The seven-seater Mazda CX-9 crossover debuted at the 2006 New York International Auto Show, with official sales commencing in 2007. Built on the Ford CD3 platform, the first generation underwent two facelifts during its production run (in 2009 and 2012). This guide provides detailed fuse box diagrams and circuit assignments for the first-generation Mazda CX-9 (TB series; model years 2007 through 2016).
Below you will find the locations and photographs of the distribution boxes. Fuses responsible for the “Cigarette Lighter” and “Fuel Pump” are highlighted in bold.
Engine Compartment Fuse Box
Located near the battery on the left side of the engine compartment.
General view of the engine compartment fuse box.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | Amps |
| 1 | MAIN - Primary electrical circuit protection | 150 |
| 2 | ENGINE - Engine management system / PCM feed | 20 |
| 3 | R HEATER — Rear climate control / Rear heater blower | 40 |
| 4 | P.SEAT R - Right power seat controls | 40 |
| 5 | HEATER - Front climate control / Blower motor | 50 |
| 6 | IGKEY2 - Ignition switch circuits | 40 |
| 7 | FAN1 - Engine cooling fan | 30 / 40 |
| 8 | P.SEAT L - Left power seat controls | 40 |
| 9 | DEFOG - Rear window defogger | 30 |
| 10 | BTN - Main battery circuit / Body control module | 40 |
| 11 | FUEL PUMP - Fuel pump fuse | 30 |
| 12 | IGKEY1 - Ignition switch circuits | 30 |
| 13 | FOG - Front fog lights | 15 |
| 14 | ABS (SOL) - ABS solenoid valves | 30 |
| 15 | D/L - Central door power locking system | 25 |
| 16 | ROOM - Interior dome and overhead lighting | 15 |
| 17 | OUTLET CTR - Center console auxiliary power socket | 15 |
| 18 | ACC - Accessory power socket | 25 |
| 19 | AC PWR - Power sunroof, AC power inverter | 15 |
| 20 | S.WARM - Heated seats | 15 |
| 21 | A.CMAG - A/C compressor magnetic clutch | 10 |
| 22 | BOSE - Audio system (vehicles equipped with BOSE sound) | 25 |
| 23 | FAN 2 - Engine cooling fan 2 | 30 / 40 |
| 24 | ABS - Anti-lock Braking System (ABS control module) | 50 |
| 25 | IGCOIL - Ignition system / Ignition coils | 25 |
| 26 | H/L LOW L - Left low-beam headlight | 15 |
| 27 | H/L LOW R - Right low-beam headlight | 15 |
| 28 | H/L HIGH - High-beam headlights | 20 |
| 29 | HAZARD - Hazard warning lights | 15 |
| 30 | ENG+B - Powertrain Control Module (PCM) battery feed | 10 |
| 31 | HORN - Horn | 15 |
| 32 | STOP - Brake lights / Stop lights | 7.5 |
| 33 | EG I INJ - Fuel injection / Engine control system | 10 |
| 34 | ENG BAR - Mass Air Flow (MAF) sensor, EGR valve | 20 |
| 35 | ENG BAR2 - Powertrain Control Module (PCM) switch feed | 7.5 |
| R1 | Fuel pump relay | |
| R2 | EGI MAIN RELAY - Engine main control relay | |
Certain auxiliary modules may be mounted externally; for example, an auxiliary relay block is located on the right side of the engine compartment.
Passenger Compartment Fuse Box
The fuse box is located beneath the instrument panel on the passenger side, behind the glove box.
Remove the glove box access panel to reach the fuses.
General view of the interior fuse box (Mazda CX-9 TB).
| Diagram | ||
|---|---|---|
|
||
| No. | Description | Amps |
| 1 | OUTLET FR - Front accessory socket / Cigarette lighter fuse | 15 |
| 2 | MIRROR - Power side mirrors and mirror switch | 7.5 |
| 3 | Not used | |
| 4 | METER - Instrument cluster | 10 |
| 5 | SAS - Supplemental Restraint System (Airbag module) / ABS switch | 7.5 |
| 6 | ENG.IGA - Engine management system / Ignition feed | 7.5 |
| 7 | STA - Starter control signal | 7.5 |
| 8 | Not used | |
| 9 | A/C - Climate control system module | 7.5 |
| 10 | R.WIPER - Rear window wiper and washer | 15 |
| 11 | TRAILER - Trailer hitch wiring harness | |
| 12 | P.LIFT GATE - Power liftgate module | 20 |
| 13 | SUNROOF - Power sunroof | 15 |
| 14 | AUDIO - Audio unit / Infotainment system | 10 |
| 15 | M.DEF - Heated exterior mirrors | 10 |
| 16 | P/W - Power windows (passenger side) | 25 |
| 17 | TAIL - Tail lights and parking lights | 10 |
| 18 | ILLUMI - Instrument cluster and switch backlighting | 10 |
| 19 | INJ - Fuel injection system | 7.5 |
| 20 | Not used | - |
| 21 | OUTLET CTR - Center console power outlet | - |
| 22 | OUTLET RR - Rear auxiliary power outlet | - |
| 23 | WIPER - Front windshield wiper and washer | 30 |
| 24 | P.WIND - Power windows (driver side) | 30 |
| Note: Fuses labeled “OUTLET” supply power to the accessory power sockets and cigarette lighter circuits. | ||