AutoCodesGeneric – C1772

C1772 Code - Air Suspension Vent Solenoid Output Circuit Short To Battery

Quick Answer

The 4-Wheel Air Suspension (4WAS) Module monitors the Air Suspension Vent Solenoid. Common causes include Faulty Air Suspension Compressor, Air Suspension Compressor harness is open or shorted, Air Suspension Compressor 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
C1772 indicates Air Suspension Vent Solenoid Output Circuit Short To Battery.
Common causes
Common causes include Faulty Air Suspension Compressor, Air Suspension Compressor harness is open or shorted, Air Suspension Compressor 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 3,864
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 26, 2020
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Code C1772 Description

The 4-Wheel Air Suspension (4WAS) Module monitors the Air Suspension Vent Solenoid. The 4WAS Module sets the OBDII code when the Air Suspension Vent Solenoid is not to factory specifications.
OBDII Code C1772 - Air Suspension Vent Solenoid Output Circuit Short To Battery - AutoCodes.com
C1772 Code - Air Suspension Vent Solenoid Output Circuit Short To Battery

What are the Possible Causes of the DTC C1772?

  • Faulty Air Suspension Compressor
  • Air Suspension Compressor harness is open or shorted
  • Air Suspension Compressor circuit poor electrical connection
  • Faulty 4-Wheel Air Suspension (4WAS) Module

How to Fix the DTC C1772?

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 C1772 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 C1772 code?

Need more information on how to fix the C1772 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1772 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • C1772 Ford — Air Suspension Vent Solenoid Output Circuit Short To Battery
  • C1772 Lincoln — Air Suspension Vent Solenoid Output Circuit Short To Battery
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 C1772 Code

1. What does the OBDII code C1772 mean?

C1772 indicates that the air suspension vent solenoid output circuit has a short to the battery, which prevents proper operation of the air suspension system.

2. What are the common symptoms of code C1772?

Symptoms may include a stiff or sagging suspension, uneven ride height, the air suspension warning light illuminated, or unusual noises from the suspension system.

3. What causes the C1772 code to appear?

Common causes include damaged or shorted wiring, a faulty vent solenoid, a defective air suspension control module, or corrosion in electrical connectors.

4. Can I drive my vehicle with the C1772 code active?

While the vehicle may still be drivable, continuing to drive with a faulty air suspension system can lead to uneven tire wear, reduced stability, and further damage to the suspension components.

5. How do I diagnose the cause of the C1772 code?

Start by inspecting the vent solenoid wiring and connectors for damage or corrosion, test the vent solenoid for proper operation, and check for voltage or continuity issues in the circuit.

6. How can I fix the C1772 code?

Repairs may involve replacing the vent solenoid, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the air suspension control module if necessary.

7. How much does it cost to fix the C1772 code?

Repair costs can vary but typically range from $100 to $600 depending on whether the issue involves wiring repairs, solenoid replacement, or control module replacement.

8. Can a blown fuse cause the C1772 code?

Yes, a blown fuse that supplies power to the air suspension system can contribute to this code and should be checked during diagnosis.

9. What tools are needed to diagnose and repair the C1772 code?

You’ll need an OBDII scanner, a multimeter to check electrical circuits, and basic tools to inspect and replace components.

10. How can I prevent the C1772 code from occurring again?

Regularly inspect and maintain the air suspension system, including wiring and connectors, and address any issues like corrosion or wear promptly.

Discuss the causes and fixes for C1772 OBDII Code

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