Complete Guide: 2009 Toyota / Lexus GS ABS Actuator | OEM 079400-5471 / 89540-30B30 | Brake Control Module

Complete Guide to the 2009 Toyota / Lexus GS ABS Actuator OEM 079400-5471 / 89540-30B30

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If you're searching for accurate information on the 2009 Toyota GS / Lexus GS ABS Actuator (OEM 079400-5471 / 89540-30B30), this guide explains everything you need to know—including features, symptoms, compatibility, fitment, programming requirements, and expert buying tips.

What Is the ABS Actuator (Brake Control Module)?

The ABS Actuator, also known as the Brake Control Module, is responsible for:

• Modulating brake pressure during sudden stops

• Preventing wheel lock-up

• Maintaining traction and stability

• Communicating with the ECU, wheel speed sensors, and VSC system

OEM reference numbers for this model:

• 079400-5471 (Denso)

• 89540-30B30 (Toyota / Lexus Genuine Part)

This unit is widely used in the 2009 Toyota/Lexus GS platform with advanced VSC and ABS integration.

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Common Symptoms of a Faulty ABS Actuator

If the actuator fails, the vehicle may show:

1. ABS, VSC, Brake Warning Lights

A common indicator that the control module or internal pump system is faulty.

2. Pulsating brake pedal or hard pedal

Caused by incorrect hydraulic pressure regulation.

3. Traction or stability control not working

The module no longer communicates with wheel speed sensors.

4. Longer stopping distance

ABS does not activate properly.

5. Brake fluid pressure errors

Often recorded in the vehicle diagnostic system.

Do You Need Programming After Replacement?

Yes—in most cases, programming / calibration is required.

Programming Steps May Include:

• ABS module initialization

• Zero-point calibration for steering and yaw sensors

• Bleeding the ABS actuator using a scan tool

• VIN coding depending on region

Toyota Techstream or high-level tools like Launch, Autel, or Snap-On can perform programming.

Buying an already plug-and-play pre-programmed unit from our store may reduce programming requirements.

OEM Part Numbers

Compatibility Table

Compatible Vehicles

If unsure, send us your VIN / part number, and AutoMan Spare Parts will confirm compatibility.

Why Buy From AutoManSpareParts.com?

1. Genuine OEM Units Only

No fake, aftermarket, or repaired units—100% authentic.

2. Malaysia’s No.1 ECU Supplier

Thousands of ECUs, TCMs, ABS modules, hybrid control units in stock.

3. Cheapest Global Prices

Wholesale stock, bulk imports, and direct sourcing.

4. Fast Worldwide Shipping

We deliver to:

• USA

• Mexico

• Europe

• Middle East

• Australia

• Asia

5. Professional Testing & Warranty

All modules undergo diagnostic testing before shipping.

Installation Tips

• Perform proper brake bleeding using a scan tool

• Clear all ABS/VSC codes after installation

• Check brake fluid level and condition

• Ensure wheel speed sensors are functional

Frequently Asked Questions (FAQ)

1. Does the 2009 Lexus GS ABS Actuator need programming?

Yes, initialization and calibration are typically required after installation.

2. Can I install a used ABS actuator?

Yes, as long as it matches 079400-5471 / 89540-30B30 and passes testing.

3. How long does the actuator last?

Generally 10–15 years, depending on driving conditions.

4. Will a faulty ABS module affect normal braking?

Normal braking may still work, but ABS and stability control will fail, increasing accident risk.

5. Do you ship worldwide?

Yes. AutoMan Spare Parts ships globally with fast, reliable delivery.

TL;DR

• The 2009 Lexus/Toyota GS ABS Actuator uses OEM part numbers 079400-5471 / 89540-30B30.

• Controls ABS, traction, and stability systems.

• Requires programming/calibration after replacement.

• Symptoms include warning lights, poor braking, and traction control issues.

• AutoManSpareParts.com offers genuine OEM units at the lowest prices with global fast shipping.