Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the voltage going to a part of the car that helps control air flow to the engine. It's like if a toy had a battery that was too strong, and it might not work right.
The Active Grille Air Shutter is a system that controls airflow to the engine by opening and closing shutters. This code indicates that the voltage in the circuit for the second shutter (B) is higher than expected.
The P05B7 code is triggered when the Powertrain Control Module (PCM) detects that the voltage in the supply circuit for Active Grille Air Shutter B is above the specified range. This could be due to a short circuit or a malfunctioning component.
• Check Engine Light illuminated
• Reduced fuel efficiency
• Possible overheating in extreme conditions
• Faulty Active Grille Air Shutter B
• Wiring issues or short circuits
• Defective PCM or sensor
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Scan the vehicle with an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the voltage levels in the Active Grille Air Shutter B circuit.
• Repair or replace damaged wiring or connectors.
• Replace the Active Grille Air Shutter B if faulty.
• Update or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $500
Moderate
• Chevrolet Silverado
• Ford F-150
• Ram 1500
• Regular maintenance and inspection of wiring.
• Keep the grille area clean to prevent debris buildup.
• Ensure all electrical connections are secure.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Avoid driving in extreme conditions until repaired.
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
Active Grille Air Shutters have been used to improve fuel efficiency and aerodynamics, and issues with them have become more common as they age.
Moderate – It should be addressed soon to prevent potential fuel efficiency loss or engine overheating.
Driving with a Check Engine Light can lead to further damage or emissions violations.
• Engine running
• Vehicle at operating temperature
The Active Grille Air Shutter is located at the front of the vehicle, behind the grille.
Q: Can I drive with a P05B7 code?
A: While you can drive with this code, it's best to get it fixed soon to avoid potential issues.
Q: What happens if I ignore the P05B7 code?
A: Ignoring the code could lead to reduced fuel efficiency and possible engine overheating.
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