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
Communication Error from ECM to VSC
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DTC U0100 Lost Communication with ECM/PCM "A"
DESCRIPTION
The ECM sends signals such as A/T information signals, dynamic laser cruise
contr ...
Lost Communication with Steering Angle Sensor
Module
DTC U0126 Lost Communication with Steering Angle Sensor
Module
DESCRIPTION
This circuit detects the angle and direction of the steering wheel and
automatically transmits a signal to
the skid con ...
Other materials:
Removal
1. DRAIN BRAKE FLUID
NOTICE:
Wash brake fluid off immediately if it adheres to any
painted surface.
2. DISCONNECT BATTERY NEGATIVE TERMINAL
3. REMOVE AIR CLEANER ASSEMBLY WITH HOSE
4. REMOVE BRAKE ACTUATOR WITH BRACKET
(a) Release the latch of the brake actuator connector to
disconnect t ...
Disassembly
1. REMOVE REAR NO. 2 SEAT COVER BEZEL
Remove the 3 screws.
Disengage the 3 claws and remove the rear No. 2
seat cover bezel.
2. REMOVE REAR SEAT RECLINING COVER RH
Remove the 2 screws.
Disengage the claw and remove the rear seat
reclining cover RH.
...
Problem symptoms table
HINT:
Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms
are listed in order of probability in the "Suspected Area"
column of the table. Check each symptom by checking the
suspected areas in the order they are listed. Re ...
