AutoCodes – Generic – C1187

C1187 Code - ABS Differential Lock Controller

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the ABS Differential Lock Controller. Common causes include Faulty ABS Differential Lock Controller, ABS Differential Lock Controller harness is open or shorted, ABS Differential Lock Controller circuit poor electrical connection. 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 indicates ABS Differential Lock Controller.
Common causes: Common causes include Faulty ABS Differential Lock Controller, ABS Differential Lock Controller harness is open or shorted, ABS Differential Lock Controller circuit poor electrical connection.
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 29,590

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 Aug 20, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1187 Description

The Anti-Lock Brake System (ABS) Module monitors the ABS Differential Lock Controller. The ABS Module sets the OBDII code when the ABS Differential Lock Controller is not to factory specifications.

OBDII Code C1187 - ABS Differential Lock Controller - AutoCodes.com — C1187 Code - ABS Differential Lock Controller

What does this mean?

What are the Possible Causes of the DTC C1187?

Faulty ABS Differential Lock Controller
ABS Differential Lock Controller harness is open or shorted
ABS Differential Lock Controller circuit poor electrical connection

How to Fix the DTC C1187?

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 C1187 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 C1187 code?

Need more information on how to fix the C1187 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1187 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1187 Infiniti — ABS Differential Lock Controller
C1187 Nissan — ABS Differential Lock Controller

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 Code

1. What are the common symptoms of OBDII code C1187 (ABS Differential Lock Controller)?

- Common symptoms include the ABS warning light illuminating on the dashboard, loss of stability control, and potential difficulty braking in certain conditions.

2. What are the possible causes of OBDII code C1187?

- Possible causes include a faulty ABS differential lock controller, damaged wiring or connectors in the ABS system, or issues with the wheel speed sensors.

3. How can I diagnose OBDII code C1187?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, checking for any related codes, inspecting the ABS system components, and performing a visual inspection of the wiring and connectors.

4. Can driving with OBDII code C1187 cause further damage to my vehicle?

- Driving with this code may compromise the effectiveness of the ABS system and stability control, potentially leading to safety issues in certain driving conditions. It is recommended to address the issue promptly.

5. What are some repair tips for fixing OBDII code C1187?

- Repair tips may include checking and replacing damaged wiring or connectors, testing and replacing faulty ABS differential lock controller, and ensuring proper installation and calibration of new components.

6. Is it safe to continue driving my vehicle with OBDII code C1187 if the symptoms are not severe?

- It is not recommended to drive the vehicle with unresolved ABS-related issues, as it can affect the overall safety and performance of the vehicle, especially in emergency braking situations.

7. Can OBDII code C1187 be a false alarm or intermittent issue?

- While intermittent issues can occur, it is essential to thoroughly diagnose and address the root cause of the code to prevent potential safety hazards and ensure the proper functioning of the ABS system.

8. Are there any DIY fixes for OBDII code C1187, or should I seek professional help?

- Depending on your automotive repair skills and knowledge, you may attempt basic troubleshooting such as checking connectors and wiring. However, complex issues with the ABS system should be addressed by a qualified professional.

9. How much does it typically cost to repair OBDII code C1187?

- The cost of repair can vary depending on the specific cause of the code, the extent of the damage, and the labor rates in your area. It is advisable to obtain quotes from reputable mechanics or repair shops.

10. Can OBDII code C1187 be triggered by other underlying issues in the vehicle?

- While this code is typically related to the ABS differential lock controller, underlying issues such as wheel speed sensor malfunctions or electrical faults in the ABS system can also trigger it.