Engine Compartment Fuse Box
WARNING   WARNING:  Always disconnect the battery before servicing high current fuses.
WARNING   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 is in the engine compartment. It has high-current fuses that protect your vehicle's main electrical systems from overloads.
If you disconnect and reconnect the battery, you need to reset some features.   See   Changing the 12V Battery
Replace fuses with the same type and rating. See  Changing a Fuse . 
Power Distribution Box
Fuse Number   Fuse Rating   Protected Component  
1   20 AHorn.  
2   40 ABlower motor.   Blower motor control.  
3   —   Not used.  
4   30 AStarter motor.  
5   —   Not used.  
6   20 AUpfitter relay 4.  
8   —   Not used.  
10   —   Not used.  
12   —   Not used.  
13   10 ARun/start spare.  
14   10 AAdaptive cruise control.  
15   10 ABlower motor relay.  
16   20 AAir dryer.  
17   10 APowertrain control module - ignition status run power.   Glow plug control module - ignition status run power (diesel).  
18   10 AAnti-lock brake system run/start.  
19   10 ATransmission control module.   Ignition status run power (diesel).  
20   30 AWindshield wiper motor.  
21   —   Not used.  
22   —   Not used.  
23   10 AAlternator 2 (dual alternator only).  
24   40 ABody control module run power 2 bus.  
25   50 ABody control module run power 1 bus.  
26   —   Not used.  
27   20 ABody builder battery feed.  
28   —   Not used.  
29   10 AAlternator 1 A-Line.  
30   —   Not used.  
31   60 AHydromax pump.  
32   20 APowertrain control module.  
33   20 ACanister vent solenoid (gas).   Canister purge solenoid (gas).   Variable cam timing actuator 11 (gas).   Heated exhaust gas oxygen sensor (gas).   Urea tank power (diesel).   Exhaust gas recirculation cool bypass valve (diesel).  
34   10 AA/C clutch relay.   Customer access vehicle power 3 feed.   Variable oil pump (diesel).   Cooling fan (diesel).   Fan clutch (gas).   Exhaust brake (diesel).  
35   20 ACoil on plug (gas)   Urea tank (diesel).   Glow plug controller (diesel).   Nitrogen oxide sensor control module (diesel).   Particulate matter sensor (diesel).  
36   10 AFuel volume control value (diesel).   Fuel pressure regulator (diesel).  
37   —   Not used.  
38   —   Not used.  
39   —   Not used.  
41   30 ATrailer brake control module.  
43   —   Not used.  
45   —   Not used.  
46   10 AA/C clutch solenoid.  
47   40 AUpfitter relay 1.  
48   20 AUpfitter run and accessory feed.  
49   30 APump electronics module (gas).   Fuel pump (diesel).  
50   15 AInjector power (gas).  
51   20 APower point #1.  
52   —   Not used.  
53   30 ATrailer tow park lamp.  
54   —   Not used.  
55   20 AUpfitter relay 3.  
56   —   Not used.  
58   5 AUSB power.  
59   10 AU-Haul parking lamps (gas).  
60   10 ADual fuel tank selector switch (diesel).  
61   —   Not used.  
62   —   Not used.  
63   20 ADriver seat compressor.  
64   20 APassenger seat compressor.  
65   —   Not used.  
66   10 AFour pack solenoid differential lock.  
67   10 AHydromax relay power.  
69   —   Not used.  
70   40 AInverter.  
71   30 AAnti-lock brake system valves.  
72   10 ABrake on-off switch (hydraulic brakes).   Stop lamp air pressure switch 1 and 2 (air brakes).  
73   —   Not used.  
74   15 AHeated mirror.  
75   —   Not used.  
76   60 ABody control module battery feed.  
77   30 ABody control module voltage quality monitor power feed.  
78   10 ATransmission module (diesel).  
79   5 AHydromax pump monitor.  
80   10 ATrailer tow backup signal.  
81   —   Not used.  
82   5 AUpfitter switch (factory location for ignition power).  
83   5 AUpfitter switch (optional location for power at all times).  
84   —   Not used.  
85   —   Not used.  
86   —   Not used.  
87   —   Not used.  
88   10 ACargo lamps.  
89   —   Not used.  
91   —   Not used.  
93   —   Not used.  
94   —   Not used.  
95   20 AStop lamps.   Trailer tow stop lamps.  
96   —   Not used.  
97   —   Not used.  
98   30 ATrailer tow battery charge.  
99   40 AUpfitter relay 2.  
100   25 AGlow plug controller (diesel).  
101   —   Not used.  
102   —   Not used.  
103   —   Not used.  
104   —   Not used.  
105   15 ATrailer tow stop and turn relay.  

Note:   Spare fuse amperage may vary.

Relay Number   Fuse Rating   Protected Component  
R02   —   Not used.  
R05   —   Not used.  

Passenger Compartment Fuse Box
The fuse panel is in the passenger footwell. Remove the panel cover to access the fuses.
Pull the fuse panel cover toward you to remove it. When the clips of the panel disengage, let the panel fall easily.
Use the provided fuse puller tool to remove a fuse. It is on the fuse panel cover.
Replace fuses with the same type and rating. See  Changing a Fuse . 
Fuse Panel Diagram
Fuse Number   Fuse Rating   Protected Component  
1   —   Not used.  
2   10 ARight-hand and left-hand front door lock switch.   Telescopic mirror switch.   Right-hand and left-hand front window switch (two window units).   Right-hand and left-hand front window motor.   Inverter.  
3   7.5 APower mirror switch.  
4   20 AAncillary translator module.  
5   —   Not used.  
6   —   Not used.  
7   10 ASmart data link connector power.   Air brake diagnostic connector.  
8   —   Not used.  
9   —   Not used.  
10   —   Not used.  
11   —   Not used.  
12   7.5 ASmart data link connector.   Enterprise wired-in-device.  
13   7.5 ACluster.   Steering column control module.  
14   —   Not used.  
15   15 AClimate control module.  
16   —   Not used.  
17   —   Not used.  
18   7.5 AYaw sensor.   Electronic stability control and non-electric stability control.  
19   —   Not used.  
20   5 AIgnition switch.  
21   5 ANot used (spare).  
22   —   Not used.  
23   30 ALeft-hand front window motor.  
24   —   Not used.  
25   —   Not used.  
26   30 ARight-hand front motor window.  
27   —   Not used.  
28   —   Not used.  
29   15 ARelay folding mirror.  
30   5 ABrake signal for air brake.   Customer access stop lamp signal.   Brake on-off isolation relay.   Trailer tow stop lamp relay.  
31   10 AUpfitter interface module.   Remote radio frequency receiver.  
32   20 ARadio.  
33   —   Not used.  
34   —   Not used.  
35   5 ATow haul switch.  
36   15 ALane departure warning camera.  
37   —   Not used.  
38   30 ALeft-hand front power window switch (four window units).  

Note:   Spare fuse amperage may vary.