HARNESS AS-CONTROL 5245527 - Caterpillar

CG137-8 and CG137-12 Engines
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Block diagram of components
(1) CG137-12 only componentThrottle Actuator
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Location of the throttle actuator (left side top engine view)
(1) Throttle actuatorThrottle actuator (1) is electronically controlled and electrically actuated. The ECM issues commands to the actuator via the CAN data link.Fuel Actuator
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Location of the fuel actuator (left side engine view)
(2) Fuel actuatorFuel actuator (2) is electronically controlled and electrically actuated. The fuel actuator and the ECM communicate via the CAN data link.Engine Sensors
Sensors provide information to the ECM. The information is used for monitoring engine operation. The information enables the ECM to control the engine as efficiently as possible over a wide range of operating conditions.The sensors provide signals to the ECM that are used in the determination of the states of engine alarms and of engine shutdowns. These conditions may be in response to abnormal operation or to a command that is initiated by the operator.
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Locations of the engine components (left side engine view)
(3) Alternator connector
(4) Engine harness (for non-incendive components)
(5) Engine harness (for incendive components)
(6) Camshaft engine speed timing sensor
(7) Alternator
(8) Fuel pressure sensor
(9) GSOVNote: Non-incendive components are required for applications intended for use in hazardous environment areas.
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Locations of the engine components (rear engine view)
(10) Inlet air differential pressure sensor (Optional)
(11) Crankshaft speed/timing sensor
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Locations of the engine components (right side engine view)
(12) Oxygen sensor for the inlet of the catalyst
(13) Connector for the oxygen sensor for the outlet of the catalyst
(14) Power convertor
(15) Intake manifold air temperature sensor
(16) Harness for the emissions components
(17) Engine interface connector
(18) Intake manifold pressure sensor
(19) Engine coolant temperature sensor
(20) Connector for the air starting solenoid
(21) Unfiltered oil pressure sensor (CG137-8)
(22) Filtered oil pressure sensor (CG137-8)
(23) Solenoid for the electric starting motor
(24) Oil temperature sensor
(25) Unfiltered oil pressure sensor (CG137-12)
(26) Filtered oil pressure sensor (CG137-12)ECM Control Box
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Locations of the engine components (top side engine view)
(27) ECM
(28) J1/P1 ECM connector
(29) Terminal strip
(30) Connectors for the ignition harnesses
(31) J2/P2 ECM connectorsExhaust Temperature Module
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Locations of the components for the exhaust temperature module (left rear engine view)
(32) Exhaust temperature module
(33) Left and right bank exhaust temperature sensors
(34) Turbocharger turbine inlet temperature sensorSensors for the Catalytic Converter/Muffler
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Locations of the sensors that are for the catalytic converter/muffler
(35) Temperature sensor for the inlet of the catalytic converter/muffler
(36) Temperature sensor for the outlet of the catalytic converter/muffler
(37) Oxygen sensor for the outlet of the catalyst