Component Location
Electronic Control Circuit Diagram
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| Illustration 1 | g02228013 |
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Electronic control circuit diagram for a typical C7.1 engine | |
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| Components That May Be Only Applicable For Certain Applications | |
| Speed Control Input | Cooling Fan Solenoid |
| Ambient Air Temperature Sensor | Engine Fan Reversing Solenoid |
| Coolant Level Sensor | Air Filter Restriction Pressure Sensor |
| Ether Solenoid | |
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| Illustration 2 | g06123715 |
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Sensor locations on the left side of a typical C7.1 engine (1) Coolant temperature sensor (2) Fuel temperature sensor (3) Solenoid for the high-pressure fuel pump (4) Intake manifold air temperature sensor (5) Intake manifold pressure sensor (6) Fuel rail pressure sensor (7) 31-pin connector for the CEM (8) Electronic Control Module (ECM) (9) Barometric pressure sensor (10) Primary speed/timing sensor (11) Oil pressure sensor | |
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| Illustration 3 | g06123741 |
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Sensor locations on the left side of a typical C7.1 engine (1) Coolant temperature sensor (2) Fuel temperature sensor (3) Solenoid for the high-pressure fuel pump (4) Intake manifold air temperature sensor (5) Intake manifold pressure sensor (6) Fuel rail pressure sensor (7) 31-pin connector for the CEM (8) Electronic Control Module (ECM) (9) Barometric pressure sensor (10) Primary speed/timing sensor (11) Oil pressure sensor | |
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| Illustration 4 | g06123775 |
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Sensor locations on the right side and top of a typical C7.1 engine (12) NOx Reduction System (NRS) differential pressure sensor (13) NRS inlet pressure sensor (14) NRS inlet temperature sensor (15) NRS valve including a position sensor (16) Engine intake throttle valve including a position sensor (17) Wastegate regulator (18) Secondary speed/timing sensor | |
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| Illustration 5 | g06123782 |
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Sensor locations on the right side and top of a typical C7.1 engine (12) NOx Reduction System (NRS) differential pressure sensor (13) NRS inlet pressure sensor (14) NRS inlet temperature sensor (15) NRS valve including a position sensor (16) Engine intake throttle valve including a position sensor (17) Wastegate regulator | |
Typical Clean Emissions Module (CEM)
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| Illustration 6 | g06123996 |
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Sensors and components on a typical Clean Emissions Module (CEM) (19) Probe for the DOC inlet temperature sensor (20) DPF inlet pressure sensor (21) DPF outlet pressure sensor (22) Aftertreatment ID module (23) ARD combustion air valve including a position sensor (24) Aftertreatment Regeneration Device (ARD) ignition coil (25) ARD (26) Soot antennas (27) ARD pilot fuel pressure sensor (28) ARD pilot fuel control valve (29) 40-pin harness connector (30) Heater relay for the ARD nozzle | |
Caterpillar Information System:
C7.1 Engines and Generator Sets System Overview
C7.1 Engines and Generator Sets Welding Precaution
994K Wheel Loader Machine Systems Lift Position Control - Remove and Install
C7.1 Engines and Generator Sets General Information
DEF Injector Troubleshooting on Certain C4.4 Engines {108I} DEF Injector Troubleshooting on Certain C4.4 Engines {108I}
992K Wheel Loader Systems Pump Head
An Improved Case And Frame Support Is Now Used On Certain D6 Track-Type Tractors {7051} An Improved Case And Frame Support Is Now Used On Certain D6 Track-Type Tractors {7051}
Aircraft Loading Fork Attachment (ALFA) Specifications
New Special Instructions to Hood Durability Improvements Certain 980K, 980M, and 982M Medium Wheel Loaders Is Now Available {0635, 0679, 7050, 7251, 7253, 7277} New Special Instructions to Hood Durability Improvements Certain 980K, 980M, and 982M Medium Wheel Loaders Is Now Available {0635, 0679, 7050, 7251, 7253, 7277}
992K Wheel Loader Systems Piston Pump (Hydraulic Fan)
980L Tier 3 Wheel Loader Machine System Brake Control Valve (Service) - Remove and Install
980L Tier 3 Wheel Loader Engine Supplement Alternator - Remove and Install
980L Tier 3 Wheel Loader Engine Supplement Fuel Priming Pump and Primary Filter (Water Separator) - Remove and Install
High-Speed Transfer Drive Retaining Ring Failure on Certain Compact Wheel Loaders {3159, 4350, 4355} High-Speed Transfer Drive Retaining Ring Failure on Certain Compact Wheel Loaders {3159, 4350, 4355}
980L Medium Wheel Loaders Diagnostic Capabilities
980L Medium Wheel Loaders Diagnostic Trouble Codes
980L Medium Wheel Loaders Event Codes
910M, 914M, 918M, 910K, and 914K Compact Wheel Loaders, Engine Supplement Valve Mechanism Cover - Remove and Install
910M, 914M, 918M, 910K, and 914K Compact Wheel Loaders, Engine Supplement Water Temperature Regulator - Remove and Install
C4.4 (Mech) Engines for Caterpillar Built Machines Exhaust Manifold - Remove and Install - Type 2 Exhaust Manifold
C7.1 Engines and Generator Sets Diesel Particulate Filter Regeneration
C7.1 Engines and Generator Sets Diagnostic Capabilities
C7.1 Engines and Generator Sets Electrical Connectors
C7.1 Engines and Generator Sets Configuration Parameters