FIELD SERVICE BULLETIN

PACE
[ ] Safety Recall
[X] Field Campaign
[ ] Service Information
[ ] Product Improvement

Bypass battery disconnect for
camera power

FSB_2014-106
Revision: 0
Issue Date: 6/13/14
Manual Section: n/a
Author: C. Hale
Approval: W. Sprague
Form Rev. C 06/04/09

UNITS AFFECTED: 24213, 24811-24907
DESCRIPTION: The wiring addition and fuse panel will ensure that the camera system power is not
interrupted.
WARRANTY INFORMATION: Champion will notify customers on a case-by-case basis.
LABOR ALLOCATION: 1 Person, 45 minutes
CAMPAIGN EXPIRATION DATE: 12/18/14
MATERIALS NEEDED:
Part Number
3945623
3971326
3976526
3944485
3944303
3971613
3974571

Description
LOOM,1/4SPLIT NYLON W/STRIPE ALL
WIRE,12GA GXL RED
PANEL,FUSE 4 CIRCUIT 12 VOLT ATC TYPE
TERMINAL,QKDISC/FEM F/INS 16-14 .25TAB
TERMINAL,QKDISC/FEM F/INS 12-10 .25TAB
TERMINAL,RING HEAT SHRINK 12-10GA 3/8"
HOLDER,FUSE INLINE SPEMCO
CABLE TIES

Qty.
18 FT
18 FT
1
1
1
2
1
AS NEEDED

DISCLAIMER:
The procedures contained herein are not exclusive. General Coach America, Inc. cannot possibly know,
evaluate, or advise the transportation industry of all conceivable ways in which a procedure may be
undertaken or of the possible consequences of each such procedure. Other procedures may be as good,
or better, depending upon the particular circumstances involved.
Each carrier who uses the procedures herein must first satisfy itself thoroughly that neither the safety of
its employees or agents, nor the safety of any products, will be jeopardized by any procedure selected.

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PROCEDURE:
1. Park the bus in a level location, place the gear selector in PARK, apply the parking brakes, chock the
wheels, and disconnect the batteries. The next steps define work to be completed in several
locations: the Electrical Center (panel above and to the right of the driver’s head), the A pillar, the
panel in the front of the bus above the driver’s head, the area under the instrument panel by the
parking brake, and the door well. The following information details the work in each area.
2. Dis-assembly
a. A Pillar
i. Gently remove the two covers for the handle attachment screws on the A pillar.

ii. Use the power driver to remove the two holding screws and remove the handle. Set
the screws and the handle to the side.
iii. Remove the pillar cover.
iv. Front bulk head panel
1. Loosen the two locks on the overhead door, open it, and prop the door open
Two locks

Three Screws

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b. Use the square driver bit with the power drill to remove (3) screws and washer on the left
front of the overhead panel.
c. Use the square driver bit with the power drill to remove (3) screws holding the sunshade and
set the sunshade and the screws to the side.

d. The area under instrument panel by parking brake (kick panel and knee panel)
i. Remove knee panel by pulling firmly at the corners to overcome the spring clips.
ii. Remove the filler panel from around the hood release.
iii. Remove the kick panel. It is also held in place by spring clips.

Kick panel
Knee panel

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e. The door well
i. Remove and store the master disconnect switch handle. Remove and store the door
well cover to expose the wiring.

Master disconnect switch

Unfinished bus

HOLE

b.
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Finished bus

HOLE

REACH

HOLE

3. Feed wire
a. Starting at the electrical center, feed the 18 foot, loomed, 12 gauge wire into the A-pillar. To
get from the electrical center to the A-pillar, the wire must pass through a hole in the steel
roof of the OEM cab. This hole is located approximately in-line the driver. The two pictures
below left show the hole location in an unfinished bus. In a finished bus, the hole can be
reached by carefully reaching around the corner of the electrical center to the front of the bus.
Wear sleeves to protect your arm from steel edges inside the bus.

c. Once wire is fed into the hole in the cab, feed enough through so that an end is available to
grab when the ABS headliner ahead of the driver is gently pulled down at the corner.

Gently pull
down corner

Gently pull
down corner

d. When the wire has been obtained inside the headliner, then route it down the A-pillar into the
dashboard.

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e. Feed the wire down the pillar, behind the parking brake. Note the wire must go behind the
brake linkage and be secured away from any moving parts.

f. Continue running the wire along the door well.

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g. Install the In line Fuse Holder by cutting the 12 gage wire, soldering and heat wrapping the
junction then soldering the 12 gage wire on the other end of the in line fuse holder. Both
splices must be protected by heat shrink.

h. Run the wire through the OEM hole in the door well, run it under the vehicle, and cut it to fit
the connection on the Master Disconnect Switch.

View before the wire has been fed
into the OEM hole.

View showing the wire after installing
the in line fuse holder and running
through the hole. Tape the fuse holder
securely into the loom.
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i. Use a crimper to crimp the terminal to end of wire under the vehicle.

Part Number 3971613
Terminal, ring heat
shrink

.
j. Crimp and heat wrap the terminal then install it onto the unswitched lug of the master
disconnect switch.

View showing wire as run through the
OEM hole in the door well and
connected to the Master disconnect
switch.

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4. Electrical Center (Panel above and to the left of the driver’s head)
a. Loosen the lock and open the door.

b. Remove the (4) holding screws to lower the Electrical Center circuit board and access the
back side.

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c. Unplug the J2 connector. Use a de-pinning tool for Molex Sabre terminals to remove the
Battery Power and Camera Power harness pins ( J2 Pins 2 and 3). Cut the terminals from the
two wires. Plug the connector back in and re- install the board and screws.

Shows the back side of the board after
the screw are removed and the board
is pulled down.

View showing the plug before the
pins J2 – 2 and J2 – 3 have been
removed from the plug.

d. Install the fuse panel below the electrical center as shown. Use the ring terminal on the
newly ran 12 gauge wire, and connect it to the lug. Use the blue terminal on wire 12 R and
connect to a spade terminal that corresponds with a 3 amp fuse. Use the yellow terminal on
the wire marked “battery,” connecting it to a spade terminal that corresponds to a 15 amp
fuse.

15A
3A

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5. Re-assembly
a. Zip tie the wires every 12 inches along the 12 gage wire run.
a. Re-install the door well cover and the Master Disconnect Switch handle.
b. Reinstall the under dash cover.
c. Reinstall the A pillar cover and the Handle.
d. Reinstall the Sunshade.
e. Reinstall the (3) screws to the panel in the front of the bus above the driver’s head. Lock the
panel door.

.

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