AutoCodes – Ford – C1831 Ford

C1831 Ford Code - Air Suspension Compressor Relay Circuit Open

Quick Answer

The Air Suspension Control Module monitors the Air Suspension Compressor Relay. Common causes include Faulty Air Suspension Compressor Relay, Air Suspension Compressor Relay harness is open or shorted, Air Suspension Compressor Relay 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: C1831 Ford indicates Air Suspension Compressor Relay Circuit Open.
Common causes: Common causes include Faulty Air Suspension Compressor Relay, Air Suspension Compressor Relay harness is open or shorted, Air Suspension Compressor Relay 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.

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Code Popularity 863

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 30, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1831 Ford Description

The Air Suspension Control Module monitors the Air Suspension Compressor Relay. The Air Suspension Control Module sets the OBDII code when the Air Suspension Compressor Relay is not to factory specifications.

OBDII Code C1831 Ford - Air Suspension Compressor Relay Circuit Open - AutoCodes.com — C1831 Ford Code - Air Suspension Compressor Relay Circuit Open

What does this mean?

What are the Possible Causes of the DTC C1831 Ford?

Faulty Air Suspension Compressor Relay
Air Suspension Compressor Relay harness is open or shorted
Air Suspension Compressor Relay circuit poor electrical connection
Faulty Air Suspension Control Module

How to Fix the DTC C1831 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 C1831 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 C1831 Ford code?

Need more information on how to fix the C1831 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1831 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 C1831 Ford Code

1. What does the OBDII code C1831 mean on a Ford vehicle?

C1831 indicates an issue with the air suspension compressor relay circuit, specifically that it is open or not functioning properly.

2. What are the common symptoms of a C1831 code?

Symptoms may include the air suspension not inflating, a sagging or uneven ride height, a warning light on the dashboard, or the compressor not activating.

3. What causes the C1831 code to appear?

Common causes include a faulty air suspension compressor relay, damaged or corroded wiring in the relay circuit, a blown fuse, or a malfunctioning air compressor.

4. How can I diagnose the C1831 code?

Start by checking the air suspension compressor relay and its associated wiring for damage or corrosion. Use a multimeter to test for proper voltage and continuity in the circuit.

5. Can I drive my Ford with the C1831 code active?

While the vehicle may still be drivable, continued use with an inactive air suspension system can lead to uneven tire wear, reduced comfort, and potential damage to other suspension components.

6. How do I fix the C1831 code?

Repairs may involve replacing the air suspension compressor relay, repairing or replacing damaged wiring, checking fuses, or addressing issues with the compressor itself.

7. What tools do I need to repair the C1831 code?

You may need a multimeter, a relay tester, basic hand tools, and potentially a scan tool to clear the code after repairs.

8. How much does it cost to fix the C1831 code?

The cost can vary depending on the issue. Replacing a relay typically costs $20-$50, while repairing wiring or replacing the compressor could be several hundred dollars.

9. Is the C1831 code specific to Ford vehicles?

While the code is most commonly associated with Ford vehicles, other manufacturers may use similar codes to indicate air suspension compressor relay circuit issues.

10. Can a faulty air suspension compressor trigger the C1831 code?

Yes, if the compressor is not functioning properly or has internal electrical issues, it can cause the relay circuit to appear open and trigger the code.