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Protected componentsFuse amp ratingFuse or relay number
Engine heated exhaust gas oxygen sensor#11 and #21.Vapor management valve.
Powertrain control module memory.5A*4Powertrain control module relay coil.
Powertrain control module power.20A*5
Instrument panel dimmer module.20A*6Park lamp feeds.Trailer tow running lamp relay coil.
Ignition coils.20A*7Radio capacitors.
Hydromax – Anti-lock brake systemmodule.30A*8
Powertrain control module.10A*9
Daytime running lamps.20A*10
Fuel pump relay coil.20A*11Powertrain control module power.Fuel pump diode.
Instrument panel - backup lamp feed.25A*12Trailer tow backup lamps feed.
Trailer tow electric brake controller feed.30A**13
Instrument panel battery feed (fuse #9, 15,21).60A**14
Lighting primary fuse.
Trailer tow park lamps.20A**15
Anti-lock brake system module –Hydromax.60A**16
Anti-lock brake system module – Hydro-boost.40A**
Horn feed.20A**17
Backup lamp relay coil.20A**18A/C clutch coil.A/C demand switch.
64Motorhome (TY3) , enUSA, First PrintingFuses
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Protected componentsFuse amp ratingFuse or relay number
Not used.—19
Powertrain control module relay coil.30A**20Powertrain control module relay (Powerdistribution box fuses # 3, 5, 7, 18).
Fuel injectors.20A**21Fuel pump motor.Mass air flow sensor.
Cigar lighter feed.20A**22Diagnostic tool connector.
Blower motor feed.40A**23
Instrument panel battery feed (fuses #4,10, 16, 22).50A**24
Ignition switch feed (Instrument panelfuses #1, 5, 7, 11, 13, 14, 17, 19, 23, 36; Powerdistribution box fuses #9, 11).
40A**25
Ignition switch feed (Instrument panelfuses #5, 11, 17, 23, 26, 38).40A**26
Multi-function switch (headlamps).30A**27
Starter relay feed.30A**28Starter motor.
Power brake assist motor – Hydromax.60A**29
Anti-lock brake system module – Hydro-boost.40A**
Air conditioning clutch relay.—R1
Fuel pump relay.—R2
Horn relay.—R3
Starter relay.—R4
Blower motor relay.—R5
Powertrain control module relay.—R6
65Motorhome (TY3) , enUSA, First PrintingFuses
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Protected componentsFuse amp ratingFuse or relay number
Fuel pump diode.—Diode 1
Air conditioning clutch diode.—Diode 2
*Mini fuses.
**Maxi fuses.
F59 Power Distribution Box
Protected componentsFuse amp ratingFuse or relay number
Air conditioning compressor clutch.10A*F1
Anti-lock brake system - Hydromax.30A*F2
Powertrain control module keep alivememory.5A*F3
Powertrain control module relay coil.
66Motorhome (TY3) , enUSA, First PrintingFusesE197657
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Protected componentsFuse amp ratingFuse or relay number
Not used.—F4
Running lamps.20A*F5Trailer tow lamp relay coil.
Not used.—F6
Reverse lamps.25A*F7Instrument panel fuses #33, 34.
Not used.—F8
Daytime running lamps.20A*F9
Not used.—F10
Not used.—F11
Not used.—F12
Not used.—F13
Not used.—F14
Hydromax pump motor.5A*F15
Vehicle power 1.20A*F16Powertrain control module power.
Vehicle power 2.20A*F17Catalyst monitor sensor.Engine heated exhaust gas oxygen sensor#11 and #21.Vapor management valve.
Vehicle power 4.20A*F18Ignition coils.
Powertrain control module.10A*F19
Hydromax module.10A*F20Brake on/off relay feed.
Powertrain control module.20A*F21Fuel pump diode.
Not used.—F22
Not used.—F23
Not used.—F24
67Motorhome (TY3) , enUSA, First PrintingFuses
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Protected componentsFuse amp ratingFuse or relay number
Blower motor relay feed.40A**J1
Headlamps.30A**J2Daytime running lamps on/off relay coil.Headlamp daytime running lamp relayfeed.Instrument panel fuses #25, 31.
Vehicle power.30A**J3Powertrain control module relay feed.Power distribution box fuse F16, F17, F18,J22.
Cigar lighter feed.20A**J4Diagnostic tool connector.
Not used.—J5
Starter relay feed.30A**J6Starter motor.
Anti-lock brake system.40A**J7Hydromax pump60A**
Trailer tow park lamps.20A**J8
Instrument panel fuse #4, 10, 16, 22.50A**J9
4-channel anti-lock brake system module.60A**J10
3-channel anti-lock brake system module.40A**
Fuel pump relay feed.20A**J11Fuel injectors.Mass air flow sensor.Fuel pump motor.
Trailer tow electronic brake.30A**J12
Ignition switch feed (instrument panelfuses #1, 5, 7, 11, 13, 17, 19, 23).40A**J13
Not used.—J14
Instrument panel fuses #9, 15, 21.60A**J15
Horn.20A**J16
Ignition switch feed (instrument panelfuses #1, 5, 7, 11, 13, 17, 19, 23.40A**J17
68Motorhome (TY3) , enUSA, First PrintingFuses
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Protected componentsFuse amp ratingFuse or relay number
Not used.—J18
Not used.—J19
Not used.—J20
Not used.—J21
Reverse lamp relay coil.20A**J22A/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 relay.—R5
Trailer tow parking lamps relay.—R6
Not used.—R7
Air conditioning 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
Air conditioning clutch diode.—D2
Not used.—D3
Not used.—C1
*Mini fuses.**J-case fuse.
69Motorhome (TY3) , enUSA, First PrintingFuses
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UPS Power Distribution Box 2
Protected componentsFuse amp ratingFuse or relay number
Backup lamps.25A*M1
Daytime running lamps.20A*M2
4–channel anti-lock brake system module(Hydromax).30A*M3
Powertrain control module run/start.20A*M4Fuel pump relay coil.
Starter relay coil.10A*M5
Vehicle power 4.20A*M6Ignition coils.
Hydromax motor monitor.5A*M7
Vehicle power 2.20A*M8
Vehicle power 1.20A*M9Mass air flow sensor.
Air conditioning.10A*M10
Powertrain control module relay keep alivepower.5A*M11
Canister vent valve.
Parking lamps feed.20A*M12Trailer tow running lamp relay coil.
One-touch start.DiodeD1
71Motorhome (TY3) , enUSA, First PrintingFusesE172544
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Protected componentsFuse amp ratingFuse or relay number
Fuel pump.DiodeD2
Air conditioning.DiodeD3
Not used.—R2-1
Powertrain control module vehicle power.30A**J1
Fuel pump.20A**J2
Cigar lighter power point.20A**J3Diagnostic connector.
Blower motor.40A**J4
Headlamps.30A**J5Daytime running lamps on/off relay coil.Headlamp daytime running lamp relayfeed.
Ignition switch feeds (instrument panelfuses #F26).40A**J6
Ignition switch feeds (instrument panel#F21, F26).40A**J7
Instrument panel fuse box F11, F13, F15.50A**J8
Starter relay feed.30A**J9
4–channel anti-lock brake system module(Hydromax).60A**J10
Trailer tow electronic brake.30A**J11
Lighting (instrument panel fuses #F3, F5;power distribution box M1-2).60A**J12
Vehicle power 3.20A**J13
Horn.20A**J14
4–channel anti-lock brake system module.60A**J15
Trailer tow parking lamps.20A**J16
*Mini fuse.**J-case fuse.
72Motorhome (TY3) , enUSA, First PrintingFuses