Toyota Yaris: Seat Belt Warning System / Driver Side Seat Belt Warning Light does not Operate

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Vehicle Interior / 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 LH.

WIRING DIAGRAM

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.

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  • 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.

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.

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

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PROCEDURE

1.

PERFORM ACTIVE TEST USING GTS (DRIVER SIDE SEAT BELT WARNING)

(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.

NG

REPLACE COMBINATION METER ASSEMBLY

OK

2.

READ VALUE USING GTS (DRIVER BUCKLE SWITCH)

(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 status

Fastened or Not Fastened

Fastened: Driver side seat belt fastened

Not Fastened: Driver side seat belt not fastened

-

Body Electrical > Combination Meter > Data List

Tester Display

Driver Buckle Switch

OK:

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

OK

REPLACE COMBINATION METER ASSEMBLY

NG

3.

INSPECT FRONT SEAT INNER BELT ASSEMBLY LH

Click here

NG

REPLACE FRONT SEAT INNER BELT ASSEMBLY LH

OK

4.

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

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

O18-3 (+) - H7-34 (BKL)

Always

Below 1 Ω

O18-3 (+) or H7-34 (BKL) - Body ground

Always

10 kΩ or higher

O18-2 (E) - Body ground

Always

Below 1 Ω

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

    On-vehicle Inspection

    ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT DRIVER SEAT BELT WARNING LIGHT HINT: The seat belt warning light on the combination meter assembly is used for both the driver seat and front passenger seat...

    Front Passenger Side Seat Belt Warning Light does not Operate

    DESCRIPTION The combination meter assembly blinks or turns off the passenger seat belt warning light on the combination meter assembly in accordance with the state of the front seat inner belt assembly RH and occupant detection sensor (separate type front seat cushion pad RH)...

    Other information:

    Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Diagnostic Trouble Code Chart


