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Home >> Toyota >> 2015 >> Avalon Hybrid Limited >> Repair and Diagnosis >> Brakes >> Traction Control >> Electronically Controlled Brake System - Diagnostic Codes (2 Of 2) & Symptom Tests - (Hybrid) >> Electronically Controlled Brake System >> DTC C1451/72: Motor Drive Permission Malfunction [10/2014 - ] >> Description

DTC C1451/72: Motor Drive Permission Malfunction [10/2014 - ]: Description

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