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C1187 Infiniti Code - ABS Differential Lock Controller

Quick Answer

The C1187 code in an Infiniti vehicle refers to an issue with the ABS (Anti-lock Braking System) Differential Lock Controller. Common causes include Faulty ABS Differential Lock Controller, Damaged wheel speed sensors, Wiring or connection issues in the ABS system. 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
C1187 Infiniti indicates ABS Differential Lock Controller.
Common causes
Common causes include Faulty ABS Differential Lock Controller, Damaged wheel speed sensors, Wiring or connection issues in the ABS system.
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 13, 2024
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Code C1187 Infiniti Description

The C1187 code in an Infiniti vehicle refers to an issue with the ABS (Anti-lock Braking System) Differential Lock Controller. This component is responsible for controlling the differential lock system, which helps to distribute power evenly between the wheels to prevent slippage and improve traction. When this controller malfunctions, it can lead to problems with the vehicle's stability and handling, especially in slippery or uneven road conditions.

OBDII Code C1187 Infiniti - ABS Differential Lock Controller
C1187 Infiniti Code - ABS Differential Lock Controller

Common Causes of C1187 Infiniti

  1. Faulty ABS Differential Lock Controller
  2. Damaged wheel speed sensors
  3. Wiring or connection issues in the ABS system
  4. Corrosion or debris affecting sensor performance
  5. Electronic control unit (ECU) malfunction

Symptoms of C1187 Infiniti

  1. Illuminated ABS warning light on the dashboard
  2. Traction control system engaging unexpectedly
  3. Difficulty maintaining traction on slippery surfaces
  4. Uneven power distribution between wheels
  5. Grinding or clicking noises from the differential area

How to Fix C1187 Infiniti

  1. Diagnose the issue using a professional OBD-II scanner to confirm the C1187 code and pinpoint the exact cause.
  2. Inspect the ABS Differential Lock Controller, wheel speed sensors, and wiring for any visible damage or corrosion.
  3. Replace the faulty ABS Differential Lock Controller or damaged components as needed.
  4. Clear the diagnostic trouble code from the vehicle's ECU and perform a test drive to ensure the issue has been resolved.
  5. Reset the ABS system and perform a calibration procedure to ensure proper functionality.

Cost to Fix C1187 Infiniti

The typical repair costs for addressing the C1187 code in an Infiniti vehicle can range from $200 to $600, depending on the extent of the damage and the cost of replacement parts. This estimate includes the price of the ABS Differential Lock Controller, wheel speed sensors, and any additional labor charges. It's important to note that specific diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It's recommended to obtain quotes from multiple shops to compare prices and ensure a fair deal.

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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 C1187 Infiniti Code

1. What does OBDII code C1187 in an Infiniti refer to?

The OBDII code C1187 in an Infiniti specifically relates to the ABS Differential Lock Controller.

2. What are the common symptoms of OBDII code C1187 in an Infiniti?

Common symptoms of OBDII code C1187 in an Infiniti may include the ABS warning light illuminating on the dashboard, loss of traction control functionality, and possible issues with the vehicle's stability control system.

3. What are the potential causes of OBDII code C1187 in an Infiniti?

The OBDII code C1187 in an Infiniti can be triggered by issues such as a faulty ABS differential lock controller, damaged wiring or connectors in the ABS system, or a malfunctioning wheel speed sensor.

4. How can I diagnose OBDII code C1187 in an Infiniti?

Diagnosing OBDII code C1187 in an Infiniti typically involves using a diagnostic scan tool to retrieve the code, inspecting the ABS system components for damage or wear, and testing the wheel speed sensors for proper functionality.

5. Can I continue driving my Infiniti with OBDII code C1187?

It is not recommended to drive your Infiniti with OBDII code C1187 present, as it may affect the vehicle's ABS and stability control systems, potentially compromising safety and performance.

6. How can I repair OBDII code C1187 in an Infiniti?

Repairing OBDII code C1187 in an Infiniti may involve replacing the faulty ABS differential lock controller, repairing damaged wiring or connectors, or addressing any issues with the wheel speed sensors as necessary.

7. Are there any DIY tips for fixing OBDII code C1187 in an Infiniti?

While some basic diagnostic steps can be taken by DIY enthusiasts, it is recommended to consult a professional mechanic or dealership for accurate diagnosis and repair of OBDII code C1187 in an Infiniti due to the complexity of ABS systems.

8. How much does it typically cost to repair OBDII code C1187 in an Infiniti?

The cost of repairing OBDII code C1187 in an Infiniti can vary depending on the specific issue causing the code, the labor rates of the repair facility, and the cost of any replacement parts needed.

9. Can OBDII code C1187 in an Infiniti be cleared/reset without fixing the underlying issue?

Clearing or resetting OBDII code C1187 in an Infiniti without addressing the underlying issue is not recommended, as the code is likely to reappear once the ABS system detects the fault during operation.

10. Is OBDII code C1187 specific to certain Infiniti models?

OBDII code C1187 related to the ABS Differential Lock Controller can be specific to certain Infiniti models, so it is important to consult the vehicle's specific diagnostic manual for accurate information and repair procedures.

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