Sumitomo SH300-5 Hydraulic Excavator Troubleshooting Manual WLST3305TS-01W - PDF DOWNLOAD

Page 6

Troubleshoot Abbreviation Table Abbreviation

Name

Meaning, remarks Communication technique used for communication between ECM and computer A

CKP sensor

Crankshaft position sensor

A sensor that detects the angle of rotation of the crankshaft It is installed on the flywheel housing.

CMP sensor

Camshaft position sensor

A sensor that detects the angle of rotation of the camshaft It is installed on the rear of the cylinder head.

DMM

Digital multi-meter

Tester for diagnosing electrical systems

DTC

Diagnostic trouble code

This is a self-diagnosis code. There is a code number for each trouble location.

ECM

Engine control module

A computer for engine control and this is the core of engine control.

Engine coolant temperature sensor

Engine coolant temperature sensor

Electronic control unit

Microcomputer for various control functions

Exhaust gas recirculation

Exhaust gas recirculation recirculates part of the exhaust gas from the engine into the intake system, this mixes with new mixed air to reduce the combustion temperature, which suppresses the generation of nitrogen oxides (NOx).

CO US N F E ID O E F N TS TI M AL GL : F O OR BA T L H

E

EGR

TE RN

ECU

IN

ECT sensor

AL

Controller area network

CAN

EMPS

FT sensor GND

IAT sensor SCV

Engine module programming system

System for rewriting ECM control programs

Fuel temperature sensor

Fuel temperature sensor Installed on the supply pump.

Ground

Ground

Inlet air temperature sensor

Intake air temperature sensor

Suction control valve

Valve that controls the flow of fuel to the common rail. Installed on the supply pump.

SST-10-01-008EN

2 2


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