The high-current fuses are coded as follows.
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
1
5A*
Power brake assist module -
Hydromax
2
10A*
A/C compressor clutch
3
20A*
A/C clutch relay coil, Mass air
flow sensor (MAFS) with intake
air temperature (IAT), Vapor
management valve, Engine heated
exhaust gas oxygen (HEGO)
sensor #11, HEGO #21, Catalyst
monitor sensor (CMS)
4
5A*
Powertrain control module (PCM)
memory
5
20A*
PCM power
19
29
18
28
17
27
16
26
15
25
14
24
13
11
12
91
0
78
56
34
12
23
22
21
20
R6
R5
R4
R3
R2
R1
DIODE2
DIODE1
Roadside Emergencies
71
2012 Motorhome
(mot)
Supplement, 2nd Printing
USA
(fus)