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Home >> Lexus >> 2007 >> RX 400h AWD >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Brake Control >> 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
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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 inputs the signals from the ECM, power steering (EPS) ECU, steering control (VGRS) ECU, steering angle sensor, and yaw rate and deceleration sensor via the CAN communication system.

DIAGNOSTIC TROUBLE CODE CHART

DTC No. INF Code DTC Detection Condition Trouble Area
U0073/94 360 When either of the following is detected:
  1. After the output of data from the skid control ECU is completed, the sending continues for 5 seconds or more.
  2. The condition that bus OFF state occurs once or more within 100 ms occurs 10 times in succession. (Sent signals cannot be received.)
 CAN communication system
U0123/62 338 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.

  • The condition that data from the yaw rate sensor cannot be received occurs once or more within 5 seconds.
 CAN communication system
U0124/95 319 When either of the following is detected:
  1. With the IG1 terminal voltage 9.5 V or more, data from the deceleration sensor cannot be received for 1 second or more.
  2. With the IG1 terminal voltage 9.5 V or more, the following occurs 10 times in succession.

  • The condition that data from the deceleration sensor cannot be received occurs once or more within 5 seconds.
 CAN communication system
U0126/63 350 When either of the following is detected:
  1. With the IG1 terminal voltage 10 V or more, data from the steering 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.

  • The condition that data from the steering angle sensor cannot be received occurs once or more within 5 seconds.
 CAN communication system
U0293/59 152 With the IG2 terminal voltage at 9.5 V or more for 2 seconds or more, communication with the HV control ECU remains invalid for 2 seconds or more. CAN communication system
U0293/59 153 With the G2 terminal voltage at 9.5 V or more for 2 seconds or more, communication with the HV control ECU that occurs once or more within 5 seconds changes from being valid communication to being invalid communication 10 times or more within 1 minute. CAN communication system
U0293/59 155 With the IG2 terminal voltage at 9.5 V or more for 2 seconds or more, abnormal regenerative braking torque value or braking request torque value is received for 2 seconds or more. CAN communication system
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