fuses FORD TRANSIT 2021 User Guide

Protected Component
Fuse Rating
Item
Not used.
-
80
Trailer tow module.
40 A
81
Power sliding door.
30 A
82
Trailer brake control module.
30 A
83
Body control module.
50 A
84
Power sliding door.
30 A
85
Body control module.
50 A
86
Body Control Module Protected Component
Fuse Rating
Item
Not used.
-
1
Power inverter.
10 A
2
Power window switch.
7.5 A
3
Power exterior mirrors.
Not used.
20 A
4
271
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing FusesE145984

Protected Component
Fuse Rating
Item
Not used.
-
5
Not used.
10 A
6
Not used.
10 A
7
Telematics control unit module.
5 A
8
Rear air conditioning.
5 A
9
Not used.
-
10
Not used.
-
11
Climate control.
7.5 A
12
Data link connector.
7.5 A
13 Steering column.
Instrument cluster.
Not used.
15 A
14
SYNC 3 module.
15 A
15
Integrated control panel.
Not used.
-
16
Not used.
7.5 A
17
Not used.
7.5 A
18
Not used.
5 A
19
Ignition switch.
5 A
20
Not used.
5 A
21
Not used.
5 A
22
Not used.
30 A
23
Not used.
30 A
24
Not used.
20 A
25
Not used.
30 A
26
Not used.
30 A
27
Not used.
30 A
28
Not used.
15 A
29
272
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Fuses

Protected Component
Fuse Rating
Item
Not used.
5 A
30
Data link connector.
10 A
31
Remote key receiver.
Radio.
20 A
32
Not used.
-
33
Run/Start relay.
30 A
34 Parking aid.
Steering column.
Not used.
5 A
35
Parking aid.
15 A
36
Steering column control module.
Not used.
20 A
37
Power windows.
30 A
38
Passenger Compartment Fuse Box 273
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Fuses1
34
5 8
9 12
10
14 18
19
20 2122
23 24
15
16
67
11
13 17
2E296792

Protected Component
Fuse Rating
Item
Relay 2.
40 A
1
Relay 3.
40 A
2
Relay 1.
20 A
3
Relay 4.
20 A
4
Relay 5.
20 A
5
Not used.
-
6
Not used.
-
7
Relay 7.
20 A
8
Relay 8.
20 A
9
Not used.
-
10
Not used.
-
11
Relay 9.
20 A
12
Relay 6.
20 A
13
Ignition.
5 A
14
Power supply.
5 A
15
Auxiliary switch 3 relay.
20 A
16
Auxiliary switch 3 relay.
40 A
17
Auxiliary switch 3 relay.
40 A
18
Auxiliary switch 4 relay.
20 A
19
Auxiliary switch 5 relay.
20 A
20
Auxiliary fuse box relay.
20 A
21
Auxiliary switch 7 relay.
20 A
22
Auxiliary switch 8 relay.
20 A
23
Auxiliary switch 9 relay.
20 A
24
274
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Fuses

Pre-fuse Box
Protected Component
Fuse Rating
Item
Body control module.
125 A
1
Electronic power assist steering.
80 A
2
Not used.
-
3
Not used.
-
4
Not used.
-
5
Passenger compartment fuse box.
150 A
6
Camper.
60 A
7
Not used.
-
8
Starter motor.
500 A
9
Alternator.
Engine compartment fuse box.
300 A
10
Dual generators.
250 A
11
275
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Fuses8
14
15
13
9
10
11
12
1
2
3
4
5
6
7E296043

Protected Component
Fuse Rating
Item
Driver compartment fuse box.
150 A
12
Load shed relay.
190 A
13
Auxiliary power point 1.
175 A
14
Auxiliary power point 2.
60 A
15
CHANGING A FUSE
Fuses WARNING: Always replace a fuse
with one that has the specified
amperage rating. Using a fuse with a
higher amperage rating can cause severe
wire damage and could start a fire. If electrical components in the vehicle are
not working, a fuse may have blown. Blown
fuses are identified by a broken wire within
the fuse. Check the appropriate fuses
before replacing any electrical
components.
Fuse Types 276
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing FusesE217331 E207206

Fuse Type
Callout
Micro 2
A
Micro 3
B
Maxi
C
Mini
D
M Case
E
J Case
F
J Case Low Profile
G
277
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Fuses

UNDER HOOD OVERVIEW - 3.5L DURATEC
Air filter assembly.
A
Engine oil dipstick. See Engine Oil Dipstick (page 282).
B
Brake fluid reservoir.
See Brake Fluid Check (page 290).
C
Engine coolant reservoir. See
Engine Coolant Check (page 285).
D
Engine compartment fuse box. See
Fuses (page 263).
E
Battery connection. See
Jump Starting the Vehicle (page 251).
F
Engine oil filler cap.
See Engine Oil Check (page 282).
G
Washer fluid reservoir.
See Washer Fluid Check (page 294).
H
280
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing MaintenanceABDC
EFGHE306489

UNDER HOOD OVERVIEW - 3.5L ECOBOOST™
Air filter assembly.
A
Engine oil dipstick. See Engine Oil Dipstick (page 282).
B
Brake fluid reservoir.
See Brake Fluid Check (page 290).
C
Engine coolant reservoir. See
Engine Coolant Check (page 285).
D
Engine compartment fuse box. See
Fuses (page 263).
E
Battery connection. See
Jump Starting the Vehicle (page 251).
F
Engine oil filler cap.
See Engine Oil Check (page 282).
G
Washer fluid reservoir.
See Washer Fluid Check (page 294).
H
281
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing MaintenanceA
H
BD
EG
C
FE306483

AUXILIARY SWITCHES
The auxiliary switchboard on the center
console makes aftermarket customization
easier, with four prewired switches
attached to the power distribution box for
electrical accessories. When using the auxiliary switches for an
extended period of time, we recommend
that the engine is running to prevent the
battery from running out of charge.
A fuse and relay kit is included with this
option. The kit contains fuses and relays
for the pre-fusebox, located under the
driver
’s seat. Refer to the instructions
included with the kit. See an authorized
dealer for service.
There is one power lead connector for each
switch. These can be found at either the
43-way connector for the AUX 1 and AUX
2 switches or the 6-way connector for the
AUX 3 and AUX 4 switches. Both
connectors are behind the passenger side
cup holder.
The relays are coded as follows: Fuse Rating
Wire Color
Circuit Number
20A
Yellow
CAC05
AUX 1 1
20A
Green with brown
trace
CAC06
AUX 2 1
40A
Blue with orange
trace
CAC13
AUX 3 1
40A
Yellow with orange
trace
CAC14
AUX 4 2
1 Operates when you switch the ignition on.
2 Operates only when the engine is running.
If different switch functionality is required
please contact the Truck Body Builders
Advisory Service. See Special Notices
(page 11).
443
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing AccessoriesE163431