AutoCodes – GMC – P1561 GMC

P1561 GMC Code - Cruise Vent Solenoid

Quick Answer

With the engine running, the Powertrain Control Module (PCM) detects that the Vent solenoid circuit was shorted-to-voltage with solenoid commanded off, or the circuit was open, or the circuit was shorted-to-ground with the solenoid commanded on, all conditions met for 50 ms. Common causes include Faulty Cruise Vent Solenoid, Cruise Vent Solenoid harness is open or shorted, Cruise Vent Solenoid 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: P1561 GMC indicates Cruise Vent Solenoid.
Common causes: Common causes include Faulty Cruise Vent Solenoid, Cruise Vent Solenoid harness is open or shorted, Cruise Vent Solenoid 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 4,325

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 Aug 30, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1561 GMC Description

OBDII Code P1561 GMC - Cruise Vent Solenoid - AutoCodes.com — P1561 GMC Code - Cruise Vent Solenoid

What does this mean?

What are the Possible Causes of the DTC P1561 GMC?

Faulty Cruise Vent Solenoid
Cruise Vent Solenoid harness is open or shorted
Cruise Vent Solenoid circuit poor electrical connection

How to Fix the DTC P1561 GMC?

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 P1561 GMC 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 P1561 GMC code?

Need more information on how to fix the P1561 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1561 GMC 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 P1561 GMC Code

1. What are the common symptoms of OBDII code P1561 in a GMC related to the Cruise Vent Solenoid?

- Common symptoms include the inability to engage or maintain cruise control, illuminated check engine light, and potential issues with vehicle speed control.

2. What is the likely cause of OBDII code P1561 related to the Cruise Vent Solenoid in a GMC?

- The most likely cause is a malfunctioning or failed Cruise Vent Solenoid, which is responsible for controlling the vacuum pressure in the cruise control system.

3. How can I diagnose the issue related to OBDII code P1561 in a GMC Cruise Vent Solenoid?

- Diagnosis typically involves checking the Cruise Vent Solenoid for proper operation, inspecting vacuum lines for leaks or blockages, and using a scan tool to retrieve trouble codes.

4. Can I drive my GMC with OBDII code P1561 related to the Cruise Vent Solenoid?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent further problems with the cruise control system.

5. How can I repair OBDII code P1561 related to the Cruise Vent Solenoid in a GMC?

- Repair usually involves replacing the faulty Cruise Vent Solenoid, ensuring proper installation and connection, and clearing the trouble code with a scan tool.

6. Are there any DIY tips for fixing OBDII code P1561 in a GMC Cruise Vent Solenoid?

- DIY enthusiasts can attempt to replace the Cruise Vent Solenoid themselves if comfortable with automotive repairs, following manufacturer instructions and safety precautions.

7. Can a faulty Cruise Vent Solenoid cause other issues in my GMC besides triggering code P1561?

- Yes, a malfunctioning Cruise Vent Solenoid can also lead to issues with overall cruise control performance, affecting speed regulation and fuel efficiency.

8. Is it necessary to reset the ECU after repairing OBDII code P1561 related to the Cruise Vent Solenoid in a GMC?

- Yes, it is recommended to reset the ECU using a scan tool after repairing the issue to clear the trouble code and ensure proper functioning of the cruise control system.

9. How much does it typically cost to repair OBDII code P1561 related to the Cruise Vent Solenoid in a GMC?

- The cost of repair can vary depending on the labor rates and parts prices, but replacing the Cruise Vent Solenoid generally ranges from $100 to $300.

10. Can I prevent OBDII code P1561 related to the Cruise Vent Solenoid in my GMC?

- Regular maintenance, such as checking and replacing vacuum lines and components, can help prevent issues with the Cruise Vent Solenoid and potentially avoid triggering this trouble code.