SEAT BELT WARNING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code	DTC Name
	HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips

Use this procedure to troubleshoot the seat belt warning system.
*: Use the GTS.

PROCEDURE

VEHICLE BROUGHT TO WORKSHOP

Result

Proceed to
NEXT

CUSTOMER PROBLEM ANALYSIS

Interview the customer to confirm the trouble Click here.

Result

Proceed to
NEXT

INSPECT AUXILIARY BATTERY VOLTAGE

Measure the auxiliary battery voltage with the power switch off.

Standard Voltage
11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

Result

Proceed to
NEXT

CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

Using the GTS, check if the CAN communication system is functioning normally Click here.

Result

Result	Proceed to
CAN DTC is not output	A
CAN DTC is output	B

GO TO CAN COMMUNICATION SYSTEM Click here

CHECK DTC OUTPUT (AIRBAG SYSTEM)*

Clear the DTCs Click here.

Recheck for DTCs Click here.

Result

Result	Proceed to
DTC is not output	A
DTC is output	B

GO TO AIRBAG SYSTEM Click here

CHECK COMBINATION METER ASSEMBLY

Check that the operation of the speedometer, shift indicator and brake warning light on the combination meter assembly.

OK
The speedometer, shift indicator and brake warning light on the combination meter assembly operate normally.

Result

Proceed to
OK
NG

GO TO METER / GAUGE SYSTEM Click here

PROBLEM SYMPTOMS TABLE

Refer to Problem Symptoms Table Click here.

Result

Result	Proceed to
Fault is not listed in Problem Symptoms Table	A
Fault is listed in Problem Symptoms Table	B

GO TO STEP 9 Click here

OVERALL ANALYSIS AND TROUBLESHOOTING*

Data List / Active Test Click here
Terminals of ECU Click here

On-vehicle Inspection Click here

Result

Proceed to
NEXT

REPAIR OR REPLACE

Result

Proceed to
NEXT

CONFIRMATION TEST

Result

Proceed to
NEXT

END