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Battery Control Center (Con’t). Battery Control Center (Con’t). F20. Blank. Changed to circuit breakers by Rev K. F1 25A. MAXI. Driver Pwr Seat. F15 3A. LP Det (Coach). Pass Pwr Seat. F2 25A. MAXI. F14 15A Luggage Bay Lights. F16 10A. Radio Switch. F3 20A. Step Motor.

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battery control center con t1
Battery Control Center (Con’t)

F20

Blank

Changed to circuit breakers by Rev K

F1 25A

MAXI

Driver Pwr Seat

F15 3A

LP Det (Coach)

Pass Pwr Seat

F2 25A

MAXI

F14 15A Luggage Bay Lights

F16 10A

Radio Switch

F3 20A

Step Motor

F17 3A

AUX Start Dash Switch

F4 3A

Step Switch

F18 3A

Solar Panel

F13 15A

Fog Lights

F5 3A

LP Det (Chassis)

F19 5A*

Coach & Chassis Bat Disconnect Switch Coil Power

F6 3A

Ignition Signal

F21 15A Service Bay Lights

F23 10A* AUX Hot

* Changed to 10A by Rev H

F7 15A

Spare IGN

* Changed to 5A by Rev J

F8 15A

Spare

F9 20A

Power Mirror

F10 15A

Horn

F11 10A

Leveling Jacks

F12 15A

Dash Fan

F22 3A

AUX Start Relay Pwr

battery control center con t2
Battery Control Center (Con’t)
  • Battery Disconnect Switches
    • Each switch controls a magnetically latched relay with power applied to coil only momentarily to latch the switch
    • Unlatch by applying current in the other direction
    • If chassis or coach battery is disconnected , it is automatically connected if ignition is switched on
    • A lockout feature prevents disconnecting the chassis battery when the ignition switch is on
battery control center con t3
Battery Control Center (Con’t)
  • What does NOT work with Coach battery disconnected:
    • 12v Lighting / 12v Power Outlets
    • Water Pump / Dash Radio / Bedroom Radio
    • Furnace / Refrigerator / Water Heater
    • Air Conditioners
    • Generator
battery control center con t4
Battery Control Center (Con’t)
  • What does NOT work when Chassis battery disconnected with ignition switch OFF:
    • Steps
    • Clearance lights
    • Fog lights
    • Slides
    • Leveling Jacks
  • Turning On the ignition switch automatically causes both battery disconnect relays to change to the connected position
  • The chassis battery cannot be disconnected using the disconnect switch with ignition ON
  • The coach battery can be disconnected using the disconnect switch.
battery control center con t5
Battery Control Center (Con’t)
  • What does NOT work when bothChassis battery and Coach battery are disconnected:
    • Propane detector
      • Propane automatic shutoff valve closes to prevent any propane use while the detector has no power
battery control center con t6
Battery Control Center (Con’t)
  • Charging and Auxiliary Starting Relay
    • Located on back wall in electrical bay
  • Charging
    • Automatically connects chassis and coach batteries in parallel to allow charging of both when:
      • Either battery voltage reaches 13.2
      • Relay automatically isolates batteries from each other when voltage drops to:
        • 12.6 with ignition off
        • 12.2 with ignition switch on.
  • Auxiliary Starting
  • Dash switch used to connect chassis and coach batteries in parallel while switch is held ON
      • Start engine with dead chassis battery
      • Start generator with dead coach battery
slide9

