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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 135 (Electronically Controlled Brake System (HV) - Diagnostic Codes (09 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C141C-12: Brake Booster Motor "A" Control Circuit Short to Battery; DTC C141C-14: Brake Booster Motor "A" Control Circuit Short to Ground or Open; DTC C141C-1C: Brake Booster Motor "A" Control Circuit Voltage Out of Range [11/2023 - ] >> Monitor Strategy

Monitor Strategy

WARNING: This page is about a different variant/trim than selected.
Related DTCs C140F: Brake booster motor circuit open
C141E: Brake booster motor circuit high
C141D: Brake booster motor open circuit
Required Sensors/Components (Main) No. 2 skid control ECU (brake actuator assembly)
Brake booster with accumulator pump assembly
Required Sensors/Components (Related) No. 2 skid control ECU (brake actuator assembly)
Brake booster with accumulator pump assembly
Frequency of Operation Continuous
Duration 0.12 seconds: C140F (Case 3) and C141D
2 seconds: C140F (Case 1) and C141E (Case 1)
2.004 seconds: C140F (Case 2)
4.002 seconds: C141E (Case 2 and 3)
MIL Operation Immediately
Sequence of Operation None
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