OBD Guide

C104B

Abnormality In Front Left Wheel Inlet Valve System

C104B is an OBD-II diagnostic trouble code meaning: Abnormality In Front Left Wheel Inlet Valve System. Common causes: abs intake valve malfunction, problems with the abs valve body. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • ABS/ESP indicator is on
  • Reduced braking performance
  • Incorrect operation of the stabilization system

Causes

  • ABS intake valve malfunction
  • Problems with the ABS valve body
  • Open or shorted wiring harness
  • Contact corrosion
  • ABS module malfunction

How to Fix

  1. Diagnostics of the ABS system using a scanner
  2. Checking valve resistance
  3. Inspect the wiring harness and contacts
  4. Replacing a faulty valve or valve body
  5. Programming the ABS module if necessary

Related codes

FAQ

What does the C104B code mean?

C104B is an OBD-II diagnostic trouble code that indicates: Abnormality In Front Left Wheel Inlet Valve System

What causes a C104B error code?

The most common causes of C104B include: ABS intake valve malfunction; Problems with the ABS valve body; Open or shorted wiring harness; Contact corrosion.

How do I fix a C104B diagnostic trouble code?

To fix C104B: Diagnostics of the ABS system using a scanner. Checking valve resistance. Inspect the wiring harness and contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C104B?

Do not drive — repair immediately

How much does it cost to fix C104B?

The estimated repair cost for C104B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat