DTC P0571-13: Brake Switch "A" Circuit Open [07/2020 - ]: Description
The No. 2 skid control ECU (brake actuator assembly) detects the brake operating conditions through a signal transmitted by the stop light switch assembly.
The No. 2 skid control ECU (brake actuator 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 |
|---|---|---|---|---|---|---|
| P0571-13 | Brake Switch "A" Circuit Open | When the voltage at terminal +BS is 9.5 V or more and the stop light drive output (STPO) is off, an open in the STP circuit is detected for 0.3 seconds or more. |
|
Does not come on | Brake/EPB | Output ECU: No. 2 skid control ECU (brake actuator assembly) |