AutoCodes – Ford – C1890 Ford

C1890 Ford Code - Air Suspension Left Front Height Sensor Circuit Open

Quick Answer

The Vehicle Dynamic Module (VDM) monitors the Air Suspension Left Front Height Sensor. Common causes include Faulty Air Suspension Left Front Height Sensor, Air Suspension Left Front Height Sensor harness is open or shorted, Air Suspension Left Front Height Sensor circuit poor electrical connection. 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
C1890 Ford indicates Air Suspension Left Front Height Sensor Circuit Open.
Common causes
Common causes include Faulty Air Suspension Left Front Height Sensor, Air Suspension Left Front Height Sensor harness is open or shorted, Air Suspension Left Front Height Sensor circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 689
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Dec 03, 2020
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Code C1890 Ford Description

The Vehicle Dynamic Module (VDM) monitors the Air Suspension Left Front Height Sensor. The VDM sets the OBDII code when the Air Suspension Left Front Height Sensor is not to factory specifications.
OBDII Code C1890 Ford - Air Suspension Left Front Height Sensor Circuit Open - AutoCodes.com
C1890 Ford Code - Air Suspension Left Front Height Sensor Circuit Open

What are the Possible Causes of the DTC C1890 Ford?

  • Faulty Air Suspension Left Front Height Sensor
  • Air Suspension Left Front Height Sensor harness is open or shorted
  • Air Suspension Left Front Height Sensor circuit poor electrical connection
  • Faulty Vehicle Dynamic Module (VDM)

How to Fix the DTC C1890 Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1890 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C1890 Ford code?

Need more information on how to fix the C1890 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1890 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 C1890 Ford Code

1. What are the common symptoms of OBDII code C1890 in a Ford related to the left front height sensor circuit?

The common symptoms include improper ride height on the left front side of the vehicle, noticeable sagging or unevenness in the suspension, and possible issues with the vehicle's stability and handling.

2. What are the potential causes of the C1890 code indicating an open circuit in the left front height sensor of a Ford's air suspension system?

The code C1890 typically points to a wiring issue, such as a damaged or disconnected wire leading to the left front height sensor, a faulty height sensor itself, or a problem with the suspension control module.

3. How can I diagnose the C1890 code related to the air suspension left front height sensor circuit on my Ford?

Diagnosing the C1890 code involves inspecting the wiring and connectors leading to the left front height sensor, testing the sensor for proper functionality, and checking the suspension control module for any faults or errors.

4. Can I still drive my Ford safely with the C1890 code indicating an open circuit in the left front height sensor?

It is not recommended to drive your Ford with the C1890 code unresolved, as it can lead to compromised suspension performance, potential handling issues, and further damage to the air suspension system.

5. How can I repair the C1890 code related to the left front height sensor circuit in my Ford's air suspension system?

Repairing the C1890 code often involves repairing or replacing damaged wiring leading to the left front height sensor, replacing the faulty height sensor itself, and clearing the code using a diagnostic tool.

6. Is it possible to reset the C1890 OBDII code without fixing the underlying issue in the left front height sensor circuit of a Ford?

While you can clear the code temporarily using a diagnostic tool, the underlying issue causing the C1890 code will persist until properly diagnosed and repaired. Resetting the code without addressing the problem may result in reoccurrence.

7. What are the potential long-term effects of ignoring the C1890 code in a Ford's air suspension system?

Ignoring the C1890 code can lead to further damage to the air suspension system, increased wear on other components, compromised ride quality, and potential safety hazards due to unstable handling.

8. How much does it typically cost to repair the C1890 code indicating an open circuit in the left front height sensor of a Ford?

The cost of repairing the C1890 code can vary depending on the exact cause of the issue, the labor rates in your area, and whether you choose to address the problem yourself or take it to a professional mechanic. Costs may range from a few hundred to over a thousand dollars.

9. Are there any preventive maintenance steps I can take to avoid encountering the C1890 OBDII code in my Ford's air suspension system?

Regularly inspecting the wiring and connectors related to the air suspension height sensors, ensuring proper maintenance of the suspension components, and addressing any issues promptly can help prevent the occurrence of the C1890 code.

10. Can the C1890 code indicating an open circuit in the left front height sensor circuit of a Ford be intermittent or sporadic in nature?

Yes, the C1890 code can sometimes be intermittent, especially if the wiring issue leading to the left front height sensor is not consistently failing. It is important to address intermittent codes promptly to prevent potential worsening of the problem.

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