Ford Mustang V S197 2005-2009 uses a passenger-compartment fuse panel on the passenger side and an engine-compartment power-distribution box. Later model years add circuits for HID headlamps and heated seats, while several window, PCM and seat assignments changed during production.
Previous: Mustang 1999-2004. Next: Mustang S197 2010-2014.
Fuse-box locations
Passenger compartment: low in the passenger footwell, behind the right kick-panel trim and fuse cover. Engine compartment: under the large black cover of the power-distribution box.
Passenger-compartment fuse panel

| Position | Rating [A] | Protected component / function |
|---|---|---|
| 1 | Relay | Delayed accessory power. |
| 2 | – | Not used. |
| 3 | 10 | Wiper power; on later model years also blower-motor relay. |
| 4 | 5 | Power mirrors. |
| 5 | – | Not used. |
| 6 | 5 | Delayed accessory power. |
| 7 | 5 / 10 | 2005-2006: overdrive cancel; 2007-2009: electrochromic mirror / ambient lighting. |
| 8 | 10 | Instrument cluster, Data Link Connector. |
| 9 | – | Not used. |
| 10 | 5 | Intrusion-sensor module, climate control. |
| 11 | – | Not used. |
| 12 | 5 | Climate control, ignition. |
| 13 | – | Not used. |
| 14 | 5 | A/C cycling switch. |
| 15 | 10 | Brake on/off switch. |
| 16 | 5 | Instrument cluster. |
| 17 | 10 | Restraints Control Module, occupant detection, Passenger Airbag Deactivation indicator. |
| 18 | 10 | ABS; on 2005-2006 also heated PCV / ignition. |
| 19 | 5 | PCM relay, PATS; on 2007-2009 also airbag indicator in the cluster. |
| 20 | 10 | Radio – start feed. |
| 21 | 10 | Starter relay. |
Engine-compartment power-distribution box

| Position | Rating [A] | Protected component / function |
|---|---|---|
| 1 | – | Not used. |
| 2 | 30 | A/C blower. |
| 3 | 40 | Radiator cooling fan. |
| 4 | 30 | Starter. |
| 5 | 30 | 2005: right front window motor; 2006-2009: left / driver window motor. |
| 6 | 30 | Rear Shaker 1000 amplifier. |
| 7 | 30 | 2005: left front window motor; 2006-2009: right / passenger window motor. |
| 8 | 40 | ABS No. 1. |
| 9 | 30 | Rear Shaker 1000 amplifier. |
| 10 | 30 | Wipers. |
| 11 | 30 | Left rear window motor – convertible only. |
| 12 | 30 | Right rear window motor – convertible only. |
| 13 | 30 / 40 | Convertible top – 30 A in 2005, 40 A in 2009. |
| 14 | 30 | Power seat; driver seat on 2007-2009. |
| 15 | 30 | 2007-2009: passenger seat. |
| 16 | 30 | Front Shaker 500/1000 amplifier. |
| 20 | Relay | PCM / PCM No. 2. |
| 21 | Relay | Fuel pump. |
| 22 | Relay | Starter. |
| 23 | Relay | 2005-2006: PCM No. 1; not used in 2009. |
| 24 | Relay | A/C clutch. |
| 25 | Relay | Cooling fan – high speed. |
| 26 | Relay | Horn. |
| 27 | Relay | High beams. |
| 28 | Relay | Cooling fan – low speed. |
| 29 | Relay | Heated rear window. |
| 30 | Relay | Fog lamps. |
| 31 | Relay | Convertible top – open. |
| 32 | Relay | A/C blower. |
| 33 | Relay | Convertible top – close. |
| 34 | Relay | 2006-2009: decklid release. |
| 39 | 15 | 2007-2009: engine circuit No. 4. |
| 40 | 15 | Engine circuit No. 2. |
| 41 | 15 | Fuel pump. |
| 42 | 15 | Engine circuit No. 3. |
| 43 | 10 | Alternator. |
| 44 | 10 | Delayed accessory power. |
| 45 | 10 | PCM. |
| 46 | 25 | Horn. |
| 47 | 15 | Engine circuit No. 1. |
| 48 | Diode / – | 2005-2008: A/C clutch diode; 2009: not used. |
| 49 | 15 | A/C clutch. |
| 50 | 15 | High beams. |
| 51 | 10 | Convertible top. |
| 52 | 30 | Heated rear window. |
| 53 | Diode | PCM. |
| 54 | 10 / 20 | 2005-2006: PCM delay; 2008-2009: left HID headlamp – 20 A. |
| 55 | 20 | 2008-2009: right HID headlamp. |
| 56 | 20 | Radio; on 2007-2009 also SDARS satellite radio. |
| 57 | 20 | Decklid release. |
| 58 | 15 | Fog lamps. |
| 59 | 30 | Smart Junction Box No. 5. |
| 60 | – | Not used. |
| 61 | 20 | Power point No. 1 – instrument panel. |
| 62 | 20 | Smart Junction Box No. 7. |
| 63 | 30 | Smart Junction Box No. 6. |
| 64 | 20 | Power point No. 2 – console. |
| 65 | 30 | ABS No. 2. |
| 66 | 25 | 2007-2009: heated seats. |
| 67 | 30 | Smart Junction Box No. 4. |
| 68 | 20 | Ignition. |
Additional relays
On 2008-2009 cars with HID headlamps, Ford used an additional relay box under the hood. Heated-seat versions also use a small auxiliary relay panel.
| Position | Rating [A] | Protected component / function |
|---|---|---|
| 1 | Relay | 2008-2009 with HID: left HID headlamp. |
| 2 | Relay | 2008-2009 with HID: right HID headlamp. |
| 3 | – | Not used. |
| 4 | – | Not used. |
Commonly checked circuits
- Fuel pump: under-hood position 41 – 15 A; relay 21.
- OBD-II / DLC: cabin position 8 – 10 A.
- Radio: cabin position 20 – 10 A start feed and under-hood position 56 – 20 A.
- Power points: under-hood positions 61 and 64 – 20 A each.
- Heated seats 2007-2009: under-hood position 66 – 25 A.
FAQ – Ford Mustang 2005-2009 fuses
Are the 2005 and 2009 fuse assignments identical?
No. Window-motor, seat, PCM, HID and heated-seat assignments changed during the production run, so the year notes in the tables matter.
Where is the fuel-pump fuse and relay?
Fuse 41 – 15 A and relay 21 are in the engine-compartment power-distribution box.