2018 Ford Flex Fuse Box Diagram

FUSE SPECIFICATION CHART

Power Distribution Box

WARNING:  Always disconnect the battery before servicing high current fuses. WARNING:  To reduce risk of electrical shock, always replace the cover to the power distribution box before reconnecting the battery or refilling fluid reservoirs.

The power distribution box is in the engine compartment. It has high-current fuses that protect the vehicle’s main electrical systems from overloads.If you disconnect and reconnect the battery, you will need to reset some features.   See   Changing the 12V Battery. 

Fuse or Relay Number	Fuse Amp Rating	Protected Components
1	40A1	Fan relay 2.
2	40A1	Fan relay 1.
3	30A1	Trailer brake control module.
4	30A1	Wipers.   Washer pump.
5	50A1	Anti-lock brake system pump.
6	20A1	Center console power point (without rear park aid).
7	30A1	Power liftgate.
8	20A1	Moonroof.
9	20A1	Second row console power point.
10	Relay	Third row power seats relay.
11	Relay	Heated rear window relay.
12	Relay	Trailer tow battery charge relay.
13	Relay	Starter motor relay.
14	Relay	Cooling fan number 2 relay.
15	Relay	Fuel pump relay.
16	–	Not used.
17	30A1	110V AC power point.
18	40A1	Front blower motor relay.
19	30A1	Starter relay.
20	20A1	Storage bin power point.
21	20A1	Instrument panel power point / cigar lighter.
22	30A1	Third row seat module.
23	30A1	Driver power seat.   Memory module.
24	30A1	Trailer tow battery charge.
25	–	Not used.
26	40A1	Rear window defroster.   Heated mirrors.
27	20A1	Cargo power point.
28	30A1	Front heated and cooled seats.
29	20A1	Front heated seats (without cooled seats).
30	20A1	Rear heated seats.
31	25A1	Electric fan relay 3.
32	Relay	Auxiliary blower motor relay.
33	Relay	Cooling fan #1 relay.
34	Relay	Front blower motor relay.
35	Relay	Cooling fan (series) relay.
36	–	Not used.
37	Relay	Trailer tow right-hand stop/turn lamps relay.
38	Relay	Trailer tow reverse lamps relay.
39	30A1	Auxiliary blower motor.
40	–	Not used.
41	–	Not used.
42	30A1	Passenger power seat.
43	20A1	Anti-lock brake system valves.
44	Relay	Windshield washer relay.
45	5A2	Rain sensor.
46	5A2	Canister vent solenoid (EcoBoost engines).
47	15A2	Washer pump.
48	10A2	Front park lamps.
49	–	Not used.
50	10A2	Heated mirrors.
51	–	Not used.
52	–	Not used.
53	Relay	Trailer tow left-hand stop/turn lamps relay.
54	–	Not used.
55	Relay	Wiper relay.
56	30A2	Fuel injectors.   Fuel pump relay.
57	20A2	Left-hand high intensity discharge headlamp.
58	10A2	Alternator sensor.
59	10A2	Brake on/off switch.
60	10A2	Trailer tow back-up lamps.
61	–	Not used.
62	10A2	A/C clutch relay.
63	15A2	Trailer tow stop/turn lamps.
64	15A2	Rear wipers.
65	–	Not used.
66	Relay	Powertrain control module – vehicle power relay.
67	20A2	Vehicle power #2 – oxygen sensor heater.   Mass airflow sensor.   Variable camshaft timing solenoid valve.   Canister vent solenoid.   Canister purge solenoid.
68	20A2	Vehicle power #4 (ignition coils).
69	20A2	Vehicle power 1 (powertrain control module).
70	15A2	Vehicle power #3 (coil) – A/C clutch relay.   Fan control relay coils 1-3.   Variable air conditioning compressor.   Auxiliary transmission warmup.   Turbo charge waste-gate control.   Electronic compressor bypass valve.   All-wheel drive module.   Positive crankcase ventilation heater.
71	–	Not used.
72	–	Not used.
73	–	Not used.
74	–	Not used.
75	–	Not used.
76	–	Not used.
77	Relay	Trailer tow park lamps relay.
78	20A2	Right high-intensity discharge headlamp.
79	–	Not used.
80	–	Not used.
81	–	Not used.
82	15A2	Rear washer.
83	–	Not used.
84	20A2	Trailer tow park lamps.
85	–	Not used.
86	5A2	Powertrain control module.   Keep alive power and relay.   Powertrain control module relay.   Canister vent solenoid (non-EcoBoost engines).
87	5A2	Run/start relay.
88	Relay	Run/start relay.
89	10A2	Anti–lock brake system module.
90	10A2	Powertrain control module run/start.
91	10A2	Adaptive cruise control module.
92	5A2	Front blower relay coil.   Power steering module.
93	5A2	Auxiliary blower motor.   Rear window defroster relay power.   Battery charge relay.
94	30A1	Body control module run/start.
95	5A2	Front passenger window switch.
96	–	Not used.
97	–	Not used.
98	Relay	A/C clutch relay.

