The second-generation Mazda CX-9 debuted in Los Angeles in late 2015. While its design shares strong visual ties with the Koeru concept car, the production crossover features a seven-seat layout rather than the concept’s five-seater configuration. This guide provides detailed fuse box diagrams and panel locations for the second-generation Mazda CX-9 (TC series, model years 2015–2021).
Below are the locations and diagrams for the power distribution centers (fuse boxes). Fuses designated for the accessory power socket (“cigarette lighter”) and fuel pump are highlighted in bold.
Engine Compartment Fuse Box
Located on the left side of the engine compartment, adjacent to the battery. Remove the protective cover to gain access.
Overview.
| Diagram | ||
|---|---|---|
|
||
| No. | Circuit Protected | Rating (A) |
| 1 | Windshield wiper de-icer (if equipped) | 20 |
| 2 | Various electrical circuits | 20 |
| 3 | Engine control system | 30 |
| 4 | — | — |
| 5 | Power windows | 30 |
| 6 | Power seats | 30 |
| 7 | — | — |
| 8 | Engine control system | 20 |
| 9 | Rear window defogger | 40 |
| 10 | 2018–2019: Not used; | 20 |
| 2020: Heated steering wheel | ||
| 11 | Air conditioning system | 40 |
| 12 | Electric Parking Brake (EPB) (Left) | 20 |
| 13 | Audio system | 40 |
| 14 | Electric Parking Brake (EPB) (Right) | 20 |
| 15 | Engine control system | 40 |
| 16 | ABS, Dynamic Stability Control (DSC) | 50 |
| 17 | Various electrical circuits | 50 |
| 18 | Windshield wiper and washer | 20 |
| 19 | Air conditioning system | 40 |
| 20 | — | — |
| 21 | Engine control system | 7.5 |
| 22 | Various electrical circuits | 15 |
| 23 | Low-beam headlight (left) | 15 |
| 24 | Low-beam headlight (right) | 15 |
| 25 | Engine control system | 15 |
| 26 | Engine control system | 15 |
| 27 | Engine control system | 15 |
| 28 | Transmission control system, ignition switch | 15 |
| 29 | Headlight washer | 20 |
| 30 | Air conditioning system | 7.5 |
| 31 | Fuel pump | 15 |
| 32 | Brake lights | 10 |
| 33 | 2018: Rear window wiper; | 15 |
| 2019–2020: Rear window wiper, Anti-theft system (if equipped) | ||
| 34 | High-beam headlights | 20 |
| 35 | Low-beam headlight (right) | 15 |
| 36 | Fog lights (if equipped) | 15 |
| 37 | Engine control system | 7.5 |
| 38 | Audio system (if equipped) | 7.5 |
| 39 | 2018: High-beam headlights; | 10 |
| 2019–2020: Various electrical circuits | ||
| 40 | Instrument cluster | 15 |
| 41 | Instrument cluster | 10 |
| 42 | SRS airbags | 7.5 |
| 43 | Audio system (if equipped) | 10 |
| 44 | 25 | |
| 45 | ABS, Dynamic Stability Control (DSC) | 30 |
| 46 | — | — |
| 47 | 2018–2019: Heated steering wheel (if equipped); | 15 |
| 2020: Not used | ||
| 48 | Parking lights / Position lights | 15 |
| 49 | Fuel pump | 25 |
| 50 | Hazard warning flashers, turn signals, taillights | 25 |
| 51 | Daytime running lights (DRL) | 15 |
| 52 | Accessory power sockets | 15 |
| 53 | Horn | 15 |
| 54 | Various electrical circuits | 25 |
Passenger Compartment Fuse Box
Located on the driver's side behind the lower kick panel cover.
Access panel overview.
| Diagram | ||
|---|---|---|
|
||
| No. | Circuit Protected | Rating (A) |
| 1 | Power seat (if equipped) | 30 |
| 2 | Power windows (if equipped) | 30 |
| 3 | Accessory power sockets | 15 |
| 4 | Power windows | 25 |
| 5 | Power liftgate | 20 |
| 6 | Power door locks | 25 |
| 7 | Heated seats | 20 |
| 8 | SRS airbags / Electronic Steering Column Lock (ESCL) | 15 |
| 9 | Moonroof / Sunroof | 10 |
| 10 | Audio system | 15 |
| 11 | Engine control system | 7.5 |
| 12 | Power side mirrors | 7.5 |
| 13 | Shift indicator | 7.5 |
| 14 | Accessory power sockets / Cigarette lighter | 15 |
| 15 | Rear accessory power outlets | 15 |
| 16 | — | — |
| 17 | Heated side mirrors | 7.5 |
| 18 | — | — |
| 19 | Audio system | 15 |
| 20 | — | — |
| 21 | Power seat (if equipped) | 30 |