Not shown in the harness overview and in the 3D-
views are harnesses that are merely an extension
cord for some of the connectors, or jumpers that
connect between wires. The lay-out of these har-
nesses can be read from the electrical schematic.
For the actual location of these harnesses, read the
code of the mating connector from the electrical
schematic and look up the figure and item number
from Connector Overview. For example: the Closed
Cab harness connects with the Cab Lights RH,
which connects to CPS 64. See Figure 16.
Not shown on the figures for the frame harnesses
are the connectors for engine components such as
sensors, fan clutch and grid heater relays.
There are four jumper options:
• Jumper Power Supply by Ignition provides
power supply for side, tail and hazard lights
when the ignition switch is turned to the ON
position. See schematic location [99, H]. This
harness is to be plugged into connector
CPS651, which connects pin A with pin B.
• Jumper Power Supply by Battery directly
provides power supply from the batteries to
the circuit for side, tail and hazard lights, al-
lowing activating these lights irrespective of
the ignition switch position. See schematic
location [98, H]. This harness is to be plug-
ged into connector CPS650, which connects
pin B with pin C.
• The strobe light jumper allows activation by
ignition by connecting a jumper between pin
number 2 and pin 3 of the strobe switch. See
schematic location [72, L].
• Operator Presence Switch Jumper, which is
removed when connecting the optional seat-
belt sequencer.
Harness Interconnection
On the electrical schematic the interconnection be-
tween two harnesses is indicated by a harness di-
viding line, which will run across the two mating
harness connectors. See Figure 1, item 15.
ELECTRICAL CONNECTORS
Connector Types
Connector types are identified by letter codes. Mul-
tiple pin or socket connectors have a three letter
code. Terminators, that are not isolated when de-
tached, have a two letter code. The explanation of
the letter codes is shown in Table 4.
Table 4. Connector Types
Letter Code
Explanation
CRP
Connector Receptacle Pin
CRS
Connector Receptacle Socket
CPP
Connector Plug Pin
CPS
Connector Plug Socket
TS
Terminal Socket
TP
Terminal Pin
Electrical Schematic and System Description
2200 SRM 1944
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