Toyota Yaris: 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 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 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:
These lights turn on or flash to notify the user of the system operation
status or a system malfunction.
KEY
Indicator Light
Wrench Indicator Light
TCS/DSC
Indicator Light
DSC OFF
Indicator Light
Low
Speed Pre-Collision System Indicator Light
Low
Speed Pre-Collision System OFF Indicator Light
Low
Engine Coolant Temperature Indicator Light
Shift
Position Indication
Headlight High-Beam Indicator Light
Turn
Signal/Hazard Warning Indicator Lights
Security Indicator Light
Cruise
Main Indication
Cruise
Set Indication/Indicator Light
Select
Mode Indicator Light
Lights-On Indicator Light
Front
Passenger Air Bag Deactivation Indicator Light
* 1: The light turns on when the ignition is switched on for
an operation check,
and turns off a few seconds later or when the engine is started...
If the high engine coolant temperature warning light turns on,
the vehicle loses power, or you hear a loud knocking or pinging
noise, the engine is probably too hot.
If the high engine coolant temperature warning light turns on:
Drive safely to the side of the road and park off the right-of-way...
Categories
If a key is left in the vehicle, the functions of the key left in the vehicle
are temporarily suspended to prevent theft of the vehicle.
To restore the functions, press the unlock button on the functions-suspended
key in the vehicle.
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