Toyota RAV4 manuals

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
  • Communication circuit
  •  Yaw rate sensor
  •  Distance control ECU
  •  ECM

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
DTC P1631 Communication Error from ECM to VSC 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:

When stopping the engine with the shift lever in a position other than P
If the engine is stopped with the shift lever in a position other than P, the engine switch will not be turned off but instead be turned to ACCESSORY mode. Perform the following procedure to turn the switch off: Check that the parking brake is set. Shift the shift lever to P. Check that t ...

Evaporator temperature sensor
ON-VEHICLE INSPECTION 1. INSPECT A/C EVAPORATOR TEMPERATURE SENSOR (a) Remove the A/C evaporator temperature sensor (A/ C thermistor). (b) Disconnect the connector from the A/C evaporator temperature sensor (A/C thermistor). (c) Measure the resistance according to the value(s) in the ...

Zero Point Calibration of Yaw Rate Sensor Undone
DESCRIPTION The skid control ECU receives signals from the yaw rate sensor via CAN communication system. Yaw rate sensor has the built-in deceleration sensor. If there is trouble in the bus lines between the yaw rate and deceleration sensor and CAN communication system, the DTC U0123 ...

В© 2011-2021 Copyright www.tsienna.net