9
Installation Procedures
5.2 OnGuard™ Radar Harness Installation
The radar harness will route as follows (Figure 7).
A. From the radar across the truck’s front closing cross member to the driver’s side frame rail
B. Around the radiator back into the frame rail.
C. Past the engine with the existing wiring and electrical harness to the front fi rewall.
D. Up out of the frame rail, up to the fi re wall and up to the Cab electrical bulk head connector.
NOTE
: The following schematic shows the harness layout.
End A. Radar plug at the front center of the bumper.
End B. The end of line resistor location on the left hand forward frame rail.
End C. The cab bulk head connection on the left hand fi rewall inside.
Fig. 7
YELLOW
GREEN
4014046b
ENGINE HARNESS, PART NUMBER 400 877 003 4
BROWN/WHITE
BLACK
“C”
“A”
“B”
1.
Starting at the radar, plug the harness into the radar connector fi rmly until you feel it click. Make a drip
loop then zip tie the harness at the radar bracket to ensure the harness is secure (Figure 8).
Fig. 8
DRIP
LOOP
4014095a
2. Route the harness across the front closing cross member to outside the driver’s side frame rail
(Figure 9). When routing the harness through the frame rail, ensure the J1939 end-of-line resistor
connector is accessible near the front of the frame rail.
Summary of Contents for OnGuard
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