Toyota Yaris: Airbag System / Problem Symptoms Table

Toyota Yaris XP210 (2020-2025) 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 (2020-2025) Reapir and Service Manual: Disassembly

DISASSEMBLY CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The procedure listed below is for the LH side. PROCEDURE 1. REMOVE REAR TURN SIGNAL LIGHT LED (a) Remove the rear turn signal light LED as shown in the illustration...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Fail-safe Chart

FAIL-SAFE CHART If any of the following DTCs are stored, the engine stop and start ECU enters fail-safe mode to preserve vehicle operability. DTC Component Fail-safe Operation Fail-safe Deactivation Condition P033562 Open in engine speed signal circuit Stop and start control is prohibited Engine is automatically restarted if a DTC is stored while the engine is stopped by stop and start control All of the following conditions are met for 10 seconds: Normal communication with ECM Engine speed 500 rpm or higher Engine speed (communication signal) 500 rpm or higher Difference between engine speed from pulse signal and engine speed from communication signal is less than 100 rpm P055500 P05552A Vacuum sensor assembly Brake booster assembly Vacuum hose (brake booster hose) Stop and start control is prohibited Engine is automatically restarted if a DTC is stored while the engine is stopped by stop and start control One of the following conditions is met: Vacuum changes while the brake pedal is depressed Vacuum changes a specified number of times while the vehicle is being driven faster than a certain vehicle speed P055511 P055515 Vacuum sensor assembly circuit Stop and start control is prohibited Engine is automatically restarted if a DTC is stored while the engine is stopped by stop and start control Sensor output is within standard range P060629 Engine stop and start ECU Stop and start control is prohibited Engine is automatically restarted if a DTC is stored while the engine is stopped by stop and start control Pass condition detected and ignition switch turned to ON P060B1C P060B49 P060B71 Analog to digital converter (Engine stop and start ECU) Stop and start control is prohibited Engine is automatically restarted if a DTC is stored while the engine is stopped by stop and start control Pass condition detected and ignition switch turned to ON P061519 ST NO...