Toyota Yaris: Airbag System / Problem Symptoms Table

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Vehicle Interior / Supplemental Restraint Systems / Airbag System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Airbag System

Symptom	Suspected Area	Link
The SRS warning light turns off after the primary check, but then comes on	Wire harness CAN communication system Combination meter assembly Airbag sensor assembly
The SRS warning light always comes on even when DTCs are not output	Wire harness Combination meter assembly Airbag sensor assembly
When the ignition switch is turned to ON, the SRS warning light does not come on	Wire harness Combination meter assembly Airbag sensor assembly
Airbag cut off switch position and passenger airbag ON/OFF indicator status do not match	Wire harness Airbag cut off switch cylinder sub-assembly Airbag sensor assembly

Operation Check

OPERATION CHECK PRECAUTION FOR OPERATION CHECK Be sure to read Precaution thoroughly before servicing. Click here Be sure to correctly follow the removal and installation procedures for the SRS parts...

Terminals Of Ecu

TERMINALS OF ECU AIRBAG SENSOR ASSEMBLY Terminal No. Terminal Symbol Destination O24-1 ICR+ Curtain shield airbag assembly RH O24-2 ICR- O24-3 PR- Front seat outer belt assembly RH O24-4 PR+ O24-5 PL+ Front seat outer belt assembly LH O24-6 PL- O24-7 ICL- Curtain shield airbag assembly LH O24-8 ICL+ O24-9 SFR+ Front seat airbag assembly RH O24-10 SFR- O24-15 SFL- Front seat airbag assembly LH O24-16 SFL+ O24-19 BCR- No...

Other information:

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Communication between ECUs connected by LIN Bus off (B278588)

DESCRIPTION This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and steering lock ECU (steering lock actuator or upper bracket assembly) stops for 10 seconds or more. DTC No. Detection Item DTC Detection Condition Trouble Area B278588 Communication between ECUs connected by LIN Bus off No communication between steering lock ECU (steering lock actuator or upper bracket assembly) and certification ECU (smart key ECU assembly) for 10 seconds or more...

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

REMOVAL PROCEDURE 1. REMOVE REAR BUMPER SIDE SEAL LH (a) Apply protective tape around the rear bumper assembly. HINT: Use the same procedure for the RH side and LH side. Protective Tape (b) Remove the 5 clips and nut to remove the rear bumper side seal LH...