Toyota Yaris: Dynamic Radar Cruise Control System / Fail-safe Chart
FAIL-SAFE CHART
Constant Speed Control Mode:
| Condition | Multi-information Display | Cruise Control Indicator | Warning Buzzer |
| When the following condition(s) occurs while the vehicle is in motion during cruise control, the system clears the set vehicle speed and cancels cruise control. -
When the vehicle running speed has fallen below the lower speed limit (approximately 30 km/h [20 mph])
| - | Illuminates | - |
| When the following condition(s) occurs while the vehicle is in motion during cruise control, the system clears the set vehicle speed and cancels cruise control. Cruise control is prohibited until the ignition switch is turned off. -
Malfunction in SFI system
| - | Does not illuminate | - |
| When the following condition(s) occurs while the vehicle is in motion during cruise control, there is a possibility of overloading or an overly high set vehicle speed and such. Clear the set vehicle speed and cancel cruise control (can be reset). -
Vehicle speed is less than set vehicle speed by approximately 16 km/h (10 mph) or more
| - | Illuminates | - |
| When the following condition(s) occurs while the vehicle is in motion during cruise control, the system clears the set vehicle speed and cancels cruise control. Cruise control is prohibited until the ignition switch is turned off. -
Open or short in stop light switch circuit
| Cruise Control Malfunction Visit Your Dealer | Does not illuminate | Sounds |
| When the following condition(s) occurs while the vehicle is in motion during cruise control, the system cancels cruise control. Cruise control is prohibited until the ignition switch is turned off. -
Malfunction in stop light switch input circuit
-
Malfunction in cruise control cancel circuit
-
Malfunction in the vehicle stability control system
-
Communication malfunction between skid control ECU (brake actuator assembly) and ECM
| Cruise Control Malfunction Visit Your Dealer | Does not illuminate | Sounds |
| When the following condition(s) occurs while the vehicle is in motion during cruise control, cruise control (set vehicle speed is held) is canceled. -
VSC operates
-
TRC operates for a certain period of time
-
TRC/VSC is turned off
-
Pre-collision system operates
| - | Illuminates | - |
Automatic Cancel Control
Vehicle-to-Vehicle Distance Control Mode:
| Condition | Multi-information Display | Cruise Control Indicator | Warning Buzzer |
| When the following condition(s) occurs while the vehicle is in motion during dynamic radar cruise control, the system clears the set vehicle speed and cancels cruise control. Cruise control is prohibited until the ignition switch is turned off. -
Malfunction in SFI system
| - | Does not illuminate | - |
| When the following condition(s) occurs while the vehicle is in motion during dynamic radar cruise control, the system clears the set vehicle speed and cancels cruise control. Cruise control is prohibited until the ignition switch is turned off. -
Open or short in stop light switch circuit
-
Malfunction in stop light switch input circuit
-
Malfunction in cruise control cancel circuit
-
Malfunction in the vehicle stability control system
-
Communication malfunction between skid control ECU (brake actuator assembly) and ECM
-
Malfunction in the millimeter wave radar sensor assembly
-
Beam axis of millimeter wave radar sensor assembly misaligned
-
Malfunction in brake hold system
| Cruise Control Malfunction Visit Your Dealer | Does not illuminate | Sounds |
| When the following condition(s) occurs while the vehicle is in motion during dynamic radar cruise control, the system clears the set vehicle speed and cancels cruise control. Control is prohibited until the dynamic radar cruise control system is turned off and turned on again. Also, cruise control is prohibited until system returns to normal from the following condition. -
The millimeter wave radar sensor assembly dirty.
-
The forward recognition camera dirty
HINT: It is possible that the system has entered fail-safe mode due to snow or water on the front grille. | Radar Cruise Control Unavailable See Owner's Manual | Does not illuminate | Sounds |
| When the following condition(s) occurs while the vehicle is in motion during dynamic radar cruise control, the system clears the set vehicle speed and cancels cruise control. Control is prohibited until the dynamic radar cruise control system is turned off and turned on again. Also, cruise control is prohibited until system returns to normal from the following condition. -
When vehicle-to-vehicle distance measurement is extremely unstable due to bad weather
-
Brake control by the dynamic radar cruise control system is temporarily unavailable
-
Malfunction in the forward recognition camera or the forward recognition camera is temporarily unavailable
-
The beam axis of the millimeter wave radar sensor assembly is being aligned.
| Radar Cruise Control Unavailable | Does not illuminate | Sounds |
| When the following condition(s) occurs while the vehicle is in motion during cruise control, the system clears the set vehicle speed and cancels cruise control. -
When the vehicle running speed has fallen below the lower speed limit (approximately 30 km/h [20 mph])
| - | Illuminates | Sounds |
| When the following condition(s) occurs while the vehicle is in motion during dynamic radar cruise control, cruise control (set vehicle speed is held) is canceled. -
VSC operates
-
TRC operates for a certain period of time
-
Drive start control is performed
-
TRC/VSC is turned off
-
Pre-collision system operates
| - | Illuminates | - |
FREEZE FRAME DATA CHECK FREEZE FRAME DATA HINT: The ECU records vehicle and driving condition information as freeze frame data the moment a DTC is stored...
DATA LIST / ACTIVE TEST NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not...
Other information:
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...
INSTALLATION PROCEDURE 1. INSTALL TURBINE OUTLET ELBOW GASKET (a) Install a new outlet turbine elbow gasket to the turbocharger sub-assembly. 2. REPLACE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY (a) Temporary install a new exhaust pipe clamp to the exhaust manifold converter sub-assembly...
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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