All codes/C0012

C0012

Left Front Hydraulic Release Too Long

High severity

Hydraulic release on left front wheel circuit took longer than expected.

Hydraulic release on left front wheel circuit took longer than expected.

Common causes

  • Outlet valve sluggish or hydraulic restriction

    One of the most commonly reported causes for this code — check this first.

    high

    Typical part cost: $440-2750

  • See all causes + fix costs

    Create a free Wrenchify account to unlock the rest for C0012.

    Unlock causes

    Free forever · No credit card

First things to check

  1. 1Confirm the code with a scan tool and check for additional related codes.
  2. 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

Get the full step-by-step diagnosis

Create a free Wrenchify account to unlock the rest for C0012.

Unlock diagnosis

Free forever · No credit card

Related codes

See related trouble codes

Create a free Wrenchify account to unlock the rest for C0012.

Unlock related codes

Free forever · No credit card

Frequently asked questions

What does C0012 mean?

C0012 means "Left Front Hydraulic Release Too Long". It is a generic OBD-II code that points to a fault in the chassis.

What are the most common causes of C0012?

outlet valve sluggish or hydraulic restriction — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.

Get the full C0012 diagnosis for your vehicle

Year, make, model + step-by-step repair help — free plan included.

Diagnose C0012