2012-2016 Porsche 911 Fuse Box Diagram

The primary user-accessible fuse box is located in the cabin:
Driver’s Side Footwell Fuse Box: This is the main fuse panel. To access it, open the driver’s door and remove the black plastic access panel on the side of the dashboard (the panel facing the door jamb).
Rear Relays/Fuses: A carrier for relays and some fuses is located behind the rear seats, often behind the lower parcel shelf trim. This is typically accessed for major components like the fuel pump relay or other body control modules, but it’s less frequently used for standard troubleshooting.

This is standard for Porsche. The detailed, vehicle-specific fuse assignment map is usually printed on a folded paper diagram and stored inside the cover of the Driver’s Side Footwell Fuse Box.
Critical Tip: Do not rely solely on online diagrams. The paper map in your specific car is the most accurate source, as fuse assignments can vary slightly based on installed options (e.g., Burmester Audio, etc.).

This is the most common fuse to blow due to charging accessories.
Location: Typically found in the Driver’s Side Footwell Fuse Box.
Fuse Type/Amperage: Look for a 15A (Blue) fuse, often labeled as “Cigar Lighter” or “Socket.” Some reports suggest checking the fuse in Row A, Position 10.
Action: Use the plastic fuse puller (usually stored in the fuse box panel) to remove the suspected fuse and check if the wire inside is broken.

While there is a fuse for the PCM (Porsche Communication Management), the recommended first step is a hard system reset, which avoids disconnecting power to the unit abruptly.
Primary Fix (Hard Reset): Press and hold the PCM Info button (or the volume knob, depending on the software version) for approximately 10 seconds until the Porsche logo reappears and the system reboots.
Secondary Fix (Fuse): If the reset fails, check the fuse for the PCM (usually a low-amperage fuse, 5A to 10A). It is typically located in the Driver’s Side Footwell Fuse Box.

Rear Spoiler/Wing: The spoiler motor is controlled by a dedicated module and relays (often located in the rear relay panel). Failure is frequently caused by a relay failure or a bad motor itself, rather than a fuse, although a high-amperage fuse does protect the circuit.
Third Brake Light: This is a known common issue where the LED light strip fails due to moisture ingress or component aging, requiring replacement of the light assembly itself, not just a fuse.

No, unlike some other performance cars, the “fuse pull” trick is not the standard or recommended method for the 991.1 to permanently open the exhaust valves. The system is more integrated.
The Mod: To force the valves to remain open, owners typically perform a vacuum line modification or install an aftermarket exhaust valve controller module.