DTC P0571-62: Brake Switch "A" Signal Compare Failure [04/2018 - 08/2021]: Description
WARNING: This page is about a different variant/trim than selected.
When the brake pedal is depressed, the stop light switch assembly sends a signal to the hybrid vehicle control ECU. When the hybrid vehicle control ECU receives this signal, it cancels the dynamic radar cruise control. The fail-safe function operates to enable normal driving even if there is a malfunction in the stop light signal circuit. The cancellation condition occurs when voltage is applied to the terminal STP. When the brake is applied, voltage is normally applied to the terminal STP of the hybrid vehicle control ECU through the STOP fuse and the stop light switch assembly, and the hybrid vehicle control ECU turns the dynamic radar cruise control system off.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL |
|---|---|---|---|---|
| P0571-62 | Brake Switch "A" Signal Compare Failure | While the power switch is on (IG) and the dynamic radar cruise control system is operating, voltage of the STP terminal and that of the ST1- terminal of the hybrid vehicle control ECU are less than 1 V for approximately 0.5 seconds or more. |
|
Does not come on |