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Home >> Toyota >> 2011 >> Highlander Hybrid >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Electronically Controlled Brake System (Diagnostic Codes & Symptom Tests) (Hybrid) >> Electronically Controlled Brake System >> DTC U0073/94: Control Module Communication Bus OFF; 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; DTC U0293/59: Communication Error from HV ECU >> Description

DTC U0073/94: Control Module Communication Bus OFF; 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; DTC U0293/59: Communication Error from HV ECU: Description

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

DTC Code INF Code DTC Detection Condition Trouble Area
U0073/94 400
401		 Either of the following is detected:
  1. With IG1 terminal voltage at 10 V or more, communication with yaw rate sensor does not occur within specified time. (Yaw rate sensor response malfunction)
  2. With IG1 terminal voltage at 10 V or more, communication with acceleration sensor does not occur within specified time. (Acceleration sensor response malfunction)
  • CAN communication system (V1 bus)
  • Yaw rate and acceleration sensor
  • Skid control ECU
↑ 402 With IG1 terminal voltage at 10 V or more, communication with steering angle sensor does not occur within specified time. (Steering angle sensor response malfunction)
  • CAN communication system (V1 bus)
  • Steering angle sensor
  • Skid control ECU
↑ 406
411		 CAN communication line (power management bus) has open or short, and cannot perform communication.
  • CAN communication system (Power management bus)
  • Skid control ECU
↑ 407
412		 CAN communication line (V1 bus) has open or short, and cannot perform communication.
  • CAN communication system (V1 bus)
  • Skid control ECU
U0123/62 338 With the IG1 terminal voltage at 10 V or more, data from the yaw rate sensor cannot be received for 1 second or more.
  • CAN communication system
  • Yaw rate and acceleration sensor
  • Skid control ECU
↑ 339 With the IG1 terminal voltage at 10 V or more, the following occurs 10 times in succession:
  • Data from the yaw rate sensor cannot be received once or more within 5 seconds.
 ↑
U0124/95 319 With the IG1 terminal voltage at 10 V or more, data from the acceleration sensor cannot be received for 1 second or more.
  • CAN communication system
  • Yaw rate and acceleration sensor
  • Skid control ECU
↑ 320 With the IG1 terminal voltage at 10 V or more, the following occurs 10 times in succession:
  • Data from the acceleration sensor cannot be received once or more within 5 seconds.
 ↑
U0126/63 350 With the IG1 terminal voltage at 10 V or more, data from the steering angle sensor cannot be received for 1 second or more.
  • CAN communication system
  • Steering angle sensor
  • Skid control ECU
↑ 601 With the IG1 terminal voltage at 10 V or more, the following occurs 10 times in succession:
  • Data from the steering angle sensor cannot be received once or more within 5 seconds.
 ↑
U0293/59 152 With the IG2 terminal voltage at 9.5 V or more, data from the hybrid vehicle control ECU cannot be received for 2 seconds or more.
  • CAN communication system
  • Hybrid vehicle control ECU
  • Skid control ECU
↑ 153 With the IG2 terminal voltage at 9.5 V or more, data from the hybrid vehicle control ECU cannot be received once or more within 5 seconds and this occurs 10 times in succession. ↑
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