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4. Align mounting slots on the power distribution box
with the drilled mounting holes.
5. Place fasteners through slots and drilled mounting
holes. Tighten securely.
6. Measure and scribe a mark where the 41 mm (1 5/8
in.) dia. hole will be drilled. See Figure 5-6.
36.5 mm
[1 7/16 in.]
TYP.
Note: Dimensions are mm [in.] and are not to scale.
Figure 5-6 Power Distribution Box Harness
Connection Mounting
7. Use a 41 mm (1 5/8 in.) dia. hole saw and drill a hole
for the power distribution box wiring harness. See
Figure 5-6.
8. Measure and scribe a mark where each of the four
4 mm (5/32 in.) dia. mounting holes will be drilled.
See Figure 5-6.
9. Use a 4 mm (5/32 in.) dia. drill bit and drill the four
mounting holes. See Figure 5-6.
5.2.3
Power Distribution Box
Connections
Note: Ensure the HVAC system is mounted in the floor,
under the sleeper bunk, before mounting the
power
distribution
installation/operation
TP-6495 for more information about the HVAC
installation.
The power distribution box as shown in Figure 5-7,
provides power and communication to several wiring
harnesses that connect to the following items:
D
Load connection (power) harness
D
HVAC system
D
Battery charger
D
Block heater/step package
D
120 VAC receptacle outlet
TP-6583 3/08
4 mm
[5/32 in.]
dia.
qty. 4
41 mm
[1 5/8 in.]
dia.
box.
See
manuals
TP-6512
or
4
Front view
1. 120 VAC receptacle outlet power harness connection
2. HVAC power harness connection
3. Battery charger power harness connection
4. Block heater power harness connection
5. Load connection (power) harness connection
Figure 5-7 Power Distribution Box Power Harness
Connection Points
Note: The 120 VAC receptacle outlet is shown in
Figure 5-7
with
installation/operation instructions TT-1470, for
more information about installing the 120 VAC
receptacle outlet feature.
5.2.4
Connect the Load Connection
(Power) Harness
1. Locate the P9A or 7-pin connector on the end of the
load connection harness.
Note: See Section 6, Installation Drawings for
detailed wiring diagrams.
2. Connect the P9A or 7-pin connection to the P9 or
7-pin connector, located on the power distribution
box. See Figure 5-7 and Figure 5-8.
Figure 5-8 7-Pin Connection Mounting from Power
Distribution Box
3. Locate the P3B or 16-pin connector on the end of
the load connection harness.
4. Align the P3B or 16-pin connector on the end of the
load connection harness to the 41 mm (1 5/8 in.)
dia. hole drilled in the truck's floor. See Figure 5-6.
5. Place fasteners through the four 4 mm (5/32 in.)
mounting holes on connector and tighten securely.
See Figure 5-6.
3
2
1
5
a
protective
cap.
Section 5 Electrical System
See
23
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