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DTC C1451/72: Motor Drive Permission Malfunction [08/2013 - ]: Description

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

If air bleeding has not been performed, the skid control ECU (brake booster with master cylinder assembly) stores DTC C1451/72 to prevent the entry of air due to pump motor operation.

DTC C1451/72 is stored when Invalid Mode is selected, the system will not return to normal until the air bleeding procedure is performed.

DTC No. INF Code DTC Detection Condition Trouble Area
C1451/72 - Air bleeding has not been performed.
  • Brake fluid leaks
  • Air bleeding not performed