Page 72 of 168

Protected Components
Fuse Rating
Fuse or Relay
Number
Power brake assist module – HydroMax.
5A 1
1
Air conditioning compressor clutch.
10A 1
2
Catalyst monitor sensor.
20A 1
3
Engine heated exhaust gas oxygen sensor
#11 and #21.
Vapor management valve.
Powertrain control module relay coil.
5A 1
4
Powertrain control module keep alive
memory.
Powertrain control module power.
20A 1
5
Instrument panel dimmer module.
20A 1
6
Park lamp feeds.
Trailer tow running lamp relay coil.
Ignition coils.
20A 1
7
Radio capacitors.
HydroMax – Anti-lock brake system
module.
30A 1
8
Powertrain control module.
10A 1
9
Daytime running lamps.
20A 1
10
Fuel pump relay coil.
20A 1
11
Powertrain control module.
Fuel pump diode.
Instrument panel - backup lamp feed.
25A 1
12
Trailer tow backup lamps feed.
Trailer tow electric brake controller feed.
30A 2
13
Instrument panel battery feed (fuse #15,
21).
60A 2
14
Lighting primary fuse.
Power distribution box fuse #19.
Trailer tow park lamps.
20A 2
15
69
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing Fuses
Page 73 of 168

Protected Components
Fuse Rating
Fuse or Relay
Number
Anti-lock brake system module –
HydroMax.
60A 2
16
Anti-lock brake system module – Hydro-
boost.
40A 2
Horn feed.
20A 2
17
Backup lamp relay coil.
20A 2
18
A/C clutch coil.
A/C demand switch.
Brake on/off switch.
20A 2
19
Multifunction switch.
Powertrain control module relay (Power
distribution box fuses # 3, 5, 7, 18).
30A 2
20
Fuel injectors.
20A 2
21
Fuel pump motor.
Mass air flow sensor.
Powertrain control module.
Cigar lighter feed.
20A 2
22
Diagnostic tool connector.
Blower motor feed.
40A 2
23
Instrument panel battery feed (fuses #4,
10, 16, 22).
50A 2
24
Ignition switch feed (Instrument panel
fuses #1, 5, 7, 11, 13, 14, 17, 19, 23, 36; Power
distribution box fuses #9, 11).
40A
2
25
Fuse holder #2.
Ignition switch feed (Instrument panel
fuses #5, 11, 17, 23, 38).
40A 2
26
Headlamps.
30A 2
27
Daytime running lamps on/off relay coil.
Headlamp daytime running lamp relay
feed.
High beam headlamps flash to pass.
(Instrument panel fuses #25, 31).
Starter relay feed.
30A 2
28
70
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Page 75 of 168
F59 Power Distribution Box
Protected Components
Fuse Rating
Fuse or Relay
Number
Air conditioning compressor clutch.
10A 1
F1
Anti-lock brake system - HydroMax.
30A 1
F2
Powertrain control module keep alive
memory.
5A 1
F3
Powertrain control module relay coil.
Not used.
—
F4
Trailer tow running lamp relay coil.
20A 1
F5
Park lamp feeds.
Instrument panel dimmer module.
Not used.
—
F6
72
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Page 76 of 168
Protected Components
Fuse Rating
Fuse or Relay
Number
Trailer tow backup lamp feed.
25A 1
F7
Backup lamp feed.
Not used.
—
F8
Daytime running lamps.
20A 1
F9
Not used.
—
F10
Not used.
—
F11
Not used.
—
F12
Not used.
—
F13
Not used.
—
F14
Power brake assist module (HydroMax).
5A 1
F15
Powertrain control module power.
20A 1
F16
Catalyst monitor sensor.
20A 1
F17
Engine heated exhaust gas oxygen sensor
#11 and #21.
Vapor management valve.
Radio capacitors.
20A 1
F18
Ignition coils.
Powertrain control module.
10A 1
F19
HydroMax module brake on/off relay feed.
10A 1
F20
Powertrain control module.
20A 1
F21
Fuel pump diode.
Fuel pump relay coil.
Brake transmission shift interlock.
10A 1
F22
Not used.
—
F23
Not used.
—
F24
Blower motor relay feed.
40A 2
J1
Headlamps.
30A 2
J2
High beam headlamps flash to pass.
73
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Page 77 of 168

