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Home >> Toyota >> 2009 >> Sienna CE >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control >> Vehicle Stability Control System >> DTC U0073/94 Control Module Communication Bus OFF; DTC U0100/65 Lost Communication with ECM / PCM; DTC U0123/62 Lost Communication with Yaw Rate Sensor Module; DTC U0124/95 Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/63 Lost Communication with Steering Angle Sensor Module >> Description
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DTC U0073/94 Control Module Communication Bus OFF; DTC U0100/65 Lost Communication with ECM / PCM; DTC U0123/62 Lost Communication with Yaw Rate Sensor Module; DTC U0124/95 Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/63 Lost Communication with Steering Angle Sensor Module: Description

The skid control ECU receives the signals from the ECM, steering angle sensor, and yaw rate and deceleration sensor via the CAN communication system.

DTC Chart

DTC Code DTC Detection Condition Trouble Area
U0073/94 When any of the following is detected:
1. With the IG1 terminal voltage 10 V or more, after the output of data from the skid control ECU is completed, the sending continues for 5 seconds or more.
2. With the IG1 terminal voltage 10 V or more, the condition that bus OFF state occurs once or more within 0.1 seconds occurs 10 times in succession. (Sent signals cannot be received.)
3. With the IG1 terminal voltage 10 V or more, a delay in receiving data from the yaw rate and deceleration sensor and steering angle sensor continues for 1 second or more.
4. With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds:
- Data from the yaw rate and deceleration sensor and the steering angle sensor cannot be received occurs once or more within 5 seconds.		 CAN communication system
U0100/65 When either of the following is detected:
1. With the IG1 terminal voltage 10 V or more and the vehicle speed 15 km/h (9 mph) or more, data cannot be sent to the ECM for 2 seconds or more.
2. The IG1 terminal voltage 10 V or more and the vehicle speed 15 km/h (9 mph) or more, data cannot be received from the ECM for 2 seconds or more.		 CAN communication system (Skid control ECU to ECM)
U0123/62 When either of the following is detected:
1. With the IG1 terminal voltage 10 V or more, data from the yaw rate sensor cannot be received for 1 second or more.
2. With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds:
- Data from the yaw rate sensor cannot be received occurs once or more within 5 seconds.		 CAN communication system (Skid control ECU to yaw rate and deceleration sensor)
U0124/95 When either of the following is detected:
1. With the IG1 terminal voltage 10 V or more, data from the deceleration sensor cannot be received for 1 second or more.
2. With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds:
- Data from the deceleration sensor cannot be received occurs once or more within 5 seconds.		 CAN communication system (Skid control ECU to yaw rate and deceleration sensor)
U0126/63 When either of the following is detected:
1. With the IG1 terminal voltage 10 V or more, data from the steering angle sensor cannot be received for 1 second or more.
2. With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds:
- Data from the steering angle sensor cannot be received occurs once or more within 5 seconds.		 CAN communication system (Skid control ECU to steering angle sensor)
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