OPTION AR-HYDRAULIC 3966761 - Caterpillar

Illustration 1 g01825097
Diagram of components
Illustration 2 g01825113
Diagram of components
Illustration 3 g01825354
Sensor locations (1) ECM engine connector JI/P1 (2) ECM engine connector J2/P2 (3) Injector connectorP52 - P57 (4) TC probe connector J26 (5) Machine connector J3 (6) Injection actuation pressure control valveP46 (7) Atmospheric pressure sensor (8) Turbocharger outlet pressure sensor connector J23 (9) Atmospheric pressure sensor J27 (10) Injection actuation pressure sensor connector J45 (11) Primary speed/timing sensor connector J20
Illustration 4 g01825355
Sensor locations (1) Fuel temperature sensor connector P43 (2) Oil temperature sensor connector P51 (3) Machine connectorJ3 (4) Oil pressure sensor connector J22 (5) Secondary speed/timing sensor connector J44 (6) Injection actuation pressure control valve (7) Oil temperature sensor (8) Oil pressure sensor (9) Secondary speed/timing sensor (10) Fuel temperature sensor (11) Coolant temperature sensor connector P47 (12) Coolant flow switch connector P21 (13) Coolant flow switch
Table 1
Electrical Connectors and Functions    
Jack/Plug     Functional Description    
J1/P1     Electronic Control Module (ECM) (key C Connector)    
J2/P2     Electronic Control Module (ECM) (key D Connector)    
J3/P3     Machine Interface (40-Pin Connector)    
J20/P20     Primary Speed/Timing Sensor (3-Pin Connector)    
J21/P21     Coolant Temperature Sensor (3-Pin Connector)    
J22/J22     Oil Pressure Sensor (3-pin Connector)    
J23/P23     Turbocharger Compressor Outlet Pressure Sensor (3-Pin Connector)    
J25/P25     Turbocharger Compressor Inlet Pressure Sensor (3-Pin Connector)    
J26/P26     Timing Calibration (2-Pin Connector )    
J27/P27     Atmospheric Pressure Sensor (3-pin Connector)    
J35/P35     Throttle Position Sensor (3-Pin Connector)    
J42/P42     Cab Service Tool (9-Pin Connector)    
J43/P43     Fuel Temperature Sensor (3-Pin Connector)    
J44/P44     Secondary Speed/Timing Sensor (3-Pin Connector)    
J45/P45     Injection Actuation Pressure Sensor (3-Pin Connector)    
J46/P46     Injection Actuation Pressure Control Valve (3-Pin Connector)    
J47/P47     Coolant Flow Switch (2-pin Connector)    
J51/P51     Oil Temperature Sensor (3-Pin Connector)    
J52/P52     #1, #3 Hydraulic Electronic Unit Injector (4-Pin Connector)    
J53/P53     #5, #7 Hydraulic Electronic Unit Injector (4-Pin Connector)    
J54/P54     #9, #11 Hydraulic Electronic Unit Injector (4-Pin Connector)    
J56/P56     #2, #4 Hydraulic Electronic Unit Injector (4-Pin Connector)    
J57/P57     #6, #8 Hydraulic Electronic Unit Injector (4-Pin Connector)    
J58/P58     #10, #12 Hydraulic Electronic Unit Injector (4-Pin Connector )    
J60/P60     Engine service Tool (9-Pin Connector)    
J79/P79     Ride Control Solenoid (2-Pin Connector)    
J86/P86     Engine Fan Control Solenoid (2-Pin Connector)    
J97/P97     Computerized Monitoring System Display Connector