OBD Guide

C1344

Malfunction In Hydraulic System Rear Left

C1344 is an OBD-II diagnostic trouble code meaning: Malfunction In Hydraulic System Rear Left. Common causes: brake fluid leak, malfunction of the hydraulic control unit (abs/esc). Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • ABS/ESC lamp comes on
  • Reduced braking performance
  • Uneven brake pad wear
  • Brake fluid leakage

Causes

  • Brake fluid leak
  • Malfunction of the hydraulic control unit (ABS/ESC)
  • Damage to hydraulic lines
  • Malfunction of pressure sensors
  • Wiring Harness Problems

How to Fix

  1. Check the brake fluid level
  2. Inspect hydraulic lines for leaks
  3. Check the condition of the brake cylinders
  4. Scan the system for other errors
  5. Check connectors and wiring harness
  6. Replace faulty components

Related codes

FAQ

What does the C1344 code mean?

C1344 is an OBD-II diagnostic trouble code that indicates: Malfunction In Hydraulic System Rear Left

What causes a C1344 error code?

The most common causes of C1344 include: Brake fluid leak; Malfunction of the hydraulic control unit (ABS/ESC); Damage to hydraulic lines; Malfunction of pressure sensors.

How do I fix a C1344 diagnostic trouble code?

To fix C1344: Check the brake fluid level. Inspect hydraulic lines for leaks. Check the condition of the brake cylinders. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1344?

Limited driving only, diagnose soon

How much does it cost to fix C1344?

The estimated repair cost for C1344 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat