C13, C15, and C18 Engines – Location of the Engine Sensors

Table 2
Component Name Conversion to Caterpillar ET Display Name
Caterpillar ET Display Component Name Troubleshooting Guide Component Name
Engine charge air cooler #1 outlet temperature Charge air cooler outlet temperature
ARD fuel flow diverter actuator status ARD fuel diverter valve
EGR differential pressure NRS delta pressure sensor
EGR intake pressure (absolute) NRS absolute pressure sensor
EGR temperature NRS temperature sensor
EGR valve EGR actuator
Engine exhaust manifold bank #1 flow balance valve solenoid Balance valve solenoid
DPF #1 intake pressure DPF intake pressure
DPF #1 intake temperature DPF inlet temperature sensor
ARD fuel pressure #1 Pilot fuel pressure sensor
ARD fuel pressure #2 Main fuel pressure sensor
Aftertreatment #1 ignition transformer ARD ignition coil
Aftertreatment #1 fuel injector #1 heater Heated nozzle
Aftertreatment #1 exhaust gas temperature #1 Flame detection temperature sensor
Aftertreatment #1 secondary air pressure Combustion air inlet pressure sensor

Illustration 2 g02111055
(A) Refer to “View A” for a detailed illustration.

(B) Refer to “View B” for a detailed illustration.

(C) Refer to “View C” for a detailed illustration.

(D) Refer to “View D” for a detailed illustration.

(E) Refer to “View E” for a detailed illustration.

(F) Refer to “View F” for a detailed illustration.

(G) Refer to “View G” for a detailed illustration.

(H) Refer to “View H” for a detailed illustration.

(I) Refer to “View I ” for a detailed illustration.

View A

Illustration 3 g02111053
(1) Coolant temperature sensor

View B


Illustration 4 g02111057
(2) Intake manifold pressure sensor

View C

Illustration 5 g02111050
(3) Fuel rail pressure sensor

View D


Illustration 6 g02111059
(4) NRS temperature sensor

(5) NRS differential pressure sensor

(6) NRS absolute pressure sensor

View E


Illustration 7 g02111060
(7) Atmospheric pressure sensor

(8) Outlet temperature sensor for the charge air cooler

View F


Illustration 8 g02111054
(9) Oil pressure sensor

View G


Illustration 9 g02111056
(10) Crankcase pressure sensor

View H


Illustration 10 g02111052
(11) Primary speed-timing sensor (top)

(12) Secondary speed-timing sensor (bottom)

View I


Illustration 11 g02111051
(13) Fuel pressure sensor at the inlet of the tertiary fuel filter

(14) Fuel temperature sensor

(15) Fuel pressure sensor at the outlet of the tertiary fuel filter

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