Engine-CodesFord – C1870 Ford

C1870 Ford Code - Air Suspension Gate Solenoid Output Circuit Open

Quick Answer

The C1870 diagnostic trouble code (DTC) is specific to Ford vehicles and indicates an issue with the air suspension system, particularly related to the gate solenoid output circuit. Common causes include Wiring Issues: Damaged or frayed wiring in the solenoid circuit can lead to an open circuit condition, Corroded Connectors: Corrosion at the electrical connectors can disrupt the flow of electricity to the solenoid, Faulty Gate Solenoid: A malfunctioning solenoid itself may fail to operate, causing the circuit to open. 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
C1870 Ford indicates Air Suspension Gate Solenoid Output Circuit Open.
Common causes
Common causes include Wiring Issues: Damaged or frayed wiring in the solenoid circuit can lead to an open circuit condition, Corroded Connectors: Corrosion at the electrical connectors can disrupt the flow of electricity to the solenoid, Faulty Gate Solenoid: A malfunctioning solenoid itself may fail to operate, causing the circuit to open.
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 30, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code C1870 Ford Description

The C1870 diagnostic trouble code (DTC) is specific to Ford vehicles and indicates an issue with the air suspension system, particularly related to the gate solenoid output circuit. This code suggests that the control module has detected an open circuit in the solenoid that regulates the air suspension's operation. The air suspension system is designed to provide a smooth ride by adjusting the vehicle's height based on load and driving conditions. When the gate solenoid output circuit is open, it means that the solenoid is not receiving the necessary signals to function correctly, which can lead to improper suspension operation.

OBDII Code C1870 Ford - Air Suspension Gate Solenoid Output Circuit Open
C1870 Ford Code - Air Suspension Gate Solenoid Output Circuit Open

Common Causes of C1870 Ford

  1. Wiring Issues: Damaged or frayed wiring in the solenoid circuit can lead to an open circuit condition.
  2. Corroded Connectors: Corrosion at the electrical connectors can disrupt the flow of electricity to the solenoid.
  3. Faulty Gate Solenoid: A malfunctioning solenoid itself may fail to operate, causing the circuit to open.
  4. Control Module Failure: The air suspension control module may be defective, failing to send signals to the solenoid.
  5. Air Suspension System Leaks: Leaks in the air suspension system can lead to pressure loss, affecting solenoid operation.

Symptoms of C1870 Ford

  1. Warning Light: The air suspension warning light may illuminate on the dashboard, indicating a malfunction in the system.
  2. Uneven Ride Height: The vehicle may exhibit uneven ride height, with one side sitting lower than the other or the vehicle being too high or low overall.
  3. Rough Ride Quality: Drivers may experience a harsher ride quality due to the inability of the suspension to adjust to road conditions.
  4. Increased Noise: There may be unusual noises from the air suspension components, such as hissing or popping sounds, indicating air leaks or mechanical failure.
  5. Poor Handling: The vehicle may handle poorly, with reduced stability during turns or when driving over bumps.

How to Fix C1870 Ford

  1. Visual Inspection: Start with a thorough visual inspection of the wiring and connectors associated with the air suspension gate solenoid. Look for signs of damage, corrosion, or loose connections.
  2. Electrical Testing: Use a multimeter to test the continuity of the solenoid circuit. Check for voltage at the solenoid when the vehicle is in operation to determine if the control module is sending signals.
  3. Replace Faulty Components: If any damaged wiring or corroded connectors are found, repair or replace them. If the solenoid is faulty, it should be replaced with a new one.
  4. Control Module Diagnosis: If the wiring and solenoid are functioning properly, further diagnostics may be required on the air suspension control module to ensure it is operating correctly.
  5. System Calibration: After repairs, the air suspension system may need to be calibrated to ensure it operates within the manufacturer's specifications.

Cost to Fix C1870 Ford

The cost to repair the C1870 code can vary widely based on the specific issue identified during diagnosis. Typical repair costs may range from $200 to $800, including parts and labor. For instance, replacing a faulty solenoid may cost around $200 to $400, while more extensive repairs involving wiring or control module replacement could exceed $600.

Need more information about the C1870 Ford code?

Need more information on how to fix the C1870 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1870 Ford code diagnosed by a professional: Find a repair shop in your area

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 C1870 Ford Code

1. What are common symptoms of OBDII code C1870 in a Ford related to the Air Suspension Gate Solenoid output circuit being open?

- Common symptoms include the vehicle riding lower than usual, uneven suspension, and the air compressor running frequently.

2. What could cause the Air Suspension Gate Solenoid Output Circuit Open fault code C1870 in a Ford?

- Possible causes include a faulty air suspension gate solenoid, damaged wiring or connectors, or a malfunctioning suspension control module.

3. How can I diagnose the issue causing OBDII code C1870 in my Ford related to the Air Suspension Gate Solenoid?

- Diagnosis typically involves inspecting the air suspension gate solenoid, checking the wiring and connectors for damage, and using a diagnostic tool to assess the suspension system.

4. Can OBDII code C1870 in a Ford be fixed without professional help?

- While some basic checks like inspecting wiring connections can be done at home, diagnosing and repairing the root cause of the issue may require professional assistance.

5. Is it safe to drive my Ford with OBDII code C1870 related to the Air Suspension Gate Solenoid issue?

- It is not recommended to drive the vehicle extensively with this fault code as it may lead to further damage to the suspension system and compromise driving safety.

6. What are the repair options for fixing OBDII code C1870 in a Ford due to the Air Suspension Gate Solenoid circuit being open?

- Repair options may include replacing the faulty air suspension gate solenoid, repairing damaged wiring or connectors, or reprogramming the suspension control module.

7. How much does it typically cost to repair OBDII code C1870 in a Ford related to the Air Suspension Gate Solenoid issue?

- Repair costs can vary depending on the extent of the issue, parts needed, and labor rates, but it is advisable to get a few quotes from different repair shops.

8. Can resetting the OBDII system clear the C1870 fault code in a Ford?

- Resetting the OBDII system may temporarily clear the fault code, but it is likely to return if the underlying issue causing the Air Suspension Gate Solenoid problem is not addressed.

9. Are there any preventative measures to avoid OBDII code C1870 in a Ford related to the Air Suspension Gate Solenoid?

- Regularly inspecting the suspension system, checking for any signs of wear or damage, and addressing any issues promptly can help prevent the occurrence of this fault code.

10. Does OBDII code C1870 affect the overall performance of a Ford vehicle?

- Yes, this fault code can impact the vehicle's ride quality, handling, and overall stability, making it important to address the issue promptly.

Discuss the causes and fixes for C1870 Ford OBDII Code

Code C1870 Ford comments

No comments found for this page.