Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that controls how much air goes into the engine. It's like a flap that opens and closes, and the car's computer can't tell if it's working right.
The active grille air shutter system helps control airflow to the engine for better efficiency. The position sensor monitors the shutter's position, and this code indicates an issue with the sensor circuit.
The P059A code is set when the powertrain control module (PCM) detects a malfunction in the circuit of the active grille air shutter position sensor. This sensor provides feedback to the PCM about the position of the grille shutters, which are used to optimize aerodynamics and engine temperature.
• Check Engine Light illuminated
• Reduced fuel efficiency
• Possible overheating in extreme conditions
• Faulty grille air shutter position sensor
• Wiring issues or poor electrical connections
• Failed active grille air shutter actuator
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the active grille air shutter position sensor for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the active grille air shutter position sensor.
• Replace the active grille air shutter actuator if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Ram 1500
• Regular maintenance checks
• Ensure wiring and connectors are secure
• Avoid driving through deep water
Sensor Issue
• Get the code diagnosed and repaired promptly to avoid fuel efficiency loss.
• Avoid harsh driving conditions until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code has become more common as manufacturers use active grille shutters to improve fuel efficiency.
Moderate – While not immediately critical, it can affect fuel efficiency and engine performance.
Ignoring this code may lead to increased emissions, which could violate emissions regulations.
• Engine running
• Vehicle in motion
The active grille air shutter is located at the front of the vehicle, behind the grille.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to reduced fuel efficiency and potentially cause engine overheating.
Q: Can I drive with the P059A code?
A: Yes, but it's best to address the issue soon to avoid long-term problems.
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