DTC P0571-00: Brake Switch "A" [07/2020 - ]: Description
The No. 1 skid control ECU (brake booster with master cylinder assembly) detects the brake operating conditions through a signal transmitted by the stop light switch assembly.
The No. 1 skid control ECU (brake booster with master cylinder assembly) incorporates a circuit to detect an open circuit. This DTC is output when an open circuit is detected in the stop light signal input line.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Note |
|---|---|---|---|---|---|---|
| P0571-00 | Brake Switch "A" | An open in the stop light switch circuit continues for 10 seconds or more. |
|
Does not come on | Brake Booster | Output ECU: No. 1 skid control ECU (brake booster with master cylinder assembly) |