Engine-CodesGeneric – C1055

C1055 Code - Left Rear Inlet Solenoid Circuit Failure

Quick Answer

The C1055 code indicates a failure in the left rear inlet solenoid circuit of the vehicle. Common causes include Faulty left rear inlet solenoid, Damaged or corroded wiring in the circuit, Loose or poor connection in the circuit. 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
C1055 indicates Left Rear Inlet Solenoid Circuit Failure.
Common causes
Common causes include Faulty left rear inlet solenoid, Damaged or corroded wiring in the circuit, Loose or poor connection in the circuit.
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.
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code C1055 Description

The C1055 code indicates a failure in the left rear inlet solenoid circuit of the vehicle. The solenoid is an essential component of the vehicle's braking system, specifically in the Anti-lock Braking System (ABS). When this circuit fails, it can lead to issues with the vehicle's ability to control braking pressure and prevent wheel lock-up during sudden stops. This can compromise the vehicle's overall handling and safety on the road. The code may be triggered by a variety of factors, such as a faulty solenoid, damaged wiring, or a poor connection in the circuit.

OBDII Code C1055 - Left Rear Inlet Solenoid Circuit Failure
C1055 Code - Left Rear Inlet Solenoid Circuit Failure

Common Causes of C1055

  1. Faulty left rear inlet solenoid
  2. Damaged or corroded wiring in the circuit
  3. Loose or poor connection in the circuit
  4. Electrical issues such as a blown fuse or relay
  5. Water or debris intrusion affecting the solenoid

Symptoms of C1055

  1. ABS warning light illuminated on the dashboard
  2. Loss of ABS functionality
  3. Increased stopping distance
  4. Brakes locking up during sudden stops
  5. Unusual noises coming from the braking system

How to Fix C1055

  1. Begin by diagnosing the specific cause of the circuit failure using a diagnostic tool that can read ABS codes.
  2. Inspect the left rear inlet solenoid and wiring for any visible damage or corrosion.
  3. Test the solenoid's functionality and resistance to determine if it needs to be replaced.
  4. Repair or replace any damaged wiring or connectors in the circuit.
  5. Clear the code from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix C1055

The cost of repairing a left rear inlet solenoid circuit failure can vary depending on the specific cause of the issue and the make and model of the vehicle. Generally, the cost can range from $200 to $500 for parts and labor. It's essential to consider the specific diagnosis time and labor rates at auto repair shops, which can influence the final cost. Checking with local shops for estimates is recommended.

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Code C1055 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 C1055 Code

1. What are the common symptoms of OBDII code C1055 (Left Rear Inlet Solenoid Circuit Failure)?

- Common symptoms include the ABS warning light illuminating on the dashboard, loss of ABS functionality, and potential issues with traction control.

2. What are some possible causes of OBDII code C1055?

- Possible causes include a faulty left rear inlet solenoid, damaged wiring or connectors in the circuit, or issues with the ABS control module.

3. How can I diagnose the cause of OBDII code C1055?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific trouble code, inspecting the left rear inlet solenoid and its wiring for damage, and testing the circuit for continuity.

4. Can I drive my vehicle with OBDII code C1055 present?

- It is not recommended to drive the vehicle with this code present, as it may lead to loss of ABS functionality and potentially compromise vehicle safety.

5. How can I repair OBDII code C1055 at home?

- Repairing this code may involve replacing the left rear inlet solenoid, repairing or replacing damaged wiring or connectors, and clearing the trouble code with an OBDII scanner.

6. Is it safe to continue driving if the ABS warning light is on due to code C1055?

- It is not safe to continue driving, as the ABS system may not function properly, potentially affecting braking performance and vehicle stability.

7. How much does it cost to repair OBDII code C1055 at a mechanic or dealership?

- Repair costs can vary depending on the specific cause of the code, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can OBDII code C1055 be intermittent or permanent?

- This code can be intermittent if the issue is not constant, but it is important to diagnose and repair it to ensure the ABS system functions properly at all times.

9. Will resetting the trouble code make OBDII code C1055 disappear permanently?

- Resetting the trouble code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear after some driving cycles.

10. Are there any safety concerns associated with OBDII code C1055?

- Yes, there are safety concerns as the code indicates a failure in the left rear inlet solenoid circuit, potentially affecting ABS functionality and overall vehicle stability and control.

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