How to Install an ABS Relay in a Hyundai Santa Fe

Written by ehow cars editor
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An ABS warning light on the dash of your Hyundai Santa Fe means that you need to change the ABS relay. Driving your vehicle while the ABS warning light is dangerous as the ABS relay controls the entire anti-lock brake system. If the ABS system is malfunctioning, you may find it difficult to stop your vehicle.

Skill level:
Easy

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Things you need

  • Wrench
  • Phillips screwdriver
  • ABS relay

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Instructions

  1. 1

    Park the Hyundai Santa Fe and set the parking brake. Open the hood. Secure it using the safety bar. Disconnect the black negative battery cable by loosening the nut on the clamp around the battery post using an adjustable wrench. Pull it up and set it away from the battery.

  2. 2

    Locate the engine relay center located between the battery and the firewall. Release the cover by lifting up on the clips on either side of the cover. Set the cover aside. Look for the relay labeled ABS. On each side of the relay, there is a screw. Remove these screws using a Phillips screwdriver. Pull up on the relay to remove it.

  3. 3

    Disconnect the wiring harness on the bottom of the relay by pressing the buttons on the side of the harness. Gently pull down on the harness while you are pressing the buttons.

  4. 4

    Connect the wiring harness into the bottom of the new ABS relay. Place the new ABS relay in the place from which you just removed the malfunctioning relay. Secure it by replacing the mounting fasteners. Tighten them with the screwdriver. Replace the cover and secure it with the clips.

  5. 5

    Replace the negative battery cable. Tighten the nut on the clamp. Close the hood. Start the engine. Look for the ABS warning light. If it remains off, test drive your vehicle by driving slowly and trying to stop. If the ABS warning light comes on, you should take it to a mechanic to service the system.

Tips and warnings

  • Place the screws in a safe place as you remove them. You will need them to reinstall the components.

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