DTC C1256-00: Accumulator Low Pressure Abnormality [11/2020 - ]: Description
The accumulator pressure sensor is built into the brake booster with master cylinder assembly and detects the accumulator pressure.
The No. 1 skid control ECU (brake booster with master cylinder assembly) turns on the brake system warning light (red indicator) and brake system warning light (yellow indicator), and sounds the meter buzzer if it senses a decrease in the accumulator pressure.
DTC C1256-00 may be stored if the accumulator pressure drops due to frequent braking (this is not a malfunction).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|
| C1256-00 | Accumulator Low Pressure Abnormality | Significant drop in accumulator pressure continues. (DTCs will be stored and the buzzer will sound when the above condition is met.) |
|
Brake Booster | B | Output ECU: No. 1 skid control ECU (brake booster with master cylinder assembly) |