Check the owner manual first and confirm panel location near the dashboard and engine compartment before removing any protective cover.
The electrical distribution system in this sedan uses multiple panels, each assigned to specific circuits such as lighting, infotainment, power windows, and engine control. Interior panel units are typically placed on the driver side behind a trim cover, while the engine area unit handles high-load components like cooling fans and ignition modules.
Each slot is labeled with a number and paired with a defined amperage rating, commonly ranging from 5A to 40A. Using the wrong rating can lead to overheating or failure of connected components. Always match the printed value on the metal strip or plastic housing when replacing a blown element.
Color-coded wiring simplifies identification during inspection. Red usually indicates constant power supply, yellow connects to ignition-switched circuits, and black represents ground. This pattern helps trace faults quickly without removing large sections of the harness.
2016 Chevy Impala Fuse Box Diagram with Panel Layout and Circuit Details
Identify each panel section by reading the cover label and match slot numbers with circuit names before removing any protective element.
The cabin-mounted electrical center is arranged in vertical rows, where lower-numbered positions usually handle low-current systems such as infotainment, interior lighting, and control modules. Higher positions often support power seats, HVAC controls, and auxiliary outlets. Each slot includes a precise amperage marking, typically from 5A to 30A, which must be followed during replacement.
Interior panel slot structure
Slots are grouped into functional zones. The left column often contains lighting and signal circuits, the center handles dashboard electronics and communication modules, while the right column supports comfort features. This grouping allows faster troubleshooting by narrowing down affected systems when a single component stops working.
The engine-area electrical center uses larger protective elements and relays. These positions control high-load components such as cooling fans, fuel pump, starter relay, and ABS system. Ratings here commonly range from 30A to 60A, with relays positioned adjacent to related circuits for direct switching.
Relay and high current circuit mapping
Relay slots are usually labeled with abbreviations such as FAN, PUMP, or IGN, indicating their assigned system. Adjacent slots provide power feed through high-capacity links. Swapping relays with identical part numbers can help confirm a faulty unit without additional tools.
Wiring color codes support quick tracing: red for constant battery supply, pink or orange for ignition-controlled power, and black for grounding. Following these colors from the panel to components helps locate breaks or loose connections without dismantling large sections of the harness.
Interior fuse panel location near dashboard and slot numbering guide
Open the driver side door and remove the small side cover on the dashboard edge to access the interior electrical panel without removing major trim parts.
The panel sits behind a snap-on cover positioned near the steering column end cap. Once removed, rows of numbered slots become visible, typically arranged from top to bottom and left to right. Lower numbers often correspond to lighting, audio system, and control modules, while higher numbers supply power windows, seat motors, and auxiliary outlets. Each position includes a printed number and amperage value, allowing quick identification during replacement.
Use the numbering sequence as a reference:
- Slots 1–10 – dashboard electronics and communication modules
- Slots 11–20 – lighting systems and signal circuits
- Slots 21–30 – comfort features such as power seats and climate control
- Upper slots – spare positions or optional equipment circuits