Protected Components
Fuse Rating
Fuse or Relay
Number
Daytime running lamps on/off relay coil.
Headlamp daytime running lamp relay
feed.
Instrument panel fuses #25, 31.
Vehicle power.
30A 2
J3
Powertrain control module relay feed.
Power distribution box fuse F16, F17, F18,
J22.
Cigar lighter feed.
20A 2
J4
Diagnostic tool connector.
Not used.
—
J5
Starter relay feed.
30A 2
J6
Starter motor solenoid.
Anti-lock brake system module (Hydro-
boost).
40A 2
J7
Power brake assist motor (HydroMax).
60A 2
Power distribution box fuse #F20.
Trailer tow park lamps.
20A 2
J8
Instrument panel fuse #4, 10, 16, 22.
50A 2
J9
HydroMax anti-lock brake system module.
60A 2
J10
Hydroboost anti-lock brake system
module.
40A 2
Fuel pump relay feed.
20A 2
J11
Fuel injectors.
Mass air flow sensor.
Fuel pump motor.
Powertrain control module.
Trailer tow electronic brake.
30A 2
J12
Ignition switch feed (instrument panel
fuses #1, 5, 7, 11, 13, 14, 17, 19, 23, 36).
40A 2
J13
(Power distribution box fuse #F19, F22,
F21).
Not used.
—
J14
74
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Page 78 of 168
Protected Components
Fuse Rating
Fuse or Relay
Number
Instrument panel battery feed (fuse #15,
21).
60A 2
J15
Lighting primary fuse.
Horn.
20A 2
J16
Ignition switch feed (instrument panel
fuses #5, 11, 17, 23, 38).
40A 2
J17
Brake on/off switch.
20A 2
J18
Multifunction switch.
Not used.
—
J19
Not used.
—
J20
Not used.
—
J21
Reverse lamp relay coil.
20A 2
J22
A/C clutch relay coil.
A/C demand switch.
Horn relay.
—
R1
Fuel pump relay.
—
R2
Starter relay.
—
R3
Backup lamps relay.
—
R4
Brake on/off signal isolating relay
(Hydromax).
—
R5
Trailer tow parking lamps relay.
—
R6
Not used.
—
R7
A/C clutch relay.
—
R8
Not used.
—
R9
Starter relay.
—
R10
Blower motor relay.
—
R11
Daytime running lamp/headlamp relay.
—
R12
Powertrain control module relay.
—
R13
Fuel pump diode.
—
D1
75
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Page 80 of 168
Protected Components
Fuse Rating
Fuse or Relay
Number
Not used.
Relay
R11
Not used.
Relay
R12
Hydromax brake on/off relay.
10A
M1-1
Brake shift Interlock (Column shift).
10A
M1-2
Power brake assist module (Hydromax).
5A
M1-3
Powertrain control module.
10A
M1-4
UPS Power Distribution Box 2 Protected Components
Fuse Rating
Fuse or Relay
Number
Backup lamp feed.
25A 1
M1
Trailer tow backup lamp feed.
Daytime running lamps.
20A 1
M2
4–channel anti-lock brake system module
(Hydromax).
30A 1
M3
Powertrain control module run/start.
20A 1
M4
Fuel pump relay coil.
Fuel pump diode.
Brake lamps.
10A 1
M5
77
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Page 81 of 168

Protected Components
Fuse Rating
Fuse or Relay
Number
Radio capacitors.
20A 1
M6
Ignition coils.
Backup lamp relay coil.
20A 1
M7
Air conditioning clutch coil.
Air conditioning demand switch.
Catalyst monitor sensor.
20A 1
M8
Engine heated exhaust gas oxygen sensor
#11 and #21.
Vapor management valve.
Powertrain control module power.
20A 1
M9
Brake shift Interlock
5A 1
M10
Powertrain control module relay keep alive
power.
5A 1
M11
Powertrain control module relay coil.
Parking lamps feed.
20A 1
M12
Not used.
Diode
D1
Fuel pump.
Diode
D2
Air conditioning clutch.
Diode
D3
Not used.
—
R2-1
Powertrain control module relay feed
(power distribution box fuse M6, M7, M8,
M9).
30A
2
J1
Fuel injectors.
20A 2
J2
Fuel pump motor.
Mass airflow sensor.
Powertrain control module.
Cigar lighter power point.
20A 2
J3
Diagnostic connector.
Blower motor.
40A 2
J4
Headlamps.
30A 2
J5
Daytime running lamps on/off relay coil.
78
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing Fuses