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Home >> Toyota >> 2021 >> Mirai Limited >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System - Diagnostic Codes (3 Of 4) >> Electronically Controlled Brake System >> DTC C141C-49: Brake Booster Motor "A" Control Internal Electronic Failure [11/2020 - ] >> Description

DTC C141C-49: Brake Booster Motor "A" Control Internal Electronic Failure [11/2020 - ]: Description

Refer to DTC C0594-00.

Refer to DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority Note
C141C-49 Brake Booster Motor "A" Control Internal Electronic Failure Either of the following is detected:
  • When the voltage at terminal +BI1 is between 7.3 and 16.6 V, overcurrent is detected in the motor relay for 0.054 seconds or more.
  • Overcurrent is detected in the motor fail-safe relay for 0.054 seconds or more.
No. 1 skid control ECU (brake booster with master cylinder assembly) Brake Booster A Output ECU: No. 1 skid control ECU (brake booster with master cylinder assembly)
C141C-49 DTC DETECTION CONDITIONS

  Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition When the voltage at terminal +BI1 is between 7.3 and 16.6 V ◦ -
Malfunction Status Overcurrent is detected in the motor relay ◦ -
Overcurrent is detected in the motor fail-safe relay - ◦
Detection Time 0.054 seconds or more. 0.054 seconds or more.
Number of Trips 1 trip 1 trip

HINT: 

DTC will be output when conditions for either of the patterns in the table above are met.