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Fuse or relay number
18
19
20
21
22
23
24
25
26
27
28
29
R1
R2
R3
R4
R5
R6
Motorhome (TY3) , enUSA
Fuses
Fuse amp rating
20A**
—
30A**
20A**
20A**
40A**
50A**
40A**
40A**
30A**
30A**
60A**
40A**
—
—
—
—
—
—
62
Protected components
Backup lamp feed.
Tow/haul switch.
Transmission control indicator light.
Not used.
Powertrain control module relay coil.
Powertrain control module relay (Power
distribution box fuses # 3, 5, 7, 18).
Fuel injectors.
Fuel pump motor.
Cigar lighter feed.
Diagnostic tool connector.
Blower motor feed.
Instrument panel battery feed (fuses #4,
10, 16, 22).
Ignition switch feed (Instrument panel
fuses #1, 5, 7, 11, 13, 14, 17, 19, 23; Power
distribution box fuses #9, 11).
Ignition switch feed (Instrument panel
fuses #5, 11, 17, 23, 26, 38).
Multi-function switch (headlamps).
Starter solenoid.
Power brake assist motor – Hydromax.
Anti-lock brake system module – Hydro-
boost.
Air conditioning clutch relay.
Fuel pump relay.
Horn relay.
Starter relay.
Blower motor relay.
Powertrain control module relay.
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