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C1140 Infiniti Code - ABS Actuator Relay

Quick Answer

The C1140 Infiniti code relates to the ABS (Antilock Brake System) Actuator Relay. Common causes include Faulty ABS Actuator Relay, Wiring issues or electrical faults, ABS control module failure. 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
C1140 Infiniti indicates ABS Actuator Relay.
Common causes
Common causes include Faulty ABS Actuator Relay, Wiring issues or electrical faults, ABS control module failure.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code C1140 Infiniti Description

The C1140 Infiniti code relates to the ABS (Antilock Brake System) Actuator Relay. This component is responsible for controlling the operation of the ABS system, which helps to prevent the wheels from locking up during braking. When this code appears, it indicates a malfunction in the relay, which can have significant implications for the vehicle's safety and performance.

OBDII Code C1140 Infiniti - ABS Actuator Relay
C1140 Infiniti Code - ABS Actuator Relay

Common Causes of C1140 Infiniti

  1. Faulty ABS Actuator Relay
  2. Wiring issues or electrical faults
  3. ABS control module failure
  4. Corrosion or damage to ABS components
  5. Poor connection or loose wiring

Symptoms of C1140 Infiniti

  1. Illuminated ABS warning light on the dashboard
  2. ABS system not engaging during braking
  3. Increased stopping distance during braking
  4. ABS pump constantly running
  5. Difficulty maintaining control during braking on slippery surfaces

How to Fix C1140 Infiniti

  1. Diagnose the specific cause of the C1140 code using a professional diagnostic scan tool.
  2. Inspect the ABS Actuator Relay, wiring, and connections for any signs of damage or corrosion.
  3. Replace the faulty ABS Actuator Relay if necessary, ensuring proper installation and connection.
  4. Test the ABS system to verify proper functionality and clear the code from the vehicle's computer.
  5. Perform a road test to confirm that the ABS system is operating correctly and that the issue has been resolved.

Cost to Fix C1140 Infiniti

The cost of repairing the ABS Actuator Relay can vary depending on the extent of the damage, the specific components that need to be replaced, and the labor rates at the auto repair shop. On average, the repair cost for this issue can range from $200 to $500, including parts and labor. It is recommended to obtain quotes from multiple repair shops to compare prices and ensure a competitive rate. Keep in mind that additional diagnostic time or other related repairs may affect the final cost.

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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 C1140 Infiniti Code

1. What are common symptoms of OBDII code C1140 in an Infiniti related to the ABS Actuator Relay?

The common symptoms include the ABS warning light being illuminated on the dashboard, potential loss of ABS functionality, and possible issues with the vehicle's braking system.

2. What could cause OBDII code C1140 in an Infiniti related to the ABS Actuator Relay?

The code C1140 typically indicates a malfunction in the ABS actuator relay circuit, which could be caused by a faulty relay, damaged wiring, or a problem with the ABS actuator itself.

3. How can I diagnose the OBDII code C1140 in my Infiniti related to the ABS Actuator Relay?

Diagnosing the code C1140 usually involves using a diagnostic scanner to retrieve the specific fault code, inspecting the ABS actuator relay and related components for any visible damage, and conducting electrical tests to pinpoint the issue.

4. Is it safe to continue driving my Infiniti with OBDII code C1140 related to the ABS Actuator Relay illuminated?

It is not recommended to drive your vehicle with the ABS warning light on, as it indicates potential issues with the braking system. It's best to have the problem diagnosed and repaired as soon as possible to ensure your safety on the road.

5. Can I repair OBDII code C1140 related to the ABS Actuator Relay in my Infiniti myself?

Repairing OBDII code C1140 may require advanced knowledge and tools, so it's advisable to have a professional mechanic or technician address the issue. Attempting to fix the problem without proper expertise could result in further damage.

6. How much does it typically cost to repair OBDII code C1140 related to the ABS Actuator Relay in an Infiniti?

The cost of repairing OBDII code C1140 can vary depending on the exact cause of the issue, labor rates, and parts needed. It's recommended to obtain estimates from reputable repair shops or dealerships.

7. Can a faulty ABS Actuator Relay cause other problems in my Infiniti besides triggering OBDII code C1140?

A faulty ABS Actuator Relay can potentially cause other issues such as erratic ABS system behavior, poor braking performance, and in some cases, trigger additional fault codes related to the braking system.

8. Are there any preventive measures to avoid encountering OBDII code C1140 related to the ABS Actuator Relay in my Infiniti?

Regular maintenance, including inspecting the ABS system components during routine service intervals, can help catch potential issues early and prevent the occurrence of OBDII code C1140 related to the ABS Actuator Relay.

9. How long does it typically take to repair OBDII code C1140 related to the ABS Actuator Relay in an Infiniti?

The repair time for OBDII code C1140 can vary based on the exact cause of the problem, availability of parts, and the technician's expertise. It's advisable to inquire about the estimated repair time with your chosen repair facility.

10. Can resetting the OBDII system clear the code C1140 related to the ABS Actuator Relay in my Infiniti?

While resetting the OBDII system may temporarily clear the code C1140, it won't fix the underlying issue causing the fault. It's essential to diagnose and repair the problem to prevent the code from reoccurring.

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