AutoCodes – Infiniti – C1189 Infiniti

C1189 Infiniti Code - ABS Brake Booster

Quick Answer

The Active Brake Booster consists of a vacuum booster, an active booster control group, and a delta stroke sensor. Common causes include Faulty Active Booster (Power Brake Booster), Faulty ABS Control Unit/Actuator, ABS Control Unit/Actuator harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: C1189 Infiniti indicates ABS Brake Booster.
Common causes: Common causes include Faulty Active Booster (Power Brake Booster), Faulty ABS Control Unit/Actuator, ABS Control Unit/Actuator harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 2,463

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 05, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1189 Infiniti Description

The Active Brake Booster consists of a vacuum booster, an active booster control group, and a delta stroke sensor. If a brake booster system malfunction occurs due to loss of vacuum, the delta stroke sensor will signal the ABS actuator and electric unit (control unit) that a booster malfunction has occurred. The active booster then applies supplemental force to the master cylinder relative to the amount of force exerted on the brake pedal. The Diagnostic Trouble Code (DTC) will be set when the brake booster is defective or malfunctioning.

OBDII Code C1189 Infiniti - ABS Brake Booster - AutoCodes.com — C1189 Infiniti Code - ABS Brake Booster

What does this mean?

What are the Possible Causes of the DTC C1189 Infiniti?

Faulty Active Booster (Power Brake Booster)
Faulty ABS Control Unit/Actuator
ABS Control Unit/Actuator harness is open or shorted
ABS Control Unit/Actuator circuit poor electrical connection

How to Fix the DTC C1189 Infiniti?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1189 Infiniti code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C1189 Infiniti code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1189 Infiniti Code

1. What are the common symptoms of OBDII code C1189 in an Infiniti related to the ABS brake booster?

The common symptoms include a spongy brake pedal, increased brake pedal effort, and potential loss of brake power assist.

2. What are the possible causes of OBDII code C1189 in an Infiniti related to the ABS brake booster?

Potential causes include a faulty brake booster, damaged brake booster check valve, or issues with the ABS system.

3. How can I diagnose the OBDII code C1189 in an Infiniti related to the ABS brake booster?

Diagnosis typically involves using a professional OBDII scanner to retrieve the code, inspecting the brake booster and associated components for damage, and performing a brake system pressure test.

4. Can I continue driving my Infiniti with OBDII code C1189 related to the ABS brake booster?

It is not recommended to drive the vehicle with this issue as it can compromise braking performance and safety. Prompt attention and repair are advised.

5. How can I repair OBDII code C1189 in an Infiniti related to the ABS brake booster?

Repair options may include replacing the brake booster, repairing or replacing the check valve, and addressing any underlying ABS system issues identified during diagnosis.

6. Are there any DIY tips for addressing OBDII code C1189 in an Infiniti related to the ABS brake booster?

While some basic inspections can be done, it is recommended to have a professional mechanic handle the diagnosis and repair to ensure the issue is properly resolved.

7. How much does it typically cost to repair OBDII code C1189 in an Infiniti related to the ABS brake booster?

Costs can vary depending on the extent of the issue, parts needed for repair, and labor rates. It is advisable to obtain quotes from reputable repair shops.

8. What are the potential risks of ignoring OBDII code C1189 related to the ABS brake booster in an Infiniti?

Ignoring this code can lead to brake failure, compromised braking performance, and potential safety hazards while driving.

9. Is OBDII code C1189 related to the ABS brake booster a common issue in Infiniti vehicles?

While not extremely common, issues with the ABS brake booster can occur in some Infiniti models and should be addressed promptly to ensure safe driving.

10. Can a regular mechanic repair OBDII code C1189 in an Infiniti related to the ABS brake booster, or should I visit a dealership?

A skilled mechanic with experience in ABS systems and brake boosters should be able to diagnose and repair this issue, whether at a dealership or an independent repair shop.