¹J Case Low Profile fuse.²Mini fuse.

Passenger Compartment Fuse Panel

The fuse panel is under the instrument panel to the left of the steering wheel. You may need to remove a trim panel to access it.

Fuse or Relay Number	Fuse Amp Rating	Protected Components
1	30A	Driver front power window.
2	15A	Memory seat.   Second row seats.
3	30A	Passenger side front window.
4	10A	Demand lamps battery saver relay.
5	20A	Audio amplifier   Active noise control module.
6	5A	Not used (spare).
7	7.5A	Driver seat module logic.   Left front door zone module.   Keypad.
8	10A	Power liftgate.
9	10A	SYNC module.   Electronic finish panel.   Radio frequency transceiver module.
10	10A	Run accessory relay.   Front wiper motor relay.
11	10A	Intelligent access module logic.   Heads-up display.
12	15A	Puddle lamp.   Backlighting LED.   Interior lighting.
13	15A	Right-hand direction indicators.
14	15A	Left-hand direction indicators.
15	15A	Center high mounted stop lamp.   Backup lamp.
16	10A	Right low beam headlamp.
17	10A	Left low beam headlamp.
18	10A	Third row power seats.   Start button.   Keypad illumination.   Brake-shift interlock.   Powertrain control module wake-up.   Anti-theft system.
19	20A	Not used (spare).
20	20A	Locks.
21	10A	Extended power module.
22	20A	Horn relay.
23	15A	Steering wheel control module logic.   Instrument cluster.
24	15A	Steering wheel control module.   Datalink.
25	15A	Liftgate release.
26	5A	Ignition switch.   Push button ignition switch.
27	20A	Intelligent access module power.
28	15A	Not used (spare).
29	20A	Radio.   Global positioning system module.
30	15A	Front park lamps.   Trailer tow relay for park lamps.   Front side markers.
31	5A	Trailer tow brake controller.
32	15A	Smart window motors.   Master window and mirror switch.   Lock switch illumination.   Moonroof.   110V AC power point.   Interior rearview mirror.
33	10A	Not used (spare).
34	10A	Reverse park aid module.   Rear heated seat module.   Blind spot monitor module.   Rear video camera.   Interior mirror.
35	5A	Climate control humidity sensor.   Heads-up display.
36	10A	Heated steering wheel.
37	10A	Refrigerator.
38	10A	Front passenger window switch.
39	15A	High beams.
40	10A	Rear park lamps.   License plate lamps.
41	7.5A	Extended power module.
42	5A	Not used (spare).
43	10A	Not used (spare).
44	10A	Not used (spare).
45	5A	Not used (spare).
46	10A	Climate control module.
47	15A	Fog lamp relay power.   Front direction indicators.
48	30A Circuit breaker	Front passenger power window.   Rear power windows.
49	Relay	Delayed accessory relay.   Body control module.

To download the complete user manual, please download the following file:

https://www.fordservicecontent.com/Ford_Content/vdirsnet/OwnerManual/Home/Index?Variantid=4696&languageCode=EN&countryCode=USA&marketCode=US&bookcode=O38083&VIN=&userMarket=usa&div=f