Toyota Sienna Service Manual: Communication Error of Yaw Rate Sensor
DTC U0123 Communication Error of Yaw Rate Sensor
DESCRIPTION
This circuit detects the yaw rate of the vehicle and transmits its signal to the skid control ECU and distance control ECU.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|
U0123 |
While the dynamic laser cruise control is either preparing for operation or operating, the ECM continuously receives a yaw rate sensor malfunction signal for a certain amount of time |
|
INSPECTION PROCEDURE
HINT: This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.
1 CHECK CAN COMMUNICATION SYSTEM
Refer to HOW TO PROCEED WITH TROUBLESHOOTING
END
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DESCRIPTION
This circuit detects the angle and direction of the steering wheel and
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Rear Air Mix Damper Position Sensor Circuit
DESCRIPTION
This sensor detects the position of the rear air mix control servo motor
(water valve servo motor) and
sends the appropriate signals to the A/C amplifier. The position sensor is built
in the rear air mix control
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The position sensor's r ...
Customizing vehicle features
Changing using the audio system screen
Audio system with “CAR” button
Press the “SETUP” button.
Select “Vehicle” on the “Setup” screen.
Audio system with “APPS” button
Press the “APPS” button.
Select “Setup” on the “Apps” screen and select ...
Data list / active test
1. USING INTELLIGENT TESTER
Connect the intelligent tester to the DLC3.
Monitor the ECU data by following the prompts on
the tester screen.
HINT:
The intelligent tester has a "Snapshot" function
which records the monitored data.
Refer to the intelligent tester o ...