P059F GMC Code - Active Grille Air Shutter 1 Performance
Quick Answer
The active grille air shutter system closes shutters in the front grille to enhance vehicle aerodynamics in driving situations where cooling and A/C loads are relatively low and high levels of front-end airflow are not required. Common causes include Check for debris obstructing the Active Grille Air Shutter, Faulty Active Grille Air Shutter, Active Grille Air Shutter harness is open or shorted. 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
- P059F GMC indicates Active Grille Air Shutter 1 Performance.
- Common causes
- Common causes include Check for debris obstructing the Active Grille Air Shutter, Faulty Active Grille Air Shutter, Active Grille Air Shutter harness is open or shorted.
- 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.
Code P059F GMC Description
The dual active grille air shutter system consists of two aero shutter mechanisms located in the front grille for controlling the amount of air flowing through the grille. It includes three wires; ground, power, and a Local Interconnect Network (LIN) Bus serial data circuit from the ECM to the shutter actuator. The ECM determines shutter state based on various vehicle conditions such as vehicle speed, coolant temperature, fan state, refrigerant system pressure, A/C compressor state, and ambient temperature. The ECM has the ability to command each shutter individually to the open or closed positions through communications on the LIN Bus.
The actuators are powered by an ignition circuit that is active when the key is in the RUN position. The vehicle may have to be driven for up to 13 minutes at speeds greater than 41 km/h (25 mph) before a shutter begins to move. If low ambient temperature is detected, the shutters will remain in the closed position.
The Diagnostic Trouble Code (DTC) will be set if the desired Active Grille Air Shutter Position achieved has exceeded the number of attempts.
What are the Possible Causes of the DTC P059F GMC?
- Check for debris obstructing the Active Grille Air Shutter
- Faulty Active Grille Air Shutter
- Active Grille Air Shutter harness is open or shorted
- Active Grille Air Shutter circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P059F 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P059F 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 P059F GMC code?
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Information for Specific GMC Models
- P059F 2014 GMC Sierra — Active Grille Air Shutter 1 Performance
- P059F 2015 GMC Sierra — Active Grille Air Shutter 1 Performance
- P059F 2016 GMC Sierra — Active Grille Air Shutter 1 Performance
- P059F 2017 GMC Sierra — Active Grille Air Shutter 1 Performance
- P059F 2018 GMC Sierra — Active Grille Air Shutter 1 Performance
Frequently Asked Questions about P059F GMC Code
1. What are the common symptoms of OBDII code P059F GMC (Active Grille Air Shutter 1 Performance)?
- Common symptoms include poor engine performance, decreased fuel efficiency, and the activation of the Check Engine light.
2. What are the possible causes of OBDII code P059F GMC?
- Possible causes include a faulty active grille air shutter actuator, wiring issues, or a malfunction in the grille air shutter system.
3. How can I diagnose the cause of OBDII code P059F GMC?
- Diagnosis typically involves checking the active grille air shutter actuator for proper operation, inspecting the wiring for any damage, and verifying the functionality of the grille air shutter system.
4. Is it safe to continue driving with OBDII code P059F GMC active?
- It is generally not recommended to continue driving with this code active, as it can lead to decreased performance and potential damage to other engine components.
5. How can I reset OBDII code P059F GMC?
- Resetting the code can be done using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes. However, it is important to address the underlying issue causing the code before resetting it.
6. Can I repair OBDII code P059F GMC on my own?
- Depending on your mechanical skills and knowledge, you may be able to address this code on your own by inspecting the components involved, such as the actuator and wiring, and replacing any damaged parts.
7. What are the repair options for OBDII code P059F GMC?
- Repair options may include replacing the active grille air shutter actuator, repairing any damaged wiring, or addressing any issues with the grille air shutter system as needed.
8. How much does it typically cost to fix OBDII code P059F GMC?
- The cost of fixing this code can vary depending on the underlying issue, the parts needed for repair, and whether you choose to do the repair yourself or take your vehicle to a mechanic.
9. Are there any preventative maintenance tips to avoid OBDII code P059F GMC?
- Regularly inspecting the active grille air shutter system for any signs of wear or damage, and addressing any issues promptly, can help prevent the occurrence of this trouble code.
10. Can OBDII code P059F GMC cause further damage if not addressed promptly?
- Ignoring this code can lead to reduced engine performance, decreased fuel efficiency, and potential damage to other engine components over time, so it is advisable to address it promptly.
Discuss the causes and fixes for P059F GMC OBDII Code
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Hello, if possible, I have a GMC Terrain 2018 model, Denali Jake Engin, I checked it with the device, the code is P059f, can I know what is this please?
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