AutoCodes – Generic – C1770

C1770 Code - Air Suspension Vent Solenoid Output Circuit Failure

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: C1770 indicates Air Suspension Vent Solenoid Output Circuit Failure.
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 13,100

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 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1770 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 C1770 - Air Suspension Vent Solenoid Output Circuit Failure - AutoCodes.com — C1770 Code - Air Suspension Vent Solenoid Output Circuit Failure

What does this mean?

What are the Possible Causes of the DTC C1770?

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 C1770?

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 C1770 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 C1770 code?

Need more information on how to fix the C1770 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1770 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1770 Ford — Air Suspension Vent Solenoid Output Circuit Failure
C1770 Lincoln — Air Suspension Vent Solenoid Output Circuit Failure

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 C1770 Code

1. What are common symptoms of OBDII code C1770 (Air Suspension Vent Solenoid Output Circuit Failure)?

- Common symptoms include issues with the air suspension system, such as uneven ride height, sagging suspension, or a rough ride.

2. What are possible causes of OBDII code C1770?

- Possible causes include a faulty air suspension vent solenoid, damaged wiring or connectors in the solenoid circuit, or a malfunction in the air suspension control module.

3. How can I diagnose OBDII code C1770?

- Diagnosis usually involves using a scan tool to retrieve the error code, inspecting the air suspension system components for damage, and testing the vent solenoid and its circuit for continuity and proper operation.

4. Can I still drive my vehicle with OBDII code C1770 present?

- It is not recommended to drive your vehicle with this code present, as it can affect the performance and safety of the air suspension system.

5. How can I repair OBDII code C1770?

- Repair typically involves replacing the faulty air suspension vent solenoid, repairing any damaged wiring or connectors, and clearing the error code with a scan tool.

6. Is it possible to reset OBDII code C1770 without fixing the underlying issue?

- While you can clear the error code temporarily, it is important to address the root cause of the problem to prevent it from recurring.

7. Are there any maintenance tips to prevent OBDII code C1770 from occurring?

- Regularly inspecting the air suspension system for signs of wear or damage, ensuring proper maintenance of the system components, and addressing any issues promptly can help prevent this code from occurring.

8. Can extreme weather conditions contribute to OBDII code C1770?

- Yes, extreme weather conditions such as excessive heat or moisture can potentially affect the air suspension system components and lead to issues like the vent solenoid circuit failure.

9. How long does it typically take to repair OBDII code C1770?

- The repair time can vary depending on the extent of the issue and the availability of parts, but it usually takes a few hours to complete the repair.

10. Is it necessary to visit a mechanic for OBDII code C1770 repair, or can I do it myself?

- While some DIY enthusiasts may attempt the repair themselves, it is recommended to consult a qualified mechanic or technician with experience in diagnosing and repairing air suspension system issues to ensure the problem is properly addressed.