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C1102 Infiniti Code - Rear Left Sensor 1

Quick Answer

The C1102 Infiniti code specifically refers to an issue with the Rear Left Sensor 1 in the vehicle's braking system. Common causes include Faulty Rear Left Sensor 1, Damaged wiring or connectors, Corrosion or debris affecting sensor operation. 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
C1102 Infiniti indicates Rear Left Sensor 1.
Common causes
Common causes include Faulty Rear Left Sensor 1, Damaged wiring or connectors, Corrosion or debris affecting sensor operation.
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 14, 2024
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Code C1102 Infiniti Description

The C1102 Infiniti code specifically refers to an issue with the Rear Left Sensor 1 in the vehicle's braking system. This sensor is responsible for monitoring the speed and rotation of the rear left wheel. When this sensor detects any abnormalities or malfunctions, it triggers the C1102 code, indicating a problem that needs to be addressed.

OBDII Code C1102 Infiniti - Rear Left Sensor 1
C1102 Infiniti Code - Rear Left Sensor 1

Common Causes of C1102 Infiniti

  1. Faulty Rear Left Sensor 1
  2. Damaged wiring or connectors
  3. Corrosion or debris affecting sensor operation
  4. Sensor misalignment due to improper installation
  5. Electronic control unit (ECU) communication issues

Symptoms of C1102 Infiniti

  1. ABS warning light illuminated on the dashboard
  2. Traction control system malfunction
  3. Increased stopping distance when braking
  4. Uneven braking pressure between wheels
  5. Grinding or scraping noise during braking

How to Fix C1102 Infiniti

  1. Begin by conducting a visual inspection of the sensor, wiring, and connectors for any visible damage or corrosion.
  2. Use a diagnostic scan tool to retrieve the specific error codes and data related to the Rear Left Sensor 1.
  3. Test the sensor's resistance and output signal to determine if it is functioning within the manufacturer's specifications.
  4. If the sensor is faulty, replace it with a new OEM or high-quality aftermarket sensor.
  5. Clear the error codes from the vehicle's computer system and perform a test drive to ensure the issue has been resolved.

Cost to Fix C1102 Infiniti

The typical repair costs for addressing the C1102 Infiniti code can vary depending on the specific components that need to be replaced and the labor involved. In general, replacing a rear wheel speed sensor can cost between $100 and $300 for parts, with additional labor costs ranging from $100 to $200. However, it is important to note that these estimates are approximate and can vary based on factors such as location, vehicle make and model, and the shop's labor rates. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate tailored to your specific situation.

What does this mean?

Tech Notes for C1102 Infiniti

There is a factory service bulletin for all Infiniti models to help diagnose the C1102 code:



2007-2013 All Infiniti Models:

2007-2013 All Infiniti Models Factory Service Bulletin OBDII Code C1102

When is the Code Detected?

Circuit of rear Left wheel sensor (4WD) or rear sensor (2WD) is open, shorted or sensor voltage is unusual

Need more information about the C1102 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 C1102 Infiniti Code

1. What are the common symptoms of OBDII code C1102 in an Infiniti related to the Rear Left Sensor 1?

The common symptoms include the ABS warning light illuminating on the dashboard, potential loss of ABS functionality, and possible traction control issues.

2. What are the possible causes of OBDII code C1102 in an Infiniti indicating an issue with Rear Left Sensor 1?

The code C1102 typically points to a faulty rear left wheel speed sensor, damaged sensor wiring or connector, or a malfunction within the ABS control module.

3. How can I diagnose the root cause of OBDII code C1102 related to Rear Left Sensor 1 in my Infiniti?

You can start by visually inspecting the sensor and its wiring for any visible damage. Using a diagnostic scan tool to read the code and perform further ABS system tests can help pinpoint the exact issue.

4. Is it safe to continue driving my Infiniti with OBDII code C1102 for the Rear Left Sensor 1 active?

It is not recommended to drive the vehicle with an active ABS code, as it may compromise braking performance and stability control. Prompt diagnosis and repair are advised.

5. Can I repair OBDII code C1102 related to the Rear Left Sensor 1 in my Infiniti myself?

If you have the necessary tools and expertise, you may be able to replace the rear left wheel speed sensor or repair the wiring yourself. However, professional diagnosis and repair are recommended for accurate and reliable fix.

6. Will resetting the OBDII code C1102 related to Rear Left Sensor 1 in my Infiniti make the issue go away?

Simply clearing the code without addressing the underlying problem will not resolve the issue. It is crucial to diagnose and fix the root cause to ensure the ABS system functions correctly.

7. Are there any common mistakes to avoid when dealing with OBDII code C1102 in an Infiniti concerning the Rear Left Sensor 1?

Avoid overlooking simple causes like loose connections or ignoring other related codes. Thorough diagnosis and attention to detail are essential for a successful repair.

8. How much does it typically cost to repair OBDII code C1102 related to Rear Left Sensor 1 in an Infiniti?

The cost of repair can vary depending on the extent of the issue and whether you choose to do it yourself or seek professional help. Costs may include parts, labor, and diagnostic fees.

9. Can extreme weather conditions affect the occurrence of OBDII code C1102 in an Infiniti due to the Rear Left Sensor 1?

Extreme weather conditions like excessive heat or cold can potentially impact sensor performance and wiring integrity, leading to the triggering of ABS codes like C1102. Regular maintenance can help prevent such issues.

10. How can I prevent OBDII code C1102 related to Rear Left Sensor 1 from appearing in my Infiniti in the future?

Regularly inspecting and maintaining the ABS system components, keeping connectors clean and secure, and addressing any warning lights promptly can help prevent the recurrence of code C1102.

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