Toyota Yaris: Front Radar Sensor System / Diagnosis System
DIAGNOSIS SYSTEM
DIAGNOSIS FUNCTION
(a) If a malfunction is detected in the millimeter wave radar sensor assembly, the millimeter wave radar sensor assembly stores DTCs without directly informing the driver, and sends malfunction signals to the systems that use the millimeter wave radar sensor assembly.
Those systems then notify the driver.
HINT:
Refer to "HOW TO PROCEED WITH TROUBLESHOOTING" when troubleshooting for the Pre-collision System.
Click here
TERMINALS OF ECU NOTICE:
Turning the ignition switch to ON with connectors disconnected may cause DTCs to be stored. Make sure to clear the DTCs after inspection has been performed...
DTC CHECK / CLEAR CHECK DTC (a) Check for DTCs (Test Failed / Pending / Confirmed). Body Electrical > Front Radar Sensor > Trouble Codes GTS Display Description Test Failed Represent malfunctions that were detected during the current trip...
Other information:
Sunlight sensorDo not place objects on the
sunlight sensor. Otherwise,
the interior temperature may
not adjust correctly.
Interior temperature sensor
Do not cover the interior temperature sensor. Otherwise,
the interior temperature may
not adjust correctly...
DIAGNOSIS SYSTEM FUNCTION OF WARNING INDICATOR AND MESSAGE (a) If the pre-collision system is not functioning properly, the driver is warned by the PCS warning light and a warning message is displayed on the multi-information display. Warning Message Detail DTC/RoB PCS warning light "Pre-Collision System Malfunction Visit Your Dealer" Pre-collision system malfunctioning Stored Illuminates "Pre-Collision System Radar In Self Calibration Unavailable See Owner's Manual" Millimeter wave radar sensor assembly misaligned Stored Illuminates "Pre-Collision System Out of Temperature Range Unavailable See Owner's Manual" Millimeter wave radar sensor assembly temperature malfunction Stored Illuminates "Pre-Collision System Unavailable See Owner's Manual"
Millimeter wave radar sensor assembly voltage malfunction
Determination was made for temporary suspension of system operation due to millimeter wave radar sensor assembly detecting interference from other nearby radar emitters
Stored Illuminates "Pre-Collision System Radar Sensor Blocked Unavailable Clean Radar Sensor" Foreign matter attached to millimeter wave radar sensor assembly Stored Illuminates "Front Camera Unavailable See Owner's Manual" Abnormal forward recognition camera voltage Stored Illuminates "Front Camera Out of Temperature Range Unavailable Wait until Normal Temperature" Forward recognition camera temperature outside of operational range Stored Illuminates "Front Camera Low Visibility Unavailable See Owner's Manual"
Foreign matter attached to forward recognition camera or area of windshield in front of forward recognition camera
Forward recognition camera or area of windshield in front of forward recognition camera is fogged up
Stored Illuminates "VSC Turned Off Pre-Collision Brake System Unavailable" VSC system is disabled Not stored Illuminates PCS Warning Light Illumination Status PCS Warning Light Condition Illuminates Pre-collision system malfunctioning Pre-collision system temporarily disabled During pre-collision system radar alignment Pre-collision system disabled VSC system disabled Not illuminated Other INITIAL CHECK (a) An initial check is performed when the ignition switch is off for more than 2 seconds and then turned ON...
Categories
WARNING
Never allow a person to ride in the luggage compartment/trunk
Allowing a person to ride in the luggage compartment/trunk is
dangerous.
The person in the luggage compartment/trunk could be seriously injured or
killed during sudden braking or a collision.
Do not drive with the liftgate/trunk lid open
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