What Does This Error Mean?

The Mitsubishi ABS warning light means the anti-lock braking system has detected a fault and disabled itself. Normal braking still works, but ABS will not prevent wheel lockup in emergency stops. The most common cause is a failed wheel speed sensor — an OBD-II scanner identifies which one.

Affected Models

Mitsubishi Outlander
Mitsubishi Eclipse Cross
Mitsubishi ASX
Mitsubishi L200
Mitsubishi Pajero
Mitsubishi Galant
Mitsubishi Mirage

Common Causes

Wheel speed sensor failed or dirty — the most common cause
Tone ring on wheel hub cracked or corroded
ABS modulator unit fault
ABS fuse blown
Low brake fluid triggering combined warnings

How to Fix It

Read the ABS fault code.

Plug an OBD-II scanner into the port under the dashboard. Mitsubishi ABS codes appear as chassis C-codes — common codes include C1200–C1240 range (wheel speed sensor faults). The code identifies exactly which wheel's sensor has failed.
Check if the ASC warning is also on.

Mitsubishi's Active Stability Control (ASC) and traction control systems share wheel speed sensors with ABS. If the ABS and ASC lights are both on, a failed wheel speed sensor is almost certainly the cause. Read the fault code to confirm which wheel.
Inspect the wheel speed sensors.

Mitsubishi wheel speed sensors sit at each wheel hub — accessible after removing the wheel. Inspect the sensor body and wiring harness for corrosion, cracked insulation, or damage from road debris. Cleaning a dirty sensor tip with brake cleaner sometimes clears the fault without replacement.
Check the ABS fuse.

Open the engine bay fuse box and locate the ABS fuse — typically 30A. Replace a blown fuse with the same rating. A repeatedly blowing fuse indicates a wiring short in the ABS circuit.
Check brake fluid level.

Confirm the brake fluid reservoir is between MIN and MAX. Low brake fluid on Mitsubishi models can trigger both the ABS and brake warning lights together. If the fluid is low, check for worn pads or a brake fluid leak before topping up.

When to Call a Professional

If both the ABS and ASC (Active Stability Control) lights are on, all stability systems are disabled. Have the fault code read to identify the specific failing component.