Protected components
Fuse amp rating
Fuse or relay number
Auxiliary switch #4 relay.
—
7
Auxiliary switch #3 relay.
—
8
Modified vehicle and stripped chassis run/
start relay.
—
9
Cooling fan relay (6.2L engine).
—
10
Cooling fan (6.2L engine).
50A***
11
Modified vehicle and stripped chassis run/
start.
40A**
12
Starter solenoid relay.
30A**
13
Run/start relay.
40A**
14
Modified vehicle and stripped chassis
battery.
40A**
15
Auxiliary air conditioning blower.
50A**
16
Trailer tow battery charge.
50A**
17
Trailer tow park feed.
Electric trailer brake.
30A**
18
Trailer brake controller.
Auxiliary switch #1.
30A**
19
Auxiliary switch #2.
30A**
20
Not used.
—
21
Not used.
—
22
Air conditioning clutch relay.
—
23
Horn relay (stripped chassis).
—
24
Run/start relay.
—
25
Alternator battery sense (6.2L engine).
10*
26
Not used.
—
27
Back-up lamp.
20A*
28
Air conditioning clutch.
10A*
29
Brake on/off switch.
10A*
30
126
E-Series (TE4) Canada/United States of America, enUSA, First Printing Fuses
