3.083,2.229 1.958,0.729 10 false Front Seat Inner Belt Assembly (Driver Seat) 1.125,1.313 2.188,1.583 1.063,0.271 10 false L45 2.479,0.844 3.094,1.042 0.615,0.198 10 false 3 1.323,0.854 1.938,1.052 0.615,0.198 10 false 2 1.542,0.854 2.156,1.052 0.615,0.198 10 false E 2.271,0.844 2.885,1.042 0.615,0.198 10 false + 0.375,2.083 2.51,2.344 2.135,0.26 10 false *1: for Optitron Meter Type 0.375,2.396 2.51,2.656 2.135,0.26 10 false *2: for TFT Meter Type

CAUTION / NOTICE / HINT

NOTICE:
·

The seat belt warning system uses the CAN communication system and CXPI communication system. First, confirm that there is no malfunction in the CAN communication system and CXPI communication system. Refer to the How to Proceed with Troubleshooting procedure.

Click hereVehicle Interior>SEAT BELT>SEAT BELT WARNING SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING

·

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



HINT:
·

The seat belt warning light on the combination meter assembly is used for both the driver seat and front passenger seat. Check that the operation of the seat belt warning light is normal first.

Click hereVehicle Interior>SEAT BELT>SEAT BELT WARNING SYSTEM>ON-VEHICLE INSPECTION

·

If the seat belt warning light does not operate for both the driver seat and front passenger seat, replace the combination meter assembly.

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



PROCEDURE

1.CONFIRM MODEL
a.

Choose the model to be inspected.

Result:
Result Proceed to
for TFT Meter Type A
for Optitron Meter Type B




A

2.PERFORM ACTIVE TEST USING GTS

B

3.PERFORM ACTIVE TEST USING GTS
2.PERFORM ACTIVE TEST USING GTS
a.

Perform the Active Test according to the display on the GTS.

Body Electrical > Combination Meter > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Multi Display All (White) Multi-information display
(White color display) 		ON -
OK:

The multi-information display turns on or off in accordance with GTS operation.



Result:
Proceed to
OK
NG



OK

4.READ VALUE USING GTS

NG

REPLACE COMBINATION METER ASSEMBLY

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


3.PERFORM ACTIVE TEST USING GTS
a.

Perform the Active Test according to the display on the GTS.

Body Electrical > Combination Meter > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Driver Side Seat Belt Warning Front seat belt warning light ON or OFF -
OK:

The GTS display changes correctly in response to the warning light condition.



Result:
Proceed to
OK
NG



OK

4.READ VALUE USING GTS

NG

REPLACE COMBINATION METER ASSEMBLY

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


4.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
Driver Buckle Switch Driver side seat belt buckle switch Fastened or Not Fastened Fastened: Driver seat belt buckle switch fastened
Not Fastened: Driver seat belt buckle switch unfastened 		-
Body Electrical > Combination Meter > Data List
Tester Display
Driver Buckle Switch
50003 409 26
OK:

The GTS display changes correctly in response to the driver seat belt condition.



Result:
Proceed to
OK
NG



OK

REPLACE COMBINATION METER ASSEMBLY

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


NG

5.INSPECT FRONT SEAT INNER BELT ASSEMBLY (DRIVER SEAT)
5.INSPECT FRONT SEAT INNER BELT ASSEMBLY (DRIVER SEAT)

Click hereVehicle Interior>SEAT BELT>FRONT SEAT INNER BELT ASSEMBLY (for Power Seat)>INSPECTION

Result:
Proceed to
OK
NG



OK

6.CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY (DRIVER SEAT) - COMBINATION METER ASSEMBLY AND BODY GROUND)

NG

REPLACE FRONT SEAT INNER BELT ASSEMBLY (DRIVER SEAT)

Click hereVehicle Interior>SEAT BELT>FRONT SEAT INNER BELT ASSEMBLY (for Power Seat)>REMOVAL


6.CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY (DRIVER SEAT) - COMBINATION METER ASSEMBLY AND BODY GROUND)
a.

Disconnect the E17*1, E143*2 combination meter assembly connector.

*1: for Optitron Meter Type

*2: for TFT Meter Type



b.

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

Standard Resistance:
for Optitron Meter Type
Tester Connection Condition Specified Condition

Click Location & Routing(L45,E17)Location & Routing

Click Connector(L45)Seat>No. 2 Floor Wire>Front Seat Inner Belt Assembly LH

Click Connector(E17)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Combination Meter Assembly

L45-3 (+) - E17-8 (BKL) Always Below 1 Ω
L45-3 (+) or E17-8 (BKL) - Body ground Always 10 kΩ or higher
L45-2 (E) - Body ground Always Below 1 Ω

for TFT Meter Type
Tester Connection Condition Specified Condition

Click Location & Routing(L45,E143)Location & Routing

Click Connector(L45)Seat>No. 2 Floor Wire>Front Seat Inner Belt Assembly LH

Click Connector(E143)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Combination Meter Assembly

L45-3 (+) - E143-29 (BKL) Always Below 1 Ω
L45-3 (+) or E143-29 (BKL) - Body ground Always 10 kΩ or higher
L45-2 (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