Troubleshooting Mitsubishi ABS Light Service Required

In this guide, you will learn about common problems that cause Mitsubishi ABS light to stay on and how to troubleshoot the ABS light yourself. 

In most cases, Mitsubishi ABS light comes on due to a defective or dirty ABS wheel speed sensor. You will learn how to use an ABS scanner to find out which sensor is faulty. 

What does ABS light mean on Mitsubishi?

Mitsubishi abs warning light on

If you notice that the ABS light is staying on, it means that the Anti-lock Brake System (ABS) has detected a problem and is no longer working properly.

When your ABS module is disabled your vehicle may skid, take longer to come to a complete stop under hard braking situations. The wheels of your vehicle may lock up and your vehicle may skid if you brake too hard.

Traction control and stability control light

  • You may see those warning lights come on as well. These systems depend on the ABS system to function so they will be disabled when there is a problem with the ABS system.

Symptoms

  • ABS light on
  • Traction control light staying on
  • 4WD light staying on
  • ABS Service Required warning message
  • Traction control, Stability, 4WD depend on the ABS module to function properly. These lights may come on in addition to the ABS light.
  • ABS service required warning on dashboard

Possible Problems

  • Faulty ABS wheel speed sensor
  • Bad clock spring
  • Defective ABS module or pump
  • Damaged wire harness 
  • Bad or corroded connector
  • Blown fuse
  • Low battery voltage

To find out why the ABS light is on, read the fault codes as outlined in the next section. 

How to Diagnose Mitsubishi ABS problems

To find out why your ABS service required warning is coming up you will need a Mitsubishi ABS scanner that can read fault codes from the ABS module. Note, that generic OBD2 scanners cannot read ABS fault codes.

The procedure for reading and clearing Mitsubishi ABS light is very simple.

  1. Plugin the scanner into the OBD2 port under the dashboard.Mitsubishi OBD2 port
  2. Turn on the ignition. Don't start the engine. ignition on
  3. Allow the scanner to power up and press scan or enter, depending on the scanner.troubleshoot Mitsubishi abs light
  4. Select your Mitsubishi model. Go to the ABS control module.
  5. Scroll down to Read Codes and press enter.

These instructions may vary slightly depending on the scanner that you are using.

Common Causes

Wheel speed sensor

dirty abs sensor

A common problem that causes Mitsubishi ABS light to come on. In less than 30 minutes, you can remove the ABS sensor and clean it. The problem is that without reading the fault codes, you will know which ABS sensor is dirty.

Read the fault codes with a Mitsubishi scanner to find out which sensor is the issue. If you don't have a scanner, you will have to remove all the sensors and clean them.

Follow this guide to learn how to replace the Mitsubishi ABS sensor if you determine one is defective.

 

Blown ABS fuse or defective ABS relay

Mitsubishi fuses

Check the fuse for the ABS in the main fuse box in the engine bay. If the ABS fuse keeps blowing it indicates a problem with the ABS pump. Replace the ABS relay or swap it with one that you know works.

 

Defective ABS module

Bad abs module triggers abs warning light on Mitsubishi lancer outlander eclipse galant mirage

The ABS module or pump itself may fail. It will need to be replaced or rebuilt. Typically Mitsubishi ABS pump doesn't need to be coded, but the module may need programming. 

 

Vehicle System
Brakes Mitsubishi
Troubleshooting Mitsubishi ABS Light Service Required In this guide, you will learn about common problems that cause Mitsubishi ABS light to stay on and how to troubleshoot the ABS light yourself.