Toyota Yaris: Front Radar Sensor System / System Diagram
SYSTEM DIAGRAM

CAUTION / NOTICE / HINT HINT:
Before performing troubleshooting for the front radar sensor system, perform troubleshooting for the pre-collision system...
Other information:
DATA LIST / ACTIVE TEST DATA LIST 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.
The steering lock ECU (steering lock actuator or upper bracket assembly) communicates with the GTS through the certification ECU (smart key ECU assembly) which uses CAN communication...
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 B278187 Steering Lock System Missing Message No communication between certification ECU (smart key ECU assembly) and steering lock ECU (steering lock actuator or upper bracket assembly) for 10 seconds or more...
Categories
No special break-in is necessary, but a few precautions in the first 600
miles (1,000 km) may add to the performance, economy, and life of
the vehicle.
Do not race the engine.
Do not maintain one constant speed, either slow or fast, for a long
period of time.
Do not drive constantly at full-throttle or high engine rpm for
extended periods of time.
Avoid unnecessary hard stops.
Avoid full-throttle starts.
read more