OBD Guide

C055F

BSCM/EBBC Hydraulic Unit Performance

C055F is an OBD-II diagnostic trouble code meaning: BSCM/EBBC Hydraulic Unit Performance. Common causes: hydraulic pump malfunction, valve jamming in the block. Estimated repair cost: $167โ€“556.

Severity
๐Ÿ”ด High
Can you drive?
Do not drive โ€” repair immediately
Approx. repair cost
$167โ€“556 (est.)

Symptoms

  • ESC/ESP indicator is on
  • Loss of effectiveness of the stabilization system
  • Unusual noises when operating the hydraulic unit
  • Poor handling on slippery roads

Causes

  • Hydraulic pump malfunction
  • Valve jamming in the block
  • Open or shorted wiring harness
  • Low brake fluid level
  • Software failure in the BSCM/EBBC control unit

How to Fix

  1. Check the level and condition of the brake fluid
  2. Diagnose the wiring harness and connectors of the hydraulic unit
  3. Carry out computer diagnostics of the stabilization system
  4. Check the operation of the hydraulic pump and valves
  5. If necessary, replace the hydraulic unit or its components
  6. Update BSCM/EBBC control unit software

Related codes

Error C055F by Vehicle Brand

FAQ

What does the C055F code mean?

C055F is an OBD-II diagnostic trouble code that indicates: BSCM/EBBC Hydraulic Unit Performance

What causes a C055F error code?

The most common causes of C055F include: Hydraulic pump malfunction; Valve jamming in the block; Open or shorted wiring harness; Low brake fluid level.

How do I fix a C055F diagnostic trouble code?

To fix C055F: Check the level and condition of the brake fluid. Diagnose the wiring harness and connectors of the hydraulic unit. Carry out computer diagnostics of the stabilization system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C055F?

Do not drive โ€” repair immediately

How much does it cost to fix C055F?

The estimated repair cost for C055F is $167โ€“556. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version ยท NationStat