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 [10/2021 - 11/2023]: Description
WARNING: This page is about a different variant/trim than selected.
The No. 1 skid control ECU (brake booster with master cylinder assembly) detects decreases in the accumulator pressure according to the data from the accumulator pressure sensor, and then starts and stops the pump motor by operating the motor relay.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Note |
|---|---|---|---|---|---|
| C141C-12 | Brake Booster Motor "A" Control Circuit Short to Battery | A short is detected in the motor relay drive circuit for 2 seconds or more. |
|
Comes on |
|
| C141C-14 | Brake Booster Motor "A" Control Circuit Short to Ground or Open | When the +BI1 voltage is between 7.3 and 16.6 V and the duty ratio of the pump motor is at 100%, the difference between the voltage at terminal MRI1 and the voltage at the pump motor is more than 1.5 V for 0.12 seconds or more. |
|
Comes on |
|
| C141C-1C | Brake Booster Motor "A" Control Circuit Voltage Out of Range | An open is detected in the motor relay drive circuit for 2 seconds or more. |
|
Comes on |
|