DTC P0571 Stop Light Switch Circuit Malfunction: Description
The ECM receives the brake demand signal from the cruise control ECU (distance control ECU) and transmits it to the ABS & traction actuator assembly (skid control ECU).
The ABS & traction actuator assembly (skid control ECU) receives a signal from the ECM and operates the brake actuator.
The ABS & traction actuator assembly (skid control ECU) operates the brake actuator and illuminates the stop light by operating the BRK relay at the same time.
DTC DETECTION CONDITION - TROUBLE AREA TABLE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0571/76 | This malfunction code is output when the ECM detects the BRK relay error signal from the ABS & traction actuator assembly (skid control ECU) for 0.2 sec. or more while the dynamic cruise control is in operation. |
|