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Home >> Lexus >> 2008 >> LS 460 >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Brake Control >> Electronically Controlled Brake 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; DTC U0128/13 Lost Communication with Park Brake Control Module; DTC U0130/68 Lost Communication with Steering Effort Control Module; DTC U0131/67 Lost Communication with Power Steering Control 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; DTC U0128/13 Lost Communication with Park Brake Control Module; DTC U0130/68 Lost Communication with Steering Effort Control Module; DTC U0131/67 Lost Communication with Power Steering Control Module: Description

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

DTC DETECTION CONDITION CHART

DTC Code Information Code DTC Detection Condition Trouble Area
U0073/94 400 Yaw rate and acceleration sensor communication response malfunction:
With IG1 voltage 10 V or more, communication with G sensor does not occur within specified time
  • CAN communication line 1 (Steering bus)
  • Yaw rate and acceleration sensor
  • Skid control ECU
↑ 402 Steering angle sensor communication response malfunction:
With IG1 voltage 10 V or more, communication with steering angle sensor does not occur within specified time
  • CAN communication line 1 (Steering bus)
  • Yaw rate and acceleration sensor
  • Skid control ECU
↑ 403 Steering control ECU communication response malfunction:
With IG1 voltage 10 V or more, communication with steering control ECU does not occur within specified time
  • CAN communication line 1 (Steering bus)
  • Steering control ECU
↑ 405
410		 CAN communication line 3 (V bus) has open or short, and cannot perform communication (405: continuous bus off malfunction (V bus); 410: transmission lock malfunction (V bus))
  • CAN communication line 3 (V bus)
  • Skid control ECU
↑ 406
411		 CAN communication line 2 (braking and driving bus) has open or short, and cannot perform communication (406: continuous bus off malfunction (braking and driving bus); 411: transmission lock malfunction (braking and driving bus))
  • CAN communication line 2 (Braking and driving bus)
  • Skid control ECU
↑ 407
412		 CAN communication line 1 (steering bus) has open or short, and cannot perform communication (407: continuous bus off malfunction (steering bus); 412: transmission lock malfunction (steering bus))
  • CAN communication line 1 (Steering bus)
  • Skid control ECU
U0100/65 165
166
167		 When the following continues for 2 seconds or more:
  • With the IG1 terminal voltage 10 V or more and data cannot be sent to the ECM or the skid control ECU cannot receive signals.
  • CAN communication system
  • ECM
  • Skid control ECU
U0123/62 338 With the IG1 terminal voltage 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 10 V or more, the following occurs 10 times in succession within 60 seconds.
  • The condition that data from the yaw rate sensor cannot be received occurs once or more within 5 seconds.
 ↑
U0124/95 319 With the IG1 terminal voltage 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 10 V or more, the following occurs 10 times in succession within 60 seconds.
  • The condition that data from the acceleration sensor cannot be received occurs once or more within 5 seconds.
 ↑
U0126/63 350 With the IG1 terminal voltage 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 10 V or more, the following occurs 10 times in succession within 60 seconds.
  • The condition that data from the steering angle sensor cannot be received occurs once or more within 5 seconds.
 ↑
U0128/13 425 With terminal IG1 voltage at 10 V or more, data cannot be received from the electric parking brake ECU for 1 second.
  • CAN communication system
  • Electric parking brake ECU
  • Skid control ECU
U0130/68 370 With the IG1 terminal voltage 10 V or more, data from the steering control ECU cannot be received for 1 second or more.
  • CAN communication system
  • Steering control ECU
  • Skid control ECU
↑ 371 With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds.
  • The condition that data from the steering control ECU cannot be received occurs once or more within 5 seconds.
 ↑
U0131/67 374 With the IG1 terminal voltage 10 V or more, data from the power steering ECU cannot be received for 1 second or more.
  • CAN communication system
  • Power steering ECU
  • Skid control ECU
↑ 375 With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds.
  • The condition that data from the power steering ECU cannot be received occurs once or more within 5 seconds.
 ↑
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