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Home >> Lexus >> 2023 >> LS 500h >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/ Advanced Park) - Diagnostic Codes (2 Of 5) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Advanced Park) >> DTC C051D-54: Multi-axis Acceleration Sensor Module "A" Missing Calibration; DTC C1210-54: Yaw Rate Sensor Missing Calibration [11/2021 - 10/2023] >> Description

DTC C051D-54: Multi-axis Acceleration Sensor Module "A" Missing Calibration; DTC C1210-54: Yaw Rate Sensor Missing Calibration [11/2021 - 10/2023]: Description

The yaw rate and acceleration sensor has a built-in airbag ECU assembly.

The No. 2 skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag ECU assembly) via CAN communication.

HINT: 

If there is a malfunction in the bus lines between the yaw rate and acceleration sensor (airbag ECU assembly) and the CAN communication system, DTC U0125-87 is output. When DTC U0125-87 is output together with C051D-54 and/or C1210-54, inspect and repair the trouble areas indicated by U0125-87 first.

These DTCs are also output when the calibration has not been completed.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
C051D-54 Multi-axis Acceleration Sensor Module "A" Missing Calibration Zero point calibration of acceleration sensor undone.
  • Acceleration sensor zero point not calibrated
  • Acceleration sensor (airbag ECU assembly) installation
  • Acceleration sensor (airbag ECU assembly)
  • No. 2 skid control ECU (brake actuator assembly)
Does not come on Output ECU: No. 2 skid control ECU (brake actuator assembly)
C1210-54 Yaw Rate Sensor Missing Calibration Zero point calibration of yaw rate sensor undone.
  • Yaw rate sensor zero point not calibrated
  • Yaw rate sensor (airbag ECU assembly) installation
  • Yaw rate sensor (airbag ECU assembly)
  • No. 2 skid control ECU (brake actuator assembly)
Does not come on Output ECU: No. 2 skid control ECU (brake actuator assembly)