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:
DESCRIPTION The skid control ECU (brake actuator assembly) sends signals such as brake request signals to the ECM. If an abnormal signal is detected, the ECM stores DTC P163081. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from P163081 Communication Error from VSC to ECM Invalid Serial Data Received When the dynamic radar cruise control system is operating, the ECM detects abnormal data sent from the skid control ECU (brake actuator assembly) for approximately 1 second or more...
PRECAUTION INITIALIZATION NOTICE:
Before replacing the ECM, refer to Service Bulletin (for Immobiliser System).
When the ECM is replaced, update the ECU security key.
Click here
WHEN USING GTS CAUTION: Observe the following items for safety reasons:
Before using the GTS, read the instruction manual...
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.
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