Freightliner Panel #2 Under Dash

Neutral Sense Relay

Heater Relay

ACC 1 Relay

Service Brake Relay

Horn Relay

IGN Relay

Maxi Fuses

Cab Bat Sply 2 20 Amp

Cab Bat Sply 1 20 Amp

Heater Relay Sply 30 Amp

Horn Sply 20 Am

Brake Pwr Sply 20 Amp

Cab Bat Sply 3 20 Amp

ACC 1 10 Amp

WPR 25 Amp

IGN 1 10 Amp

ACC 2 10 Amp

Brake Lamp Relay

IGN 2 10 Amp

Freightliner 12 Volt Fuses and Relays

VDC Bay

Freightliner Panel #1 Under Dash

Panel Lamp 10 Amp

Marker SW Pwr 15 Amp

Dome Lamp 10 Amp

Head Lamp 15 Amp

Exhaust Brake Relay

Air Drain Valve 15 Amp

Marker Lamp 30 Amp

Tail Lamp 10 Amp

Air Dryer 15 Amp

Instrument Cluster 10 Amp

IGN 3 30 Amp

ABS Pwr 2 10 Amp

ABS Pwr 1 10 Amp

Exhaust Brake Pwr 10 Amp

DRL IGN Pwr 10 Amp

DRL MOD Pwr 10 Amp

Turn Signal 10 Amp

Fuel Pump Relay

Cummins Engines Only

Ignition 2 Relay FL# 23-11276-011

Marker Lamps Relay FL# 23-11276-011

Cruise Disengage Relay

ABS ECU Relay FL# 06-39301-000

DRL IGN Relay

Air Dryer/Drain Valve Relay

Ignition Sense Relay

ABS Light Relay

Left Headlamp Relay

Exhaust Brake Relay

Right Headlamp Relay

Park Brake Relay

other 12 volt fuses and relays
Other 12 Volt Fuses and Relays

Bedroom Panel

Electric Service Bay

Under Dash

Cigarette Lighter 10 Amp

Pass Seat Heater 7.5 Amp

Water Pump 15 Amp2

Left Turn 20 Amp

Wipers 30 Amp

Thermostat 5 Amp1

Bath fan, lights aft florescent 15 Amp

Backup Camera 3 Amp

Driver Seat Heater 7.5 Amp

LR driver side lights 20 Amp

Clearance Lights 20 Amp

Condenser Fan 20 Amp

Neutral Safety Common 10 Amp

Kitchen fan, florescent. 20 Amp

Electric4 Awning 15 Amp

Appliances 20 Amp

Right Turn 20 Amp

15 Amp?

Heater Blower 30 Amp

BR radio, lights. 20 Amp

Poarch, entry, fwd florescent 20 Amp

Dash Radio 7.5 Amp

Stop Hazard 20 Amp

ICC Power 15 Amp

Power Visors 7.5 Amp

Energy Mgt System3 5 Amp

Sat Ant, TV Booster 15 Amp

LR passenger side lights 15 Amp

LR 12V Outlet 15 Amp

Notes:

1. Also 2 Amp fuse in thermostat

2. Changed to 15 Amp for new water pump. Was 10 Amp

3. Also 3 Amp fuse on 50A Smart EMS circuit board

4. Also 10 Amp fuse in awning control box above passenger door

power gear fuses and relays

Relay Tyco VF4-15F13

Relay Tyco VF4-15F13

Relay Tyco VF4-15F13

Relay Tyco VF4-15F13

Relay Tyco VF4-15F13

Relay Tyco VF4-15F13

20 Amp Auto Reset CB

15 Amp Auto Reset CB

20 Amp Auto Reset CB

25 Amp Slow Blow Fuse

25 Amp Slow Blow Fuse

20 Amp Slow Blow Fuse

Power Gear Fuses and Relays

Leveling Jacks Controller – Located Under Dash Near Jack Controls

Left Rear Leg 3 Amp

Right Rear Leg 3 Amp

Dump Valve 3 Amp

Front Legs 3 Amp

Slide Out Controller – Located in Electric Service Bay

Connector

Connector

Connector

Bedroom Slide Out

Driver Side Slide Out

Pass Side Slide Out

conclusion
Conclusion
  • Inverters and Batteries are a good things
  • Maintain and test your batteries
  • Keep a supply of spare fuses and bulbs
  • Get a copy of your wiring diagram
  • Have the basic tools to troubleshoot problems
  • Use the corporate knowledge of DOAI members for help