DTC P1578 Brake System Malfunction: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is output when the VSC system has a problem. Check the VSC system when this DTC is output.
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P1578 | The ECM receives a brake system error signal for 0 2 sec or more while the dynamic radar cruise control is in operation | VSC system |