    DIAGNOSTIC TROUBLE CODE CHART SFI System DTC No. Detection Item MIL Note Link P001013 A Camshaft Position Actuator Bank 1 Circuit Open Comes on SAE: P0010 P001100 Camshaft Position "A" - Timing Over-Advanced or System Performance Bank 1 Comes on SAE: P0011 P001200 Camshaft Position "A" - Timing Over-Retarded Bank 1 Comes on SAE: P0012 P001313 Camshaft Position "B" - Actuator Bank 1 Circuit Open Comes on SAE: P0013 P001400 Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1 Comes on SAE: P0014 P001500 Camshaft Position "B" - Timing Over-Retarded Bank 1 Comes on SAE: P0015 P001600 Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A Comes on SAE: P0016 P001700 Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B Comes on SAE: P0017 P003012 HO2S Heater Control Bank 1 Sensor 1 Circuit Short to Battery Comes on SAE: P0032 P003013 HO2S Heater Control Bank 1 Sensor 1 Circuit Open Comes on SAE: P0031 P003312 Turbocharger / Supercharger Bypass Valve "A" Control Circuit Short to Battery - SAE: P0035 P003314 Turbocharger / Supercharger Bypass Valve "A" Control Circuit Short to Ground or Open - SAE: P0034 P003612 HO2S Heater Control Circuit Bank 1 Sensor 2 Circuit Short to Battery Comes on SAE: P0038 P003613 A/F (O2) Heater Control Circuit Bank 1 Sensor 2 Circuit Open Comes on SAE: P0037 P006D62 Barometric Pressure - Turbocharger/Supercharger Inlet Pressure Correlation Bank 1 Signal Compare Failure - SAE: P006D P007A11 Charge Air Cooler Temperature Sensor Bank 1 Circuit Short to Ground - SAE: P007C P007A15 Charge Air Cooler Temperature Sensor Bank 1 Circuit Short to Battery or Open - SAE: P007D P008700 Fuel Rail / System Pressure - Too Low Comes on SAE: P0087 P008800 Fuel Rail / System Pressure - Too High Comes on SAE: P0088 P008A00 Low Pressure Fuel System Pressure - Too Low - SAE: P008A P008B00 Low Pressure Fuel System Pressure - Too High - SAE: P008B P00CF62 Barometric Pressure - Turbocharger / Supercharger Boost Sensor "A" Signal Compare Failure Comes on SAE: P00CF P010012 Mass or Volume Air Flow Sensor "A" Circuit Short to Battery Comes on SAE: P0103 P010014 Mass or Volume Air Flow Sensor "A" Circuit Short to Ground or Open Comes on SAE: P0102 P010511 Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Ground Comes on SAE: P0107 P010515 Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Battery or Open Comes on SAE: P0108 P011011 Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Ground Comes on SAE: P0112 P011015 Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open Comes on SAE: P0113 P011511 Engine Coolant Temperature Sensor 1 Circuit Short to Ground Comes on SAE: P0117 P011515 Engine Coolant Temperature Sensor 1 Circuit Short to Battery or Open Comes on SAE: P0118 P01152A Engine Coolant Temperature Sensor 1 Signal Stuck in Range Comes on SAE: P0116 P012011 Throttle / Pedal Position Sensor / Switch "A" Circuit Short to Ground Comes on SAE: P0122 P012015 Throttle / Pedal Position Sensor / Switch "A" Circuit Short to Battery or Open Comes on SAE: P0123 P01201C Throttle / Pedal Position Sensor / Switch "A" Circuit Voltage Out of Range Comes on SAE: P0121 P012A11 Turbocharger/Supercharger Inlet Pressure Sensor "A" Circuit Low Circuit Short to Ground - SAE: P012C P012A15 Turbocharger/Supercharger Inlet Pressure Sensor "A" Circuit High Circuit Short to Battery or Open - SAE: P012D P013616 A/F (O2) Sensor Circuit Bank 1 Sensor 2 Circuit Current (Voltage) Below Threshold Comes on SAE: P0136 P017100 System Too Lean Bank 1 Comes on SAE: P0171 P017200 System Too Rich Bank 1 Comes on SAE: P0172 P019011 Fuel Rail Pressure Sensor "A" Circuit Short to Ground Comes on SAE: P0192 P019015 Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open Comes on SAE: P0193 P019511 Engine Oil Temperature Sensor Circuit Short to Ground - SAE: P0197 P019515 Engine Oil Temperature Sensor Circuit Short to Battery or Open - SAE: P0198 P020113 Cylinder 1 Injector "A" Circuit Open Comes on SAE: P0201 P020213 Cylinder 2 Injector "A" Circuit Open Comes on SAE: P0202 P020313 Cylinder 3 Injector "A" Circuit Open Comes on SAE: P0203 P022011 Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Ground Comes on SAE: P0222 P022015 Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Battery or Open Comes on SAE: P0223 P023400 Turbocharger/Supercharger "A" Overboost Condition - SAE: P0234 P023511 Turbocharger/Supercharger Boost Sensor "A" Circuit Short to Ground Comes on SAE: P0237 P023515 Turbocharger/Supercharger Boost Sensor "A" Circuit Short to Battery or Open Comes on SAE: P0238 P02351C Turbocharger/Supercharger Boost Sensor "A" Circuit Voltage Out of Range - SAE: P0236 P024313 Turbocharger/Supercharger Wastegate Solenoid "A" Circuit Open Does not come on SAE: P0243 P030000 Random/Multiple Cylinder Misfire Detected Comes on/Blinks* *: The MIL flashes when a catalyst-damaging misfire is detected...

    Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Operation Check


    OPERATION CHECK INPUT SIGNAL CHECK (a) Connect the GTS to the DLC3. (b) Check the steering pad switch assembly using the Data List function of the GTS (cruise control main switch, -SET switch, +RES switch and CANCEL switch). *1 Steering Pad Switch Assembly *a Cruise Control Main Switch *b -SET Switch *c +RES Switch *d CANCEL Switch Click here INSPECT CRUISE CONTROL MAIN SWITCH (a) Turn the ignition switch to ON...

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