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Engine-Codes – Generic – C1105

C1105 Code - Rear Right Sensor 2

Quick Answer

The C1105 code indicates an issue with the rear right sensor 2 in the vehicle's braking system. Common causes include Faulty rear right sensor 2, Damaged wiring or connections to the sensor, 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
C1105 indicates Rear Right Sensor 2.
Common causes
Common causes include Faulty rear right sensor 2, Damaged wiring or connections to the sensor, 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 Aug 30, 2024
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Code C1105 Description

The C1105 code indicates an issue with the rear right sensor 2 in the vehicle's braking system. This sensor is responsible for monitoring the wheel speed and providing data to the vehicle's ABS (anti-lock braking system) and traction control system. When this sensor malfunctions, it can lead to potential safety concerns as it affects the vehicle's ability to properly control braking and traction.

OBDII Code C1105 - Rear Right Sensor 2
C1105 Code - Rear Right Sensor 2

Common Causes of C1105

  1. Faulty rear right sensor 2
  2. Damaged wiring or connections to the sensor
  3. Corrosion or debris affecting sensor operation
  4. Electronic control unit (ECU) communication issues
  5. Sensor alignment or mounting problems

Symptoms of C1105

  1. ABS warning light illuminated on the dashboard
  2. Traction control system malfunction
  3. Loss of stability control
  4. Braking system engagement issues
  5. Uneven braking or braking pulsation

How to Fix C1105

  1. Diagnose the specific issue with a professional diagnostic tool to confirm the sensor 2 fault.
  2. Inspect wiring and connections for any damage or corrosion; repair or replace as needed.
  3. Clean sensor area and ensure proper alignment and mounting of the sensor.
  4. Replace the faulty rear right sensor 2 with a new one.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure proper sensor function.

Cost to Fix C1105

The typical repair costs for addressing a rear right sensor 2 issue can range from $150 to $300, depending on the specific vehicle make and model. This estimate includes the cost of the sensor itself, labor for diagnosis and repair, and any additional parts or materials needed. It's important to note that actual costs may vary based on location, shop rates, and the extent of the repair required. It's recommended to consult with a professional mechanic for an accurate estimate tailored to your specific situation.

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Code C1105 Information for Specific Makes

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 C1105 Code

1. What does the OBDII code C1105 mean?

C1105 indicates an issue with the rear right wheel speed sensor (Sensor 2), which is part of the ABS system.

2. What are the symptoms of a C1105 code?

Common symptoms include the ABS warning light being illuminated, reduced braking performance, or the ABS system not functioning properly.

3. What causes the C1105 code to be triggered?

Possible causes include a faulty rear right wheel speed sensor, damaged wiring or connectors, debris on the sensor, or a malfunctioning ABS control module.

4. Can I drive with a C1105 code?

While your vehicle may still be drivable, the ABS system may not function correctly, reducing safety during emergency braking or on slippery roads.

5. How do I diagnose the C1105 code?

Inspect the rear right wheel speed sensor for damage or debris, check the wiring and connectors for continuity, and use an OBDII scanner to confirm the fault.

6. How can I fix a C1105 code?

Repairs may include cleaning or replacing the rear right wheel speed sensor, repairing damaged wires, or replacing the ABS module if necessary.

7. How much does it cost to repair a C1105 code?

The cost depends on the specific repair, ranging from $50-$150 for a sensor replacement to $500 or more if the ABS module needs replacement.

8. Can I reset the C1105 code without fixing the issue?

You can clear the code with an OBDII scanner, but it will likely return if the underlying issue is not addressed.

9. What tools are needed to address the C1105 code?

You’ll need an OBDII scanner, multimeter for electrical testing, and possibly basic hand tools for sensor replacement.

10. What happens if I ignore the C1105 code?

Ignoring the code can lead to compromised braking performance, increased safety risks, and potential damage to other ABS components.

Discuss the causes and fixes for C1105 OBDII Code

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