AutoCodes – Chevrolet – P0480 2017 Chevrolet Silverado

P0480 2017 Chevrolet Silverado Code - Cooling Fan Speed Output Circuit

Quick Answer

The engine cooling fan system is composed of 2 electric cooling fans, fan motors, and 2 control modules. Common causes include Faulty Cooling Fan Control Module, Cooling Fan Control Module harness is open or shorted, Cooling Fan Control Module 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
P0480 2017 Chevrolet Silverado indicates Cooling Fan Speed Output Circuit.
Common causes
Common causes include Faulty Cooling Fan Control Module, Cooling Fan Control Module harness is open or shorted, Cooling Fan Control Module 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 638
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 19, 2022
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Code P0480 2017 Chevrolet Silverado Description

The engine cooling fan system is composed of 2 electric cooling fans, fan motors, and 2 control modules. The Engine Control Module (ECM) controls the fan speed by sending a Pulse Width Modulated (PWM) signal to the cooling fan control modules. The cooling fan control module varies the voltage drop across the cooling fan motors in relation to the pulse width modulated signal, which allows the cooling fans to operate at variable speeds.
The cooling fan speed is affected by many different conditions and the ECM will adjust the duty cycle from 0 - 100 percent based on cooling system requirements. The scan tool output control is only capable of operating the cooling fan increments, between 10 - 90 percent. 90 percent is considered high-speed fan. When multiple cooling fan speed requests are received, the ECM operates the fan at the highest speed requests.
The Diagnostic Trouble Code (DTC) will be set when the commanded state of the driver and the actual state of the control circuit do not match for greater than 5 s.
OBDII Code P0480 2017 Chevrolet Silverado - Cooling Fan Speed Output Circuit - AutoCodes.com
P0480 2017 Chevrolet Silverado Code - Cooling Fan Speed Output Circuit

What are the Possible Causes of the DTC P0480 2017 Chevrolet Silverado?

  • Faulty Cooling Fan Control Module
  • Cooling Fan Control Module harness is open or shorted
  • Cooling Fan Control Module circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0480 2017 Chevrolet Silverado?

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 P0480 2017 Chevrolet Silverado 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 P0480 2017 Chevrolet Silverado code?

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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 P0480 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0480 in a 2017 Chevrolet Silverado?

- Common symptoms include overheating engine, excessive fan noise, and the check engine light illuminating on the dashboard.

2. What does the OBDII code P0480 indicate in a 2017 Chevrolet Silverado?

- OBDII code P0480 indicates a problem with the Cooling Fan Speed Output Circuit in the vehicle.

3. What are the possible causes of OBDII code P0480 in a 2017 Chevrolet Silverado?

- Possible causes include a faulty cooling fan motor, damaged wiring or connectors, a defective cooling fan relay, or issues with the engine coolant temperature sensor.

4. How can I diagnose the issue related to OBDII code P0480 in my 2017 Chevrolet Silverado?

- You can diagnose the issue by checking the cooling fan operation, inspecting the wiring and connectors for any damage, testing the cooling fan relay, and verifying the engine coolant temperature sensor's functionality.

5. Can I continue driving my 2017 Chevrolet Silverado with OBDII code P0480?

- It is not recommended to drive the vehicle with OBDII code P0480, as it can lead to engine overheating and potential damage. It is advisable to address the issue promptly.

6. What are some repair tips for resolving OBDII code P0480 in a 2017 Chevrolet Silverado?

- Repair tips include replacing the faulty cooling fan motor, repairing or replacing damaged wiring and connectors, testing and replacing the cooling fan relay if necessary, and ensuring the engine coolant temperature sensor is functioning correctly.

7. How much does it typically cost to repair OBDII code P0480 in a 2017 Chevrolet Silverado?

- The cost of repair can vary depending on the specific issue causing the code. It may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can a DIY enthusiast fix OBDII code P0480 in a 2017 Chevrolet Silverado?

- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to address simpler causes of OBDII code P0480, such as replacing a cooling fan motor or checking for damaged wiring. However, more complex issues may require professional assistance.

9. Will resetting the check engine light resolve OBDII code P0480 in a 2017 Chevrolet Silverado?

- Simply resetting the check engine light will not resolve the underlying issue causing OBDII code P0480. It is essential to diagnose and address the root cause of the problem to prevent further complications.

10. How can I prevent OBDII code P0480 from occurring in my 2017 Chevrolet Silverado in the future?

- Regular maintenance, such as checking the cooling system components, ensuring proper fan operation, and addressing any issues promptly, can help prevent OBDII code P0480 from occurring in the future.

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