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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 65 (Electronically Controlled Brake System (HV) - Diagnostic Codes (10 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C14C9-A2: Electronic Brake Booster Control Module "A" System Voltage Low [11/2023 - ] >> Description

DTC C14C9-A2: Electronic Brake Booster Control Module "A" System Voltage Low [11/2023 - ]: Description

WARNING: This page is about a different variant/trim than selected.

Refer to DTC C110E-14.

Refer to DTC C110E-14: Brake Booster Motor "A" Supply Voltage Circuit Short to Ground or Open [11/2023 - ]

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
C14C9-A2 Electronic Brake Booster Control Module "A" System Voltage Low The voltage of terminal +BI1 is less than 7.3 V and the pump motor is being driven, the output of the pump motor is excessively low for 1 second or more.
  • Improperly connected connector, deformation or corrosion of terminals
  • Wire harness and connector
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
Comes on
  • SAE Code: C14CA
  • Output ECU: Both skid control ECUs