KENR9101

25

Electronic Troubleshooting

Illustration 11

g02313374

Close up views of sensor locations on the top of the engine

(12) NOx Reduction System (NRS)

temperaturesensor

(14) NRS outlet pressure sensor

(15) NRS valve with a position sensor

(16) Engine intake throttle valve with a

position sensor

(13) NRS inlet pressure sensor

(17) Wastegate regulator

This document is printed from SPI². Not for RESALE

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KENR9101

Electronic Troubleshooting

Illustration 12

g02854896

Sensors and components on a typical CEM

(19) Soot antenna

(23) Inlet pressure sensor for the DPF

(28) ARD pilot fuel pressure sensor

(20) Aftertreatment Regeneration Device

(ARD) ignition coil

(21) ARD air pressure sensor

(22) Heater relay for the ARD nozzle

(24) Inlet temperaturesensor for the DPF

(25) Soot antenna

(26) 40-pin harness connector

(27) ARD pilot fuel control valve

(29) AftertreatmentID module

(30) ARD combustion air valve including a

position sensor

(31) Spark plug

i05291450

Table 5

Engine Wiring Information

Color Codes for the Harness Wire

Color Code

Color

Color Code

Color

BK

BR

Black

BU

Blue

Harness Wire Identification

Brown

Red

PU

GY

WH

PK

Purple

Gray

RD

OR

Perkins  identifies all wires with 11 solid colors. The

circuit number is stamped on the wire at a 25 mm

(1 inch) spacing. Table 5 lists the wire colors and the

color codes.

Orange

White

Pink

YL

Yellow

Green

GN

This document is printed from SPI². Not for RESALE

KENR9101

27

Electronic Troubleshooting

For example, a wire identification of X925-PK(Pink)

on the schematic would signify a pink wire with the

circuit number X925. X925-PK(Pink) identifies the

power supply for the No. 1 injector.

Note: Always replace a harness wire with the same

gauge of wire and with the same color code.

Note: In the following diagrams, “Px” signifies a plug

and  “Jx” signifies a jack.

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28

KENR9101

Electronic Troubleshooting

Schematic Diagrams

Illustration 13

g02175988

Schematic diagram of the engine connections to the J2 connector on the ECM

This document is printed from SPI². Not for RESALE

KENR9101

29

Electronic Troubleshooting

Illustration 14

g02362277

Schematic diagram of the NRS equipment

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30

KENR9101

Electronic Troubleshooting

Illustration 15

g02362256

Schematic diagram of the Clean Emissions Module (CEM) Sheet 1 of 2

This document is printed from SPI². Not for RESALE