DTC P0385 Lexus
Left Front Brake Hydraulic Circuit Blocked
Left Front Brake Hydraulic Circuit Blocked
Description
Ignition ON, accumulator pressure is less than 9,000 kPa (1,305 psi). The ignition voltage is greater than 10 volts. The EBCM performs a hydraulic system check every third ignition cycle. Brake pedal was depressed.
Cause and Solution
This diagnostic detects if the left front circuit is blocked by actively applying pressure and monitoring the accumulator pressure change. The pressure change of the accumulator indicates the value of fluid used which is then compared to expected fluid used during a brake apply. Too little fluid usage indicates a blocked circuit.
Video Guide
Diagnostic Info
- DTC Code: P0385
- Brand: Lexus