2021 Ford Ranger Fuse Box Diagram

Below are the locations and diagrams for all fuse boxes on a 2021 Ford Ranger.

2021 Ford Ranger Owners Manual

Fuse Box Locations

APre-fuse box. B Engine compartment fuse box. CPassenger compartment fuse box. DHigh current fuse box. Note: The passenger compartment fuse box is on the right-hand side for right-hand drive vehicles.

Pre-fuse Box Location

Your vehicle has a pre-fuse box in the engine compartment attached to the positive battery post. This box contains several high current fuses. If replacement of these high current fuses is required, see an authorized dealer.

Pre-fuse Box Diagram

Fuse Number	Fuse Rating	Protected Component
1	300A	Alternator (with auxiliary fuse and relay box).
225A	Alternator (without auxiliary fuse and relay box).
2	125A	Electronic power assist steering.

Engine Compartment Fuse Box Location

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 engine compartment fuse box has high-current fuses that protect your vehicle’s main electrical systems from overloads.When you disconnect and reconnect the battery, you need to reset some features. Lift the release lever at the rear of the cover to remove it.

Engine Compartment Fuse Box Diagram

Fuse or Relay Number	Fuse Rating	Protected Component
1	15A1	Not used (spare).
2	–	Starter motor solenoid relay.
3	5A2	Rain sensor.
4	–	Blower motor relay.
5	20A1	Auxiliary power point 3 – console rear.
6	–	Trailer park lamp relay.
7	20A2	Powertrain control module.
8	20A2	Canister vent solenoid.   Fuel vapor shutoff valve.   Canister purge valve.   Variable cam timing valve 1 and 2.   Heated oxygen sensors.
9	–	Powertrain control module relay.
10	20A1	Auxiliary power point 1 – instrument panel.
11	15A3	Ignition coils.
12	15A3	A/C control drive.   Transaxle warmer.   Auxiliary water pump.   Aspirator valve control.   Fan clutch.   Oil pump.   Turbo bypass.
13	15A3	Not used (spare).
14	15A3	Not used (spare).
15	–	Run/start relay.
16	20A1	Auxiliary power point 2 – instrument panel.
17	20A1	Auxiliary power point – rear cargo area.
18	10A2	Not used (spare).
19	10A2	Electric power assist steering.
20	10A2	Lighting control switch.
21	5A2	Transmission Run/Start relay.
22	10A2	Air conditioning compressor.
23	7.5A2	Voltage quality module.
24	10A2	Not used (spare).
25	10A3	Anti-lock brake system.
26	10A3	Not used (spare).
27	–	Not used.
28	10A2	Powertrain control module.
29	7.5A2	USB charge port.
30	–	Not used.
31	–	Not used.
32	–	Fuel pump relay.
33	–	A/C clutch relay.
34	10A2	Trailer reverse lamp.
35	15A2	Not used (spare).
36	–	Not used.
37	10A2	Heated exterior mirror.
38	–	Trailer right-hand turn and stop lamp relay.
39	–	Trailer left-hand turn and stop lamp relay.
40	–	Trailer reverse lamp relay.
41	–	Horn relay.
42	–	motor no. 2 relay.
43	–	Not used.
44	–	Not used.
45	5A2	Not used (spare).
46	10A3	Not used (spare).
47	10A3	Brake pedal switch.
48	20A2	Horn.
49	15A2	Transmission control module. Oil pump.
50	10A2	Wiper park heater.
51	–	Not used.
52	–	Not used.
53	15A2	Rear differential lock.
54	–	Not used.
55	–	Not used.
86	–	motor no. 1 relay.

¹M-type fuse.²Micro 2 fuse.³Micro 3 fuse.

High Current Fuse Box Location (Under Power Distribution Box)

Your vehicle has a pre-fuse box in the engine compartment below the engine compartment fuse box. This box contains several high current fuses. If replacement of these high current fuses is required, see an authorized dealer.

High Current Fuse Box Diagram

Fuse Number	Fuse Rating	Protected Component
1	–	Not used.
2	125A	Body control module.
3	50A	Voltage quality module (supplies rear lamp blind spot, rear view camera, head up display, 4×4 switch, image processing module and adaptive cruise control radar).
4	–	Busbar through to power distribution box.
5	100A	Auxiliary fuse and relay box.

Bottom of Power Distribution Fuse Box Location

AToward the front side of the vehicle.

1. Release the two latches on both sides of the fuse box.
2. Raise the rear side of the fuse box from the cradle.

3. Move the fuse box toward the rear side of the engine compartment and rotate as shown.
4. Pivot the rear side of the fuse box to access the bottom side.
5. Release the two latches to open the fuse cover.

Power Distribution Fuse Box Diagram (Bottom of Power Distribution Box)

Fuse or Relay Number	Fuse Rating	Protected Component
56	15A4	Trailer left-hand turn and stop.
57	–	Not used.
58	–	Not used.
59	–	Not used.
60	30A5	Fuel pump control module.
61	–	Not used.
62	50A5	Body control module 1 – lighting.
63	15A4	Trailer right-hand turn and stop.
64	30A4	Trailer brakes.
65	20A4	Heated driver seat.
66	25A4	Four-wheel drive.
67	50A5	Body control module 2 – lighting.
68	30A4	Rear window defroster.
69	30A4	Anti-lock brake system valves.
70	30A4	Passenger power seat.
71	25A5	Trailer park lamps.
72	–	Not used.
73	30A4	Trailer module.
74	30A4	Driver power seat.
75	–	Not used.
76	–	Not used.
77	–	Not used.
78	–	Not used.
79	40A5	Blower motor.
80	20A4	Heated passenger seat.
81	40A4	Inverter.
82	60A5	Anti-lock brake system pump.
83	30A4	Windshield wiper motor.
84	30A4	Starter motor solenoid.
85	–	Not used.
87	40A5	Trailer module.

⁴M-type fuse.⁵LPJ-type fuse.

Passenger Compartment Fuse Box Location

The fuse box is behind the access cover on the outermost side of the steering column.

Passenger Compartment Fuse Box Diagram

Fuse or Relay Number	Fuse Rating	Protected Component
1	–	Not used.
2	7.5A6	Not used (spare).
3	20A6	Driver door lock.
4	5A6	Not used (spare).
5	20A6	Branded audio amplifier.
6	10A7	Not used (spare).
7	10A7	Not used (spare).
8	10A7	Anti-theft alarm horn.
9	10A7	Telematics.
10	5A7	Not used (spare).
11	5A7	Not used (spare).
12	7.5A7	Electronic control panel.   Climate control.
13	7.5A7	Instrument cluster.   Steering column control module.   Data link connector.
14	10A7	Extended power module (for restraints module and occupant module).
15	10A7	SYNC Module.   Data link connector.
16	15A6	Not used (spare).
17	5A7	Not used (spare).
18	5A7	Ignition switch.   Lock solenoid.   Push button start.
19	7.5A7	Extended power module (for restraints module and occupant module).
20	7.5A7	Auxiliary switches.
21	5A7	Humidity and in-car temperature sensor.
22	5A7	Not used (spare).
23	10A6	Inverter.   Door lock switch.
24	20A6	Central locking system.
25	30A6	Driver door power window.
26	30A6	Not used (spare).
27	30A6	Not used (spare).
28	20A6	Branded audio amplifier.
29	30A6	Not used (spare).
30	30A6	Not used (spare).
31	15A6	SYNC.
32	10A6	Radio transceiver module.   Door entry remote.
33	20A6	Audio unit.
34	30A6	Run/start relay.
35	5A6	Not used (spare).
36	15A6	Auto-dimming interior mirror.   Mirror adjustment control.
37	20A6	Not used (spare).
38	30A8	Power windows.

⁶Micro 2 fuse.⁷Micro 3 fuse.⁸PTC fuse.

2021 Ford Ranger Owners Manual