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Engine-Codes – Generic – C1739

C1739 Code - Right Rear Height Control Solenoid Valve Circuit

Quick Answer

The C1739 code refers to an issue with the Right Rear Height Control Solenoid Valve Circuit in a vehicle's suspension system. Common causes include Electrical issues such as a faulty wiring harness or a blown fuse, A malfunctioning right rear height control solenoid valve, Corrosion or damage to the electrical connectors related to the solenoid valve 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
C1739 indicates Right Rear Height Control Solenoid Valve Circuit.
Common causes
Common causes include Electrical issues such as a faulty wiring harness or a blown fuse, A malfunctioning right rear height control solenoid valve, Corrosion or damage to the electrical connectors related to the solenoid valve 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code C1739 Description

The C1739 code refers to an issue with the Right Rear Height Control Solenoid Valve Circuit in a vehicle's suspension system. This code typically indicates a malfunction in the solenoid valve that controls the height of the right rear suspension. The height control system in a vehicle is responsible for maintaining a consistent ride height, ensuring proper handling, stability, and comfort while driving. When this solenoid valve circuit malfunctions, it can lead to issues with the vehicle's suspension system, affecting the overall performance and ride quality.

OBDII Code C1739 - Right Rear Height Control Solenoid Valve Circuit
C1739 Code - Right Rear Height Control Solenoid Valve Circuit

Common Causes of C1739

  1. Electrical issues such as a faulty wiring harness or a blown fuse.
  2. A malfunctioning right rear height control solenoid valve.
  3. Corrosion or damage to the electrical connectors related to the solenoid valve circuit.
  4. Poor connections or loose terminals in the circuitry.
  5. Water intrusion or contamination affecting the solenoid valve operation.

Symptoms of C1739

  1. Uneven ride height on the right rear side of the vehicle.
  2. Increased body roll and reduced stability while driving.
  3. Harsh or bumpy ride quality, especially over uneven road surfaces.
  4. Illumination of the suspension warning light on the dashboard.
  5. Difficulty maintaining control of the vehicle, especially during cornering or braking.

How to Fix C1739

  1. Begin by performing a visual inspection of the right rear height control solenoid valve, wiring, and connectors for any visible damage or corrosion.
  2. Use a multimeter to test the continuity and resistance of the solenoid valve and the associated wiring to identify any faulty components.
  3. Replace the right rear height control solenoid valve if it is found to be malfunctioning.
  4. Repair or replace any damaged wiring or connectors in the circuit.
  5. Clear the diagnostic trouble codes from the vehicle's system using a scan tool and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix C1739

The cost estimate for repairing the Right Rear Height Control Solenoid Valve Circuit can vary depending on the specific vehicle make and model, as well as the labor rates in your area. On average, the parts for this repair can range from $100 to $300, while the labor costs can add an additional $100 to $200. Overall, the total repair cost for addressing the C1739 code is typically between $200 and $500. It's recommended to consult with a professional mechanic or auto repair shop for a more accurate estimate based on your vehicle's specific requirements. Keep in mind that labor rates at different repair facilities can vary, so it's advisable to shop around for the best deal.

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Code C1739 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 C1739 Code

1. What does OBDII code C1739 mean?

C1739 indicates an issue with the Right Rear Height Control Solenoid Valve Circuit, which is part of the vehicle's suspension system responsible for maintaining proper ride height.

2. What are common symptoms of code C1739?

Symptoms may include uneven ride height, a sagging or raised rear end on the right side, suspension warning lights, or a noticeable decrease in ride comfort.

3. What causes the C1739 code to appear?

Common causes include a faulty height control solenoid valve, damaged wiring or connectors in the solenoid circuit, a malfunctioning air compressor, or a control module issue.

4. Can I drive my vehicle with a C1739 code?

Driving with this code may be possible, but it could lead to further suspension damage or compromised handling, especially if the ride height is uneven or the air suspension is not functioning properly.

5. How is the C1739 code diagnosed?

A mechanic will typically check the solenoid valve for proper operation, inspect the wiring and connectors, test the air compressor, and use an OBDII scanner to confirm the fault.

6. How do I fix the C1739 code?

Repairs may include replacing the right rear height control solenoid valve, repairing damaged wiring or connectors, or recalibrating the suspension system control module.

7. How much does it cost to repair code C1739?

Repair costs can vary depending on the issue, but replacing the solenoid valve typically costs between $150 and $400, including parts and labor.

8. Can a blown fuse cause the C1739 code?

Yes, a blown fuse in the suspension or solenoid circuit could disrupt power to the solenoid and trigger the code.

9. Do I need to recalibrate the suspension after fixing the C1739 code?

In many cases, suspension recalibration is necessary after repairs to ensure proper ride height and system functionality.

10. What tools are needed to troubleshoot code C1739?

Tools may include an OBDII scanner, a multimeter for checking electrical continuity, and possibly a suspension system diagnostic tool for recalibration.

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