What are the common causes of C0019?

An open or short in the left rear outlet control valve circuit. A failed left rear outlet control valve. Corrosion or damage at the left rear outlet valve connector. Low or contaminated brake fluid. A fault inside the ABS control module.

Check brake fluid level and condition, top off or replace if needed. Inspect the left rear outlet control valve circuit for opens, shorts and corrosion. Test the left rear outlet control valve for proper operation. Replace the left rear outlet control valve if it fails the test. Test the ABS control module if the valve and wiring check out. Clear the code and retest the ABS system.

C0019

Left Rear Outlet Control

System: Chassis control (C code)
Lamp: Chassis Warning Light
Category: Chassis

What it means

C0019 means Left Rear Outlet Control.

Check these first

An open or short in the left rear outlet control valve circuit
A failed left rear outlet control valve
Corrosion or damage at the left rear outlet valve connector
Low or contaminated brake fluid
A fault inside the ABS control module

What to do next

Check brake fluid level and condition, top off or replace if needed
Inspect the left rear outlet control valve circuit for opens, shorts and corrosion
Test the left rear outlet control valve for proper operation
Replace the left rear outlet control valve if it fails the test
Test the ABS control module if the valve and wiring check out
Clear the code and retest the ABS